July/September 2013 - GM Service Insights
Contents
1. A Tough Part ough GM EC Torque Convertor the converter clutch by controlling more heat aftermarket torque converters can trap heat That s because unlike the Genuine GM Parts product most come painted Thomas says That paint while it may produce an attractive torque converter can act as a barrier to heat dissipation For nearly all GM applications beginning with model year 1999 factory installed torque converters employ EC When they fail replacing them with anything but the GM OE product is an invitation to trouble and unhappy customers A non EC torque converter will struggle to operate efficiently in a system designed for the technology The end result is that drivers could very well detect a changed driving experience Aftermarket products are often one size fits all whereas GM torque converters are calibrated for the vehicle Thomas says For instance they might not account for differences in stall speeds and that might lead to vehicles with after market torque converters experiencing rollbacks on hills continued on page 5 Genuine The Technical Side continued from page 4 A Genuine GM Parts torque converter the one designed the Genuine GM Parts product will be the choice of more for the application is readily available through GM dealers Independent Service Centers ISCs The end result they And now with new pricing on torque converters there s even and their cus2. T E 4 vf ty i eA A UNAS t Th Verify lead pull conditions condition as a vehicle pull condition as they may be trying to hold the wheel centered level on a straight road which would be adding a slight steering input to the wheels Road Conditions Road Slope High road slope angles can cause a vehicle to drift one way or the other Use a road that is as flat as possible for evaluations Trough Wander Tramlining Troughs or grooves in the road can pull a vehicle to one side or the other depending on where the tire Is located in the groove The tires will always want to pull the vehicle up the wall of the trough Vehicles with low aspect ratio wide tires tend to be more sensitive to this condition Adjusting alignment settings will not improve a trough wander condition or the sensitiv ity of the vehicle to trough wander Vehicle will pulito the teft Effect of trough wander To review all of GM s standard wheel alignment service procedures refer to Bulletin 05 03 07 009 For an overview of wheel align ment procedures check out the online ACDelco Wheel Alignment training course S SS04 05 01WBT Thanks to Rick Balabon New Chevy HHR Interior Door Handle Kit Instead of either replacing an entire door trim panel on a Chevrolet HHR that comes with the door handle pocket assembly or replacing just the assem bly GM offers a new HHR Door Handle Kit that makes it possibl
3. Tumia s customer got what he was seeking Outfitted with new headers a new clutch a stiffened up Ut July Sep 2013 Servicelnsights 6 speed transmission and an aftermarket interface to rectify the crank trigger issue the Vette was dyno tuned to deliver 428 horsepower and 421 Ib ft of torque at the wheels yielding a final reading of approximately 496 horsepower and 488 Ib ft of torque It runs strong and has some real nice lope to it he says A 35 hour job the project was typical of the ones Tumia has learned to do almost in his sleep over the years Some of that credit goes to Chevrolet Performance products Those products he says are just what many of his customers are looking for engines easily installed but able to deliver the punch they want to extend the lives of their prized vehicles We get a lot of customers coming in with cars that may not be worth much older C4s and C3s but that are driven hard and they re looking to bring back the luster of days gone by Tumia of course is happy to oblige S3 Crate Engine in the shop Corvettes of Auburn Auburn Wash Genuine Parts e _ eer ee eres ee a Se rte SS ae Se J of ct gt 7 a ell a a i C g TEN m wr i Earn reward points with purchases of GM Engines Transmissions and Powertrain Component Parts Contact your GM dealer for details or go to www genuinegmparts
4. The color of the fluid can be an indicator of contamination however some colors can be easily confused with the normal color of some fluids New fluid is usually red or light brown With time and miles used fluid often turns black This is a result of the normal chemical process that occurs as the additive package in the fluid degrades The black color does not indicate that the fluid s useful life has been exhausted When a fluid is a milky brown color it may indicate that the fluid is contam inated with significant moisture The fluid should be changed Water contamination of the axle lube also creates significant odor and forms corrosive conditions that will cause internal components of the axle to corrode Milky colored fluid combined with rust particles is a sign of moisture contamination either from submersing the axle vent a pinched or misrouted vent hose or a failed seal that is allowing moisture to enter the axle Under 5000 miles 8 000 km of operation hypoid axle lube may appear tinted and have a whitish or yellow appearance from the gear marking Compound used in the production of the axle Thanks to Dave Peacy and David MacGillis 2 TECHCONNECT ACVDelco Volume 20 Number 3 TS PU 0003 13 ACDelco TechConnect is published bi monthly and online for Independent Service Centers and Key Fleet accounts to provide timely service information increase knowledge and improve the performance of
5. com See you at Genuine E Parts MIM 07 Please visit General Motors at Booth 23743 at the 2013 SEMA Show Nov 5 8 Las Vegas Convention Center Make Plans for ATRA SEPTEMBER 22 DOM Please visit Genuine GM Parts at Booth 212 The 2013 ATRA Show takes place Sept 19 22 in Washington DC at the Washington Marriott Wardman Park Hotel July Sep 2013 Servicelnsights 11 Genuine Parts We re your one stop for all the GM Engine Transmissions and Powertrain Components you need CLIP AND PLACE BY YOUR TELEPHONE OR COMPUTER E Genuine lj Parts Give us a call for all of your Genuine GM Parts needs all at one convenient location
6. doing a powertrain repair procedure remember that we ve got all the parts you need cylinder heads actuator motors electrical pulleys a and tensioners gaskets whatever you need to keep your customers happy and coming back July Sep 2013 Servicelnsights The Technical Side cont d Generator Replacement for the Ecotec 2 5L l 4 engine LKW in the 2014 Impala Removal Procedure Disconnect the negative battery cable Refer to Battery Negative Cable Disconnection and Connection Remove the air cleaner outlet duct Refer to Air Cleaner Outlet Duct Replacement Remove the secondary air injection pump inlet hose if equipped Refer to Secondary Air Injection Pump Inlet Hose Replacement Remove the drive belt Refer to Drive Belt Replacement Raise and support the vehicle Refer to Lifting and Jacking the Vehicle Remove the protective boot 1 and the battery positive cable fastener 2 Remove the battery positive cable terminal 3 and the engine harness connector 4 Remove the lower generator mounting fastener 2 Remove the upper generator mounting fasteners 1 and secondary air injection pump inlet hose bracket if equipped 1 0 Remove the generator 1 from the engine compartment E July Sep 2013 Servicelnsights Installation Procedure Caution Refer to Fastener Caution Note Position the secondary air injection pump inlet hose bracket to the generat
7. knuckles which should be clean and lubricated with a thin layer of high temperature silicone grease use ACDelco Silicone Brake Lubricant part number 88862182 The lubri cant when ACDelco applied to the back of each pad acts as a brake tilicone Brake Lubricmi dampening compound that allows parts to slide freely and not vibrate when mov ing relative to each other ACDelco Silicone Brake Lubricant The following noises may be normal characteristics of a braking system and do not Indicate improper operation e Squeak squeal noise Occurs with front semi metallic brake pads at medium speeds when light to medium pressure is applied to the brake pedal e Grinding noise Common to rear brakes and some front disc brakes during initial stops after the vehicle has been parked overnight This is caused by corrosion on the metal surfaces during vehicle non use e Groan noise May be heard when stopping quickly or moving forward slowly from a complete stop During hard braking applications this noise is a normal function of the anti lock brake system activation Rotor Refinishing Before refinishing brake rotors refer to the Minimum Thickness specification in the appropriate Service Information Verify that the specitica tion stamped on the rotor is the minimum thickness specification after refinish and not the discard speci fication Replace the rotors if they do not meet the minimu
8. provides electrical assist in certain conditions to help save fuel It is rated at 182 horsepower 134 kW and helps achieve estimated highway mileage of 35 mpg The 2 4L with eAssist will be available at the end of this year E All of Impala s engines are matched with six speed automatic transmissions Stronger Quieter Body The 2014 Impala s comfort and refinement are rooted in a stronger body structure enabling a quieter passenger environment and a greater overall feeling of quality The stiffer architecture also enabled engineers to tune the ride and handling more precisely fora greater feeling of control and comfort With active noise cancelation 4 cylinder models ceiling mounted microphones detect engine noise the frequencies of which are processed by a computer that directs counteracting sound waves through the audio system s speakers and subwoofer This technology helps eliminate noise levels associated with torque converter lockup at low speeds Engineers optimized the upper body structure shape material and metal gage to meet all performance a July Sep 2013 Servicelnsights The Ecotec 2 5L l 4 engine for the 2014 Impala features Intake Valve Lift Control technology iVLC iVLC allows the valves to open and close by varied amounts and at different times depending on power demand to provide greater fuel efficiency or power RaT requirements with minimal mass and then applied the mass stra
9. record complete before and after alignment measure New Flat Fee Option M ments on the vehicle 2013 ACDelco Fluids and Drive the vehicle to verify that the vehicle does have a pull condition and not a Chemicals Catalog Now Available 6 steering wheel angle issue A vehicle with a valid pull condition will pull to one side Tech Tips 7 or the other regardless of steering wheel angle when at a constant highway speed on a typical straight road Training Update aaee 8 Always note which direction the steering wheel is clocked left counterclockwise or right clockwise When dealing with a verified steering wheel angle condition remember that front and rear toe are the only alignment values that affect the angle of the steering wheel www acdelcotechconnect com click the Newsletters link Causes of Vehicle Pull A vehicle pull condition may be caused by several factors Tires f a pull condition has been verified but the alignment settings all are within specifications the issue may be in the tires Certain tire differences left to right may cause a vehicle pull Temporarily swapping the front tires left to right and Follow ACLA Scan the coment re evaluating is a simple way to verify a tire issue Always note if tires are directional download eaii and not able to be permanently swapped side to side continued on page 3 The Job of Magnetic Drain Plugs Magnetic drain plugs in drive axles transmissions and trans
10. the service center ACDelco 360 represents our mission to look at our businesses at every possible angle to provide value and assistance to our distributors and their customers as well as offer a full circle of support with programs tools training and marketing focused on enhancing and growing our partnership successfully Publisher Rick Balabon ACDelco E mail lt richard balabon gm com Editor Greg St Aubin ACDelco E mail lt gregory staubin gm com Technical Editor Mark Spencer E mail lt mspencer gpworldwide com Production Manager Marie Meredith Desktop Publishing 5byb Design LLC E mail lt dkelly 5by5dzign com Write to ACDelco TechConnect P O Box 500 Troy MI 48007 0500 On the Web amp To read or print recent issues of TechConnect www acdelcotechconnect com click the Newsletters link ACDelco service tips are intended for use by professional technicians not a do it yourselfer They are written to inform those technicians of conditions that may occur on some vehicles or to provide information that could assist in the proper service of a vehicle Properly trained techni cians have the equipment tools safety instructions and know how to do a job properly and safely If a condition is described it cannot be assumed that the information applies to all vehicles or that all vehicles will have that condition All materials and programs described in thi
11. 4 d p E i b K Py E P 7 din i a k wee 4 n y E E Z Ja 4 l x e a vic ee A e IDEPENDENT SERVICE CENTERS ACBelco JUL SEP 2013 ALSO IN THIS ISSU gt Genuine GM Parts Torque Converters with EC are the Smart Choice gt Classics Repair Specialist Resurrects Vettes Parts gt The GM Powertrain Triple Play Learn More gt Look for GM at ATRA and SEMA this Fall New from the Ground Up with Never Before Available Advanced Technologies Access to GM veide collision mgar information is tree Go to WA CETLIIER TATE oon foe detwa CONTENTS GM OE Parts Update 4 Business of Repairs g The latest word on product New ideas that can benefit development and technologies how your shop operates and profits i The Technical Side Discover new ways to approach _ Se service and repairs Genuine GM REWARDS Genuine AM Parts GM Servicelnsights Online More Genuine GM Parts mE resources and links a Download this issue and past issues of GM Servicelnsights magazine at www gmserviceinsights com GM Servicelnsights Headquarters 2604 N E Industrial Dr 230 N Kansas City MO 64117 Email dealersupport proactgroup com Compliments of your GM dealer We invite your input and suggestions Please address letters to the editor to the above address Letters submitted imply the right to edit and publish Every effort is made t
12. If the Theft Deterrent Module TDM and ECM are replaced at the same time or if during service the theft deterrent becomes unsynchronized the theft deterrent must be synchronized in order for the vehicle to start 7 TECHCONNECT Depending on the state of the theft deterrent the vehicle may have a no crank no start condition or a crank start and stall condition If the ECM and TDM are replaced at the same time reinstall the original ECM or the original TDM if possible Communication must be established with the original ECM or TDM Next service program the original module ECM or TDM and perform a 10 minute Vehicle Theft Deterrent learn If it is still necessary to replace the ECM or TDM replace it At this time the ECM or TDM and key are synchro nized Service program the new ECM or TDM and perform a 10 minute Vehicle Theft Deterrent learn If neither the original ECM nor TDM is available or will not communicate it will be necessary to also replace the ignition keys If you attempt to program the new ECM or TDM using the original ignition keys and the vehicle will not start check the Manufactures Enable Counter in the TDM ID information If the Manufactures Enable Counter display is blank the TDM has been programmed If the counter reads a value other than zero the TDM needs to be programmed Product Information For free technical assistance and product information regarding specific ACDelco products co
13. MILs illuminated e Transmission shifts hard e Door locks cycle while driving The diagnostic system check may reveal that one or more DICs are stored The TCM or ECM may not communicate with the scan tool The cause may be unseated pins in the transmission connector Inspect the transmission connector X1 terminal connections Disconnect the connector and carefully tug on each wire to ensure the pins are fully seated A side load on the wires may cause a false positive lock Repair the connec tions as necessary Cold Engine Tick Noise 2009 2013 Cadillac Escalade models 2009 2013 Chevrolet Express Silverado Suburban 2009 2013 GMC Savana Sierra equipped with a 6 0L or 6 2L V8 engine RPO L76 L96 LY6 L94 L9H A cold engine tick noise may be heard on these vehicles The noise will diminish within 50 seconds of a cold start The noise shuts off like a switch was flipped This condition may be a vehicle design characteristic as the ECM cali bration is designed to meet cold start emissions The noise that is heard is actually combustion taking place in the exhaust manifold When the timer hits the 50 seconds it advances the timing and the noise is immediately gone Be sure to determine if the tick noise is possibly coming from the exhaust manifold as the noise could easily be mistaken for an engine tick noise Programming the Vehicle Theft Deterrent 2006 2013 Chevrolet Impala 2006 2007 Chevrolet Monte Carlo
14. adjustment be sure there is nothing about the vehicle s condition or equipment that could contrib ute to a misalignment condition Things to consider include Wheels and Tires Verify that wheels and tires are original F equipment or the correct size for the vehicle application Slight feathering on the shoulders of tires is not considered unusual tire wear Suspension Verify that the vehicle suspension has not been altered including INTHISISSUE the addition of an aftermarket suspension lift or lowering kit Measure ride height to IN THIS ISSUE help identify any worn components The Reasons for Wheel Alignment 1 Vehicle Damage Check for evidence of accidental damage that could affect alignment Look for subtle items like scuffed wheels or tire sidewalls which may The Job of Magnetic Drain Plugs indicate curb damage that can affect alignment l l New Chevy HHR Interior Door Handle Kit 3 Added Equipment Check for equipment that may significantly affect vehicle mass such as large tool boxes snow plows and campers Significant additional Absorbent Glass Mat Batteries 4 mass can affect the trim height and wheel alignment of the vehicle Upfitters are Tips for Successful Brake c am lee 5 instructed to realign the vehicle after installation of these types of items It is important to gather as much information as possible to understand the ACDelco Diagnostic Aun customer concern and to
15. as a dead battery and the cargo area cannot be opened It Is OK to charge or jump start the vehicle from the remote access area under the hood as long as 40 amps is not exceeded by the charging device Thanks to John Munsell ASE Test Prep Study Guides Available ASE test prep study guides are available through the ACDelco Learning Management System LMS on www acdelcotraining com The study guides cover the Automotive Tests A1 A8 the Service Consultant Test C1 Compressed Natural Gas Vehicle Test F1 and Exhaust Systems Test X1 To access the study guides perform a catalog search on the ACDelco LMS Select Course Name contains ASE and the Course Delivery Type of Self Study To register for ASE tests go online to www myASE com or call the ASE testing partner Prometric at 1 977 346 9327 Thanks to Greg St Aubin We Support Voluntary Certification National Institute for AUTOMOTIVE SERVICE EXCELLENCE www ase com 4 TECHCONNECT Tips for Successful Brake Service The keys to a successful brake service involve making the right call on rotor refinishing cleaning all components and proper assembly The result a brake service that leaves the rotors with plenty of life and without unacceptable noise Brake Noise Some brake noise is normal and differences in loading and driving style can affect brake wear Inspect all metal to metal contact areas between pads pad guides calipers and
16. ca calling the first 10 minutes for any new PSC GM OEM Service Informati n account are free Thanks to Jill Brown 2013 ACDelco Fluids and Chemicals Catalog Now Available The new catalog includes a Service e Carb Choke Cleaner Event Quick Reference Guide that highlights common automotive service events such as engine service brake e Fuel System service drive line service and the associated ACDelco fluid and chemi e Diesel Exhaust Fluid e Lubricants Greases 2013 ACDelco Fluids cal products It also features a section e Motor Oils and Chemicals Catalog on GM Recommended Fluids at GM e Paints Recommended Intervals which pro vides information about the uses of a e Power Steering Fluids variety of ACDelco fluids and lubricants e Sealants The catalog covers a variety of fluids e Transmission Fluids and chemicals including Additional hard copies of the catalog e Adhesives VC CA 0304 12ACD can be ordered e Air Conditioning through the ACDelco e Store at acdelcoestore com e Antifreeze Coolants Electronic copies of the catalog e Appearance VC CA 0304 12E and oil supplement ACDelco has recently released e Axle Lubes Fluids 10 SU 0305 12E also can be down the new 2013 ACDelco Fluids and EE loaded from the ACDelco e Store Chemicals Catalog item number Thanks to Don Vogrin VC CA 0304 12A e Brake Cleaners and Fluids 6 TECHCONNECT TechTips v The following technical tips provid
17. e repair information about specific conditions on a variety of vehicles If you have a tough or unusual service repair the Diagnostic Hotline can help Call 1 800 825 5886 prompt 2 from 8 a m to 8 p m ET Monday Friday to speak with a technical expert with the latest OEM information Installing the Rear Window to the Window Regulator Assembly After removal of a rear door window or rear window regulator on 2008 2012 Malibu 2008 2009 G6 and 2007 2009 AURA models the retaining pins may be difficult to reassemble in the door Follow these steps to reinstall the window glass to the regulator 1 Remove the window from the door 2 Position the window glass retaining pin in the window hole Make sure the pin is centered in the opening 3 Press the expansion pin back into the retaining pin This will lock the pin into position in the window 4 Reinstall window into the door 5 Push the window and pin down into the groove of the window regulator A loud audible snap should be heard which confirms the window assembly is properly seated in the window regulator assembly No Crank Transmission Shifts Hard 2013 Cadillac ATS 2008 2013 Cadillac CTS 2007 2009 Cadillac SRX 2006 2011 Cadillac STS equipped with a 6 Speed Automatic Transmission One or more of the following conditions may be present e Service Engine Soon light on e Reduced power e The vehicle will not crank over no start e Multiple warning
18. e to replace only the door handle an economi cal alternative to the previous handle replacement strategy Door handle kit The interior door handle replacement kit installs quickly and Is less likely to compromise trim panel integrity and cosmetics than the alternative repair methods The kit is available for right hand doors part number 19299613 and left hand doors part number 19299614 Other aftermarket products may call for replacing the modular designed door handle pocket with a new one which involves drilling away the melted area of five plastic stakes that attach the handle pocket to the trim panel assembly removing the entire pocket and attaching the new assembly by gluing metal trim screws Into the heat staked plastic areas The pocket assem bly on the HHR door is not designed for removal and the addition of trim screws in the heat staked plastic studs may leave marks on the trim panel s exterior surface The interior door handle replace ment kit involves a simple three part 3 TECHCONNECT 4 Interior trim panel kit a door handle pin and spring After removing the interior trim panel pull the pin to remove the damaged handle The new handle pin and spring are installed into the modular door handle pocket This quick and easy repair makes the new HHR inside door handle kit more economical than replacing the entire door panel Thanks to Rick Balabon Absorbent Glass Mat Ba
19. fer cases are designed to attract metallic particles generated during normal operation and prevent them from passing through the gears or bearings During service repairs and mainte nance inspect the drain plug for large metal deposits Small metal flakes and fine metal dust on the plug magnet are considered normal Normal amount of debris on a drain plug Large metal deposits or particles on the plug magnet such as gear teeth bearing fragments and large metal shavings are not a normal condition If these conditions are found repairs may be needed to prevent further component damage An abnormal amount of debris with large metal shavings on a drain plug What to Look For When inspecting metallic particles on a plug magnet It s important to determine the size and source Fine Metal Particles Fine metal particles are normal and are the result of internal component wear which can shed fine metallic particles at a steady rate Metal Shavings Metal shav ings which are often remnants from the housing machining process may adhere to the plug magnet These shavings are not detrimental Fine metal particles to component operation and do not require component replacement Bearing and Gear Teeth Fragments Fragments from bear ings and gear teeth indicate compo nent damage that is not considered normal Components should be inspected for damage and repaired as needed Fluid Conditions
20. had to position the existing boss that was used for the LS1 back to where it was Tumia says Vacuum lines also had to be rerouted a challenge he Says because the conversion entailed going from a return to anon return system It would recycle through the fuel pump and not back to the engine so we had to modify the fuel return line to make that fit he says Radiator hose configurations also posed a challenge With the water pump inlets and outlets in different spots on the radiators in the LS1 and LS3 Tumia had to devise a custom ized fix that would work in the new engine configuration July Sep 2013 Servicelnsights 9 kendal i BUTOR N i a A customer s 97 Vette gets an LS3 upgrade at Corvettes of Auburn Auburn Wash amp EF 1 Tumia also encountered some issues with crankshaft positioning The crank trigger which with the help of the power control module reads the crankshaft position was different on the LS1 The crankshaft position gear in the LS1 has different amount of teeth on it than the LS3 so using the LS1 PCM we needed a go between that would divide out the number of teeth on the wheel so the LS3 computer could read it he says Moving from a stock throttle body on the LS1 to a larger one for the LS3 presented another challenge The on board computer in the LS3 Tumia says was detecting way too much air so we had to consider that when we remapped the PCM In the end
21. harge for preliminary 1 Gr trucks Call the ACDelco Diagnostic information The clock starts when ESI Hotline for help you Start troubleshooting with the technical expert For particularly difficult With their new Flat Fee Unlimited Call l i l issues you can request schematics via option technicians can call regarding a fax or email repair on one vehicle as many times as needed Plus the ACDelco Diagnostic The experts at the ACDelco Hotline still offers the economical per Diagnostic Hotline can offer live assis minute call rate tance on any service issue These Unlimited Calls for 35 pa OE e Are specialists by make all makes Additionally if you desire to re bill eee TA pat and models your sistem oe may request an Unlimited Call option is available for ok 35 per case After the first call all e Have an average of 25 years en for the e of the call including additional calls on the vehicle are free service experience salons eee ata citer ye until the case Is closed e Are continually updated with the In addition to the flat fee option latest training on new systems and The ACDelco Diagnostic Hotline can ACDelco Professional Service Centers components be reached at 1 800 825 5886 prompt PSC still can choose to receive the R oe Provide your ACDelco Professional Have the latest factory information Service Center six digit account number discounted call rate of 2 85 per minute available including direct access a
22. l Classroom Training to view the catalog and select a specific course e To launch a Web Based Training WBT course WBTs are 1 4 hour self guided online courses click Take Training gt Web Based Training to view the catalog and select a specific course e To launch a TechAssist TAS course TAS courses are 15 20 minute online presentations on a specific topic click Take Training gt TechAssist to view the catalog and select a specific course Bi Fuel System Operation GM Safety Systems 3 e To launch a Simulation SIM SIMs require users to complete all repairs for a condition click Take Training gt Simulations to view the catalog and select a diagnostic challenge simulation Training Schedule To search for currently sched uled courses In your area view the Training in Your Area section on the Home page Select search terms trom the dropdown menus and click the Submit button Current Instructor Led Training Courses The following ILT courses are currently being scheduled Course Number S AC07 02 01ILT S ACO7 03 01ILT S BK05 01 01ILT S BK05 02 01ILT 9 D 11 13 01ILT S EL06 04 02ILT S EL06 10 02ILT S ELO6 11 02ILT S ELO6 13 01ILT S EL06 14 01ILT Course Name Automotive Air Conditioning Advanced Refrigerant System Diagnostics HVAC Control System Operation and Diagnostics Braking Systems ABS Operation and Diagnosis Vehicle Network Communications When modules talk who is really listeni
23. m thick ness specification Do not refinish new rotors If refinishing is required verity the lathe equipment is properly calibrated After completing the refinishing create a non directional finish on the rotor by sanding both sides of the rotor using a sanding block and 130 150 grit Sandpaper for about one minute per side Cleaning Brake Rotors after Refinishing GM now recommends washing brake rotors with soap and water after refinish ing It has been determined that soap and water such as a mild dish wash ing soap is more effective in cleaning rotors than using denatured alcohol or approved brake cleaner If the brake rotors are not thoroughly cleaned after refinishing brake squeal or other noises may occur due to residual steel particles finite metal dust left as a by product of the refinishing process being present on the brake rotor Before reassembly clean all brake corner mating surfaces including the hub rotor and wheel Wheel Torque Inappropriate wheel torque methods may cause the wheel and tire assem Index the tire and wheel assembly use an appropriate torque pattern and torque the lug nuts to spec using a torque wrench 5 TECHCONNECT bly to be offset when mounting which creates vibration similar to a tire with high Radial Force Variation or a tire with an imbalance Improper torque also may cause brake rotor distortion and result in wheel mounting variance causing smo
24. ng Network Communication Diagnosis Electrical Power Management Enhanced Automotive Circuit Diagnosis Body Electrical Global Diagnostics Advanced Body Control System Electrical Diagnostics Course Number S EL06 16 01ILT S EP08 02 01ILT S EP08 03 01ILT S EP08 04 01ILT S EP08 06 01ILT S EP08 08 02ILT S EP08 09 01ILT S EP08 81 02ILT S SS04 01 01ILT 8 TECHCONNECT Course Name Hybrid Vehicle Service and Safety Batteries Included Engine Performance Computer Controls and Ignition System Diagnostics Engine Performance Air Induction and Fuel System Diagnostics Engine Performance Fault Monitoring and Emission System Diagnostics After Combustion Sensors Is what is in the exhaust making your engine run rough Evaporative Emissions Controls Why is there always a code but never a leak we can find Spark Generation Is a lack of spark sending you up in flames Duramax Diesel Operation and Diagnosis Vibration Correction Diagnostics Genuine The Technical Side cont d Even though the 2014 Impala is a new vehicle service and repair information resources are a click away at www gmtechinfo com Electronic Service Information Technicians and shop owners can log on to the site to gain access to subscription services for service procedures and repair manuals A complete Service Manual is accessible 24 7 through a subscription to the site Free collision repair procedures will soon be available for
25. ntact these toll free information hotlines staffed by ASE certified technicians Brakes 1 888 701 6169 prompt 1 Chassis 1 888 701 6169 prompt 2 Clutches 1 888 725 8625 Lift Supports 1 800 790 5438 Shocks 1 877 466 7752 Starters and Alternators 1 800 228 9672 Steering Pumps Rack and Pinion Gears 1 866 833 5567 Wiper Blades 1 800 810 7096 Training Update 2013 Training Course Catalog Available The 2013 ACDelco Training Course Catalog is now available The catalog provides course descriptions for ACDelco Web Based Training WBT courses Instructor Led Training ILT courses and Seminars SEM along with related training in Self Study Training SST Tech Assist TAS and Virtual Classroom Training VCT formats New Courses Technical course categories include AO A1 Engine Repair A2 A3 A4 Ab AG A7 A8 Manual Drivetrain and Axles Suspension and Steering Brakes Electrical Electronic Systems Heating and Air Conditioning Engine Performance Fundamentals Emerging Technologies Automatic Transmission Transaxle Business training includes e Service Consultant Skills e Customer Satisfaction Process e Financial Management e Marketing Download the 2013 ACDelco Training Course Catalog by visit ing www acdelcotechconnect com and clicking the Training tab or log ging in to the ACDelco Learning Management System LMS The latest ACDelco training cour
26. o ensure the accuracy of the information in the offers contained in this magazine However printing and typographical errors may occur These are not intentional and are not the responsibility of GM any dealer or the companies or individuals who ae create produce and distribute this magazine Offers We Support Voluntary Certification and pricing may change at any time without prior National Institute for notification The descriptions and specifications in this AUTOMOTIVE SERVICE EXCELLENCE publication were in effect at the time of approval for printing General Motors reserves the right to change WWW ase com specifications without notice and without obligation Published letters do not necessarily reflect the opinions of General Motors or General Motors Parts General Motors Detroit MI 48202 2013 General Motors All rights reserved PA July Sep 2013 Servicelnsights GM Parts Powertrain Triple Play Designed around you overPOWER Conquest pricing on many engines and transmissions genuinegmparts com y Genuine y GM Rewards Rewards on your eligible GM Powertrain Parts purchases genuinegmrewards com d RepairLink with MORE Save time ordering GM OE parts online oeconnection com Genuine REWARDS Genuine GM Parts why settle for less GenuineGMParts com Genuine amp M Parts July Sep 2013 Servicelnsights E TI so gt for a J
27. ob Genuine GM Parts Torque Converters the clutch C a N ia ot E ate hast ranan tA IVvid La DL icat idilat LLU nrovent nverhea O Ji lil UVOTITIICC t J fuel economy Torque converters used in GM vehicles are an especially high tech breed built for the rigors of a demanding job What sets them apart is GM s Electronically Controlled Capacity Clutch EC for short incorporates special friction material that allows the converter clutch to continuously Slip at low speeds That delivers smoother shifting at a wider range of speeds better fuel economy and less wear and tear Just as EC is a smart technology the intelligent choice for changing out a torque converter in a GM application is a Genuine GM Parts replacement assembly that uses EC Competing products simply don t stack up Typically the friction materials they use notably Kevlar generate excessive heat and don t deliver the same smooth slip produced with the GM EC torque converter That material is durable but the heat it generates degrades transmissions and it grabs when it engages leading to noise vibration harshness issues says Chris Thomas GM Customer Care amp Aftersales GM CCA product development manager for transmissions While there s a big gap in performance the issue of heat buildup is critical from a durability and longevity Standpoint In addition to using materials that produce 4 July Sep 2013 Servicelnsights
28. olyte replenishes itself The battery does not have any vent plugs It may have up to six vent relief valves that allow the small amount of gas that is produced when charging to escape Testing and Charging Testing and charging the AGM battery is different from regular lead acid batteries When using any battery charger check that it is set up properly to charge an AGM battery including selecting the proper battery type AGM setting and CCA during charger set up Selecting the wrong type of battery and CCA could cause misdiagnosis and or overcharging of the battery which could lead to inadvertent battery replacement or battery damage The time required to charge a battery will depend upon the battery charger capacity the state of charge of the battery a discharged battery with a voltage below 11 volts will have a very high internal resistance and may only accept a very low current at first the temperature of the battery and battery capacity Use a taper rate charger that reduces the charging rate as the battery approaches full charge then stops the charge or switches to a float charge status when full charge is reached In addition when load testing an AGM battery make sure to connect the tester directly to the battery and not to the remote connection under the hood When charging it is recommended to connect the charger directly to the battery if the battery is accessible If the bat tery is not accessible such
29. or LCV Engine if equipped Install the generator 2 into position and tighten the fasteners 1 to 22 Y 16 Ib ft Install the generator lower mounting fastener 2 and tighten to 22 Y 16 Ib ft Install the air cleaner outlet duct Refer to Air Cleaner Outlet Duct Replacement Install the battery positive cable 3 to the back of the generator and tighten the fastener 2 to 15 Y 111b ft Install the protective boot 1 and connect the engine wiring harness connector 4 Install the drive belt Refer to Drive Belt Replacement Install the secondary air injection pump inlet hose if equipped Refer to Secondary Air Injection Pump Inlet Hose Replacement These examples of Starter and Generator Replacement for the Ecotec 2 5L l 4 engine LKW in the 2014 Impala are just two of many found in their Service Repair Manuals By following the proper repair procedures technicians can ensure that each vehicle maintains its solid performance and uncompromised safety features for the life of the vehicle Genuine aij Parts The Business of Repairs Dynamic Duo Delivers Chevrolet Performance Parts Helos Washington Vette Specialist Resurrect Classics When a 1997 Corvette owner started feeling a little power and status starved with his well worn stock LS1 engine his instincts brought him to the right place Two of them actually Corvettes of Auburn and Chevrolet Performance For folks in
30. oth road shake vibration For proper wheel installation index the tire and wheel assembly at least two stud positions from the previous position Tighten the wheel lug nuts using an appropriate torque pattern With all lug nuts snug lower the vehicle until there is enough contact to provide resistance and complete the torque to specification using a torque wrench Do not use torque sticks or an impact driver to tighten the wheel lug nuts Brake Pad and Rotor Burnishing Burnishing the brake pads and rotors helps to ensure that the braking sur faces are properly prepared after service has been performed The burnishing procedure should be performed whenev er the brake rotors have been refinished or replaced and or whenever the brake pads have been replaced 1 Select a smooth road with little or no traffic 2 Accelerate the vehicle to 30 mph 3 Using moderate to firm pressure apply the brakes to bring the vehicle to a stop Do not allow the brakes to lock 4 Repeat these steps for approximate ly 20 stops Allow sufficient cooling periods between stops in order to properly burnish the brake pads and rotors Thanks to Rick Balabon Professional Service Center ACDelco Diagnostic Hotline Offers New Flat Fee Option Have a tough or unusual service Making the call to the ACDelco repair on any make or model foreign Diagnostic Hotline is easy and hassle or domestic including medium duty free There is no c
31. s magazine are subject to change Submission of materials implies the right to edit and publish Inclusion in the publication is not necessarily an endorsement of the individual or the company TechConnect is published for ACDelco by Sandy Corporation Troy MI 2013 ACDelco All rights reserved The Reasons for Wheel Alignment continued from page 1 Plus always ensure tire pressures are set to correct specifications before and after evaluating a vehicle Alignment Settings Front or rear toe values being out of specifications do not cause an otherwise true vehicle pull If only front or rear toe values are out of specification on a vehicle with a confirmed pull issue something else is causing the pull Steering Calibrations Electronic Power Steering EPS steer ing position and torque sensors that are not calibrated correctly may cause a lead or pull condition Prior to any measurement on an alignment machine confirm the cur rent specifications and tolerances in the appropriate Service Information Do not assume the numbers in the alignment machine are correct and up to date The vast variation in speci fications depending on the type of vehicle and tire suspension and engine options makes it easy to use the wrong wheel alignment specs It is possible for customers to confuse a steering wheel off angle i dn 4p Pt Pe a its ah idee iy j 3 all ir ea M rel a Pie od
32. ses cover many different topics ranging from HVAC systems to bi fuel systems and electrical sys tems Some of the new course releases include Course Number Course Name S AC0O7 08 02WBT S AC07 09 02WBT HVAC Systems and Operation Stage 1 HVAC Systems and Operation Stage 2 Course Number S EP08 08 02ILT S D 11 11 01SEM Beyond the Four Strokes What do you do when nothing you see is wrong but something is broken S EP08 09 01ILT Course Name Evaporative Emissions Controls Why is there always a code but never a leak we can find Spark Generation Is a lack of spark sending you up in flames S ELO6 52 02WBT How to Take ACDelco Training Go to www acdelcotechconnect com and click the Training tab to log in to the ACDelco Learning Management System LMS e To enroll in courses in your training path open the home page to view your Training Progress Status Report select Click Here to Show Detail and then click the course number and title to view details on a spe cific course and to launch or enroll in the course e To enroll in an Instructor Led Training ILT course ILTs are full day hands on classroom courses click Take Training gt Instructor Led Training to view the catalog and select a specific course GM Global Electrical Systems S EP08 29 01WBT S FNO0 07 01WBT e To enroll in a Virtual Classroom Training VCT course VCTs are 1 2 hour live online courses click Take Training gt Virtua
33. tegically to other areas of the vehicle This mass savings allowed engineers to add a front strut tower reinforcement to improve structural feel Those strut towers are home to a MacPherson strut front suspension design that delivers a greater measure of control with rebound springs that are internal to the struts An isolated front cradle for the engine and transmission as well as a hydraulic ride bushing help deliver a smoother quieter ride At the rear is a proven four link suspension design with a slightly wider track that contributes to the Impala s more planted feel on the road Isolated mounting provisions for the rear suspension also contribute to the car s quiet smooth driving experience Intake Valve Lift Control Delivering optimum airflow on demand to maximize fuel economy e HIGH LT iiimmm In HIGH LIFT position maximum airflow s delivered when needed for heavy acceleration A new engine vale technology on the 2014 Chevrolat Impala helps improve fuel tinim In LOW LIFT position airflow is controlled to deliver just what is needed for normal driving ACDelco FE CONAH The Reasons for Wise AJI With freezing winter weather and a wet spring in many parts of the country that played havoc on road conditions many customers may be concerned about the wheel alignment of their vehicle Before performing a steering wheel angle front toe set or wheel alignment check or
34. the Seattle area and beyond wanting to spruce up and juice up their Corvettes or other prized set of wheels there are few destinations better primed to deliver than Corvettes of Auburn Operating out of the Seattle suburb of Auburn for the last 20 years Dan Tumia owner has built a reputation across the Pacific Northwest as a man to See for quality restorations and repowering Chevrolet Performance a brand Tumia is well versed in was the owner s second great call Staying in the GM family he selected an LS3 376 480 Hot Cam engine as the successor to his LS1 which had faithfully logged some 130 000 miles The combination of the powerful small block V 8 engine combined with Corvettes of Auburn s expertise in handling the trickiest repowering jobs proved to be a winner Today that owner has the best of both worlds a priceless C5 Corvette whose stock LS1 broke new ground when it was new now fully up to date under the hood with today s State of the art premium Corvette engine He wanted more power and the drive train beefed up with new and improved parts Tumia says The LS3 Hot Cam crate performance motor comes with everything from fuel injectors to the oil pan but without some of the bolt on hardware on the front like the serpentine belt and the alternator For the most part most everything from the original LS1 transferred easily over to the LS3 One challenge was relocating the knock sensors On the new engine we
35. the vehicles by going to www genuinegmparts com Starter Replacement for the Ecotec 2 5L l 4 engine LKW 2014 Impala Removal Procedure Disconnect the battery negative cable Refer to Battery Negative Cable Disconnection and Connection Remove the secondary air injection pump if equipped Refer to Secondary Air Injection Pump Replacement Raise and support the vehicle Refer to Lifting and Jacking the Vehicle Disconnect the engine harness connector 3 from the Starter solenoid Remove the battery positive cable fastener 2 and remove the battery positive cable terminal 1 from the starter solenoid Remove the starter mounting fasteners 2 and remove the starter 1 Installation Procedure Caution Refer to Starter Motor Alignment Caution Caution Refer to Fastener Caution Install the starter 1 and torque the top fastener 2 to 22Y 16 Ib ft then torque the bottom fastener 2 to 22Y 16 Ibft Install the battery positive cable terminal 1 to the starter solenoid and tighten the fastener 2 to 10 Y 89 bin Install the engine wiring harness connector 3 to the Starter solenoid Install the secondary air injection pump if equipped Refer to Secondary Air Injection Pump Replacement Connect the battery negative cable Refer to Battery Negative Cable Disconnection and Connection WE VE GOT ALL THE PARTS YOU NEED TO DOIT RIGHT THE FIRST TIME a If you re
36. tomers will have the torque converter that more reason to choose the OE product unquestionably delivers the performance and durability Priced to be more competitive with aftermarket products demanded of this essential vehicle component All New 2014 Impala The 2014 Impala is new from the ground up and represents the 10th generation of one of the industry s most enduring and popular nameplates Three Powertrain Options Powertrain Highlights All with Six Speeds E Output for the 3 6L V 6 is rated at 305 horsepower 227 kW and 264 Ib ft of torque 358 Nm That is the highest horsepower output in the segment from a naturally aspirated V 6 engine The three powertrain options each feature fuel saving direct injection and lightweight components They include E The Ecotec 2 5L is part of a new family of four cylinder engines developed the 3 6L V 6 the new Ecotec 2 5L four with increased efficiency and greater refinement It is rated at 196 horsepower cylinder and the Ecotec 2 4L with eAssist 145 kW and 186 Ib ft 253 Nm of torque NAA lennnvl ep mi Imnnonin U I4 ITripaia a CA 5 Tg Le Dt eee E Y gt 1IAINKNIN cido hlinni z nno nlor ron ure warning side Olinda zone alert reali i ey a E se lA St ees ol aig silda That rornre Ar nT f TE mera and rear park QSSISt ACDelco TECHCONNect SPECIAL INSERT The Technical Side cont d E impala s Ecotec 2 4L engine with eAssist
37. tteries Up until the Absorbent Glass Mat AGM battery was introduced automotive starting batteries always contained lead plates submerged in liquid electrolyte The AGM battery eliminates the need to immerse the plates The result is a battery that is lighter a critical aspect with today s increas ing focus on fuel economy for the amount of power it can produce It s also more durable in many applications and has extended life when compared to a traditional tlooded cell battery Currently an AGM bat tery is standard equipment in the Chevrolet Volt and Cadillac ATS ACDelco offers an AGM battery for many applications as well as a spe clal EREV Extended Range Electric Vehicle AGM battery for the Volt The AGM battery may be used in place of a conventional battery Just be sure to match the Cold Cranking Amp CCA and Reserve Capacity ratings Inside the Battery The AGM battery has a lifetime supply of electrolyte in its absorbent glass mat fiberglass separators that are held in contact with the lead plates The chemical reaction that takes place between the sulfuric acid in the electrolyte and the lead oxide in the lead plates create the electrical flow The sealed AGM battery also uses gas recombinant technology that causes the hydrogen and oxygen byproducts two natural byproducts that are produced when water in the electrolyte decomposes during charging to convert directly back into water so the absorbed electr
Download Pdf Manuals
Related Search