Choosing the Right Spark Plug
Contents
1. SERRE EEE HAH ENETENNENI FH TIT T Li i E i Inne Spark plug Conventional spark plug R457TS is design specifica identified as tions and perfor l mance vary widely i J ee depending on each E Thre application Using 5 Hees the correct spark 7 Pane plug for the engine To ko application is 7 cua critical to proper operation Bs Tip When selecting the right spark W we plug for an engine SUT NC ane sometimes manufacturers must consider many factors that affect plug performance such as heat range conventional or precious metal extended length insulators tapered combined to further define the plug s identification Conventional spark plug continued on page 2 IN THIS ISSUE electrodes and gap size All of these features are addressed by the wide range Choosing the Right Spark Plug of available ACDelco spark plugs Oil Life Part 2 _ 3 2 New Suspension Seminar Covers Numbering System g gt y Basics Latest Technology 4 ACDelco precious metal spark plugs platinum and 9008 Annual MACS Convention 4 iridium use an all numeric identification code The l O numeric code does not correspond to the heat range of National TSS Advisory Council Meeting 5 ia the plug as It does with conventional spark plugs This ACDelco Partners with ASE 5 A numbering system was developed to avoid any2. products are discussed One com parison looks at ACDelco ball joints which are designed with a permanently attached boot a full ball stud and patent ed two piece cylindrical wedge bearing and a one piece forged housing Electronic Systems The seminar also delves into the variety of electronic suspension sys tems available on vehicles today This includes information about the how and why behind typical electronic systems such as Selectable Ride Automatic Level Control Air Suspension Computer Command Ride Real Time Damping and Road Sensing Suspension and Vehicle Stability Enhancement System In addition the seminar provides details about controlling all of these electronic components explaining the roles of various Inputs and outputs to the system control modules These sensors and inputs include e Shock strut position sensors e Steering wheel position sensor e Lateral accelerometer e Yaw sensor e Driver select switch for suspension settings e Vehicle wheel speed sensors e Actuated dampers e Suspension control module e Suspension level sensor An in depth look at two systems pro vides additional details about electronic controls of the suspension and related components The VW Jetta s Continental Teves Electronic Suspension operates 2008 Annual MACS Convention The annual Mobile Air Conditioning Society MACS convention and trade show will take place January 30 February 2 at Walt Disney World
3. connections in this connector for integrity Inspect female terminals for pin drag The male terminal should be fully seated in the body cavity of the connector Be certain that no terminals are bent or damaged in any way Re route the harness to prevent future harness and or connector strain When servicing this connector be careful not to damage other terminals Fully seat the connector squarely with both hands and then latch the locking portion of the connector CPA Do not use the lock mechanism on the connector to pull the connector halves together as this may cause terminals to bend or make a poor connection Strut Leak A front sus pension strut oil leak can result if the strut center rod nut is used as a connection for the ground cable when jump starting a vehicle The investigation by GM engi neering was conducted on damaged struts from Saturn VUE Chevrolet Equinox and Pontiac Torrent models Damaged chrome plating An electric spark between the rod guide and rod can damage the chrome plating which in turn damages the oll seal contributing to oil leakage The remote positive terminal prominently identified in the color red is located at the UBEC on the left side of the vehicle The center nut of the nearby Strut Is a tempting and convenient place to connect the ground cable DO NOT use the strut as a ground when jump starting a vehicle In the case of the VUE Equinox and Tor
4. protec gx In the Beginning tion wear lt oms protection low e p Straight mineral oil is not an ideal temperature EIA lubricant in an engine A number of performance additives are needed to give the oll and energy properties it does not naturally have or to enhance Its natural properties These additives include e Viscosity modifiers to keep the oil the proper thickness over a wide range of operating temperatures e Anti oxidant agents to keep the oil from thickening e Corrosion inhibitors to protect engine components e Anti wear agents to prevent metal to metal contact between parts e Detergents and dispersants to suspend solid particles and mini mize sludge buildup The oil used in modern engines Is a far cry from early engine oil In 1911 the Society of Automotive Engineers SAE developed a system that classified engine oils by viscosity only The classification system that we know today got its beginnings in 1947 when the American Petroleum Institute API designated three types of engine oils regular straight mineral oil premium oil plus oxidation inhibitors and heavy duty oil plus oxidation inhibitors and detergent dispersant additives By 1970 a new classification system would be established to identify the changing maintenance and lubrication requirements of the automotive indus try The SAE and API identified eight engine Service Categories with S des ignations for passenger car e
5. published bi monthly for retail technicians to provide timely service information increase knowledge and improve the performance of the TSS service center Publisher Dennis Kissack ACDelco E mail lt 2 dennis c kissack gm com Editor Mike DeSander ACDelco E mail lt mike desander gm com Technical Editors Mark Spencer E mail lt mspencer gpworldwide com Jim Horner E mail lt jhorner goworldwide com Production Manager Marie Meredith Desktop Publishing Supreme Graphics Inc E mail lt supremeinc supremeg com Write to DX ACDelco TechConnect PO Box 500 Troy MI 48007 0500 On the Web To read and search recent issues of TechConnect online Go to acdelcotechconnect com click on Training Log on to ACDelco LMS click on Resources Click on TechConnect Magazine Online ACDelco service tips are intended for use by professional technicians not a do it yourselter 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 tech nicians have the equipment tools safety instruc tions 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 vehi cles or that all vehicles will have that condition All materials and programs described in this magazine are subject to cha
6. 10 zones in the country on ACDelco s plans for marketing e business and training In these areas ACDelco is working toward an improved scholarship program and an association with ASE In addition new training classes both on the web and instructorled are being developed Further enhancements are also in the works for ACDelco e business initiatives WIP WISE and TIS2Web Another aspect of the future increasing competitiveness in the aftermarket was highlighted during the meeting with presentations from Paul Johnson General Director Global Independent Aftermarket and Brent Snelson U S Director Independent Aftermarket on how global operations impact the United States Council Recognition ACDelco recognized three outgoing TSS Advisory Council members for the valuable input they have provided in the growth and success of the TSS program They are Mark Hyde of Hyde Auto Service Oklahoma City Okla Bob Wills of National TSS Advisory Council Looks to the Future Recognizes the Past Wills Auto Service Battle Creek Mich and Dave Christopher of Christopher s Car Care Tallmadge Ohio Four new members of the TSS Advisory Council are Rob Abbott of Abbott s Auto Care Lexington S C Rick Jindra of Dependable Automotive Binghamton N Y Bob Stout of Fuerst Automotive Cleveland Ohio and Kay Wynter of Terry Wynter Auto Fort Myers Fla The TSS Advisory Council also recognized the efforts of ACDelco with th
7. also provides service tips and information needed to maintain the warranty on installed parts The product information covers seals compressor lubrication leak detec tion dyes filters screens and flushing How many cavities Select One v Gender Male Female Not sure To access the wiring sockets and pigtails search tool or the A C technical product information go to acdelcotechconnect com and click on the Automotive Systems tab and the Product Information link Thanks to Bob Stewart Wiring sockets and pigtails search tool Bulletin Categories Service bulletins provide the latest information on a lot of different subjects Keeping track of them all can be quite a job Here is a list of the current bulletin cate gories found in the GM Service Information Informational bulletins convey information about a particular subject and include instal lation information repair tios for use of tools adhesives etc new parts information and more Service Manual Update SMU bulletins are published when a very significant change has been made to a procedure in the Service Information after the printed service manual is available Technical bulletins address the 3 Cs complaint cause and correction They provide specific repair instruc tions and contain necessary parts and labor operation information Field Product Reminder bulletins are published monthly They provide a Summary of
8. confusion DuraStop Caliper Label Indicators 5 between precious metal plugs When replacing a precious New Product Informe metal plug it is not recommended to select a plug with a S h Tool 6 gr different code number earc A PP a aaa aaoo Bulletin Categories see 6 For example spark plug 41 806 can be identified as i AA PARRE New ACDelco Silicone Brake Lubricant 6 41 ACDelco product line 41 is the spark plug line 7 B06 15201 pakpi tee Tips aa COC a i Eo Winter Maintenance Top 10 8 JZ o a AR ee The Training Update m 8 600 699 Resistor 800 999 Double Platinum Exception 41 985 Is an iridium plug Double platinum spark plug ON THE WEB acdelcotechconnect com go to Training Log on to ACDelco LMS go to Resources TechConnect Magazine Online RAPIDFIRE spark plugs use a modified identification code that features a simple numbering system of numbers 1 12 and 14 For ACDelco conventional spark plugs the prefix and suffix letters identify a specific type of plug The numbers relate to the thread size and heat range Choosing the Right Spark Plug continued from page 1 The first number denotes thread size and the second number indicates heat range Thread sizes are 4 14mm 8 18mm 10 10 mm 12 12 mm 2 1 2 inch taper 5 1 2 inch 6 3 4 inch 7 7 8 inch Heat ranges are 0 1 2 3 4 5 6 7 8 9 Cold Hot The higher the second n
9. coolant Clean flush and refill the cooling system with new antifreeze coolant Don t forget to check the hoses for weak spots and degradation 2 Test the battery and charging system Cold weather is hard on batteries Make sure the battery is in good condi tion and the charging system Is operating properly 3 Check the tires Tire tread depth i 4 S and proper tire pressure are critical pia YZ when driving on slick roads During the winter months tire pressure da Ba should be checked weekly Check tire tread depth 4 Change the wiper blades One of the most neglected maintenance items wiper blades must be in good condition to provide a clear view of the road Wiper blades should be replaced every six months Also fill the windshield washer fluid reservoir 5 Check the heater and defrost systems Yes it s obvious but some motorist are still left out in the cold Make sure these systems are working properly 6 Change the engine oil and filter Follow the mainte nance schedule in the vehicle s owner manual Explain to your customers that cold starts and short trips are hard on engine oll 7 Inspect the brakes The braking system is the most important safety item during poor weather conditions Check rotors pads and brake fluid levels to ensure proper operation Inspect the brake system 8 Check exterior lights Don t get left in the dark Make sure all bulbs illuminate and head lamps are p
10. e ACDelco Employees Appreciation Award which was presented by the council to the entire ACDelco organization as a thank you for their hard work in supporting the TSS program Nancy McLean Director ACDelco Marketing was recognized by the council as well with the Dedicated Service Award ACDelco would like to thank all TSS Advisory Council mem bers both national and zone for all of their contributions in making the TSS program one of the best in the industry Thanks to Staci Shelton ACDelco Partners with ASE ACDelco is pleased to announce an agreement with the National Institute for Automotive Service Excellence ASE to work together toward increasing technician certification Technicians at participating U S ACDelco TSS service centers are eligible for a significantly discounted registra tion fee on the certification tests of the Blue Seal of Excellence Recognition Program Registration for the tests and additional information can be found at www ase com To receive the TSS discount when registering enter a dash and TSS TSS after your business name DuraStop Caliper Label Indicators ACDelco has incorporated identifiers on DuraStop caliper labels to make it easier to identify the friction material included with loaded calipers and if a bracket is included with loaded and Friction Ready Calipers The friction indicators C M and O will be displayed on the label The following are the loaded calip
11. er friction type indicators and definitions C Loaded caliper contains Ceramic Friction material M Loaded caliper contains Semi Metallic Friction material O Loaded caliper contains Non Asbestos Organic material Thanks to Betty Stuart 3421 05107 CG BSx1 ORIG Si cm 19105940 QTY REMAN LOADED CALIPER PINZA CARGADA REMAN ETRIER REU MONTE Cy USA REMANUFACTURED FOR ACDelco PIECE REUSIEE POUR ACDelco VUELTO A FABRICAR PARA ACDelco 625 95609 Caliper label with new friction indicator New Product Information and Search Tool on acdelcotechconnect com New information on wiring sockets and pigtails as well as air conditioning products has been added to www acdelcotechconnect com ACDelco TEGHOOQN NECT a Marketing Support Fleet Total Service Support Training Automotive Systems WISE Promotions Wiring Sockets and Pigtails Search Tool This Home new search tool makes it easier to identify wiring sockets and pigtails for GM and non GM vehicles te 5 3 The on line reference source offers a menu driven ACDelco TechConnect Wiring Sockets and Pigtails search feature with photos of each pigtail and aaa elect a ee wiring socket so you can match the part you are replacing with the new part number Pigtails Search GM Non GM Not sure Air Conditioning Product Information The A C technical product information enables you to identify associated parts for a repair It
12. ideration when determining the right time to change the engine oil The oil life moni toring technology involves computerized analysis of engine revolutions operating temperature and other factors to opti mize the change Interval selection When the engine is cold or very hot the miles driven are weighted more heavily penalized toward the total that triggers the oil change notification Because of advances in engine technology and engine oil the system is calibrated to allow more engine revolutions between oil changes result ing In increased mileage The vehicle build transmission gear ratios final drive rear axle ratios tire size also plays a role in how hard the engine is working Finally customer use IS ana lyzed including highway and city driving heavy loads and extreme short trips The Oil Life System does not actually monitor the physical properties of the oil It applies a highly sophisti cated mathematical model based on the known influence of oil service temp erature and engine revolutions to determine the remaining useful oil life It s Important to note that when the Oil Life System indicates 0 oil life remaining there is a 20 safety factor Golden Years In the end it s good to look at things as not getting older but getting better Engine oil formulas continue to get better expanding useful oil life The extended drain intervals reduce the demand for oil The environmental benef
13. its are less used oil handling and disposal as well as increased conserva tion of oil resources Some European companies are now calling for oil changes at 20 000 miles The future of oil life points toward longerlasting oil with a better resistance to degradation and an emphasis on continued conservation Thanks to Mike DeSander New Suspension Seminar Covers Basics Latest Technology The new ACDelco seminar Suspension Technology Yesterday Today Tomorrow SS UC 01 01 provides the latest information about automotive suspension technology and electronic chassis components along with their related service issues The main topics covered in the semi nar include e Suspension functions e Electronic suspension inputs and outputs e Electronic suspension diagnostics e Suspension chassis technology Suspension Basics The seminar begins with a review of the suspension from the origins of a coach suspended by leather straps mounted to a frame to later innovations such as struts and semi elliptical springs Typical suspension components that are highlighted include ball joints coil springs tie rods stabilizer bars shock absorbers control arms and others The ACDelco ball joint left offers a number of innovations not found on competitors right ACDelco s product offerings of these suspension and chassis components feature a number of innovations and the features and benefits of ACDelco
14. lable through GM dealers ACDelco offers a 6 oz bottle part number 15 102 Product Assistance For assistance and information regarding specific ACDelco products contact these free information hotlines Brakes 1 888 701 6169 prompt 1 Chassis 1 888 701 6169 prompt 2 Clutches 1 800 725 8625 Litt Supports 1 800 790 5438 Shocks 1 877 466 7752 Starters and Alternators 1 800 228 9672 Steering 1 866 833 5567 Wiper Blades 1 800 810 7096 Winter Maintenance Top 10 There s no way to avoid him old man winter is coming But depending on your part of the country that may mean snow packed roads or just a drop to cooler temperatures Regardless of future weather forecasts now is the ideal time to promote routine maintenance checks to encourage cus tomers to winterize their vehicles After all it s not fun to be stranded on the side of the road in any type of weather According to the Car Care Council more than 70 percent of motorists do not have their cars winterized in preparation for inclement weather To help create awareness of the need for proper vehicle maintenance the third promotion in ACDelco s 2007 Winning Hand program focuses on winter routine maintenance It includes a 10 consumer mail in rebate during the consumer promotional period of November 1 December 31 Here are the top ten maintenance Items to check to get ready for the winter weather ahead 1 Change the engine
15. nge 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 2007 ACDelco All rights reserved Oil Life Part 2 Engine oil is made up of two compo nents First is a base stock of either mineral or synthetic oil The second part is the additives that turn the oil into a lubricant as well as serve as detergents friction modifiers anti wear agents and other purposes resulted in pro gressively higher quality oils The API starburst certifi cation label is used to help on oli temperature identify the engine oils that meet these new specifications for oxidation Reset memory constant powder rug che bead ony thet ie Pace abc GM Oil Life System Algorithm Overview Estimate engine oll temperature by measuring coolant temperature Penalty Factor Assignment In the last issue of TechConnect oil consumption and oil life were reviewed Continuing with oil life here s a look at oil conservation efforts including the fundamentals of engine oil Count combustion events by measuring rpm over a fixed time interval Multiply combustion events by penalty factor Penalty Factor Subtract corecied combustion events from previous total and the oil life system used in many resistance ravi new vehicles today deposit
16. ngine oils Over the years the Service Categories became technically obsolete and in 1993 the GF1 specification was created fol lowed by GF2 GF3 and the latest GF4 specification that was introduced in 2004 Each specification category has conservation Middle Age The North American market used 757 million gallons of engine oil in 2006 The GM Oil Life System which measures oil degradation not mileage can extend oll change intervals and reduce oil use In the past useful oil life was thought to be approximately 3 000 to 5 000 miles It turns out that mileage is actually middle age in the oil lifespan of a typical passenger car OEMs have long understood that mileage is not a fundamental factor in oil degradation The primary factor that influences oil life is engine combustion events A secondary factor is engine oil temperature Ideally engine oil change intervals should be determined by these factors The average oil change interval using the GM Oil Life System is approxi mately 8 500 miles If all customers followed the Oil Life System intervals an estimated 7 million gallons of oil could be saved There also is a movement toward more synthetic oil use By 2009 it s estimated that synthetic and specialty oils may account for over 20 of all engine oil sold All 2008 Cadillac mod els for example will be factory filled with Mobil 1 synthetic oil The GM Oil Life System takes a number of factors into cons
17. nufacturing and should not be changed A new spark plug found to not be properly gapped should not be used When gapping conventional Spark plugs refer to the exact measurement specified by the engine manufacturer Only the side electrode should be moved not the center electrode An incorrect gap can cause the spark plug to mistire or foul When installing a spark plug screw the plug in the cylinder head until it is finger tight Then use a torque wrench to tighten the plug to the proper torque recommend ed by the engine manufacturer The threads on the spark plug and port must be clean smooth and dry Overtightening a spark plug can cause stretching of the plug shell and may allow blow by to pass between the shell and insulator Some other common spark plug installation problems include e Installing a spark plug without a gasket causing overheating and Spark knock e Installing a spark plug with two gaskets leading to poor heat trans fer and spark knock e Installing a long reach spark plug in a cylinder head designed for one with a shorter reach resulting In threads filled with residue and pos sible piston damage e Installing a short reach spark plug in a cylinder head designed for one with a longer reach causing fouling misfires and residue tilled threads Thanks to Mike DeSander ACDelco connect E pm E ff imi Ebil Dae r fl aia aa ll loene eo ee l ACDelco TechConnect is
18. omputer Controls and Ignition System Diagnostics New Training Here are some of the new ACDelco training courses that are now available to technicians via the LMS Instructor Led Training S ACO7 02 01ILT Automotive Air Conditioning Advanced Refrigerant System Diagnostics S AC07 03 01 ILT HVAC Control System Operation and Diagnostics Web Based Training S EL06 01 02WBT Electrical Electronics Stage 1 Spanish S EL06 07Z01WBT Hybrid Introduction and Safety Spanish TechAssist Training S EP08 17 01TAS Saablronic 8 and ME9 Fuel and Ignition Systems Spanish S EP08 19 01TAS Vehicle Data Recorder S SS04 04 01TAS Installing GM Accessory Wheels for MY 2007 French
19. ounds e Has a high percentage of PTFE that lowers friction and stick slip Contains proprietary additives that make it more shear stable than other silicone compounds Combines the water spray out properties of most caliper lubes with the long term wear potential of general backing plate lubricants Thanks to Catherine Cullins oO M g p BE FPFEU EEA m twee The following technical tips provide repair information about specific conditions on a variety of vehicles If you have a tough or unusual service repair the TSS Technical Assistance Hot Line can help Call 1 800 825 5886 prompt 2 to speak with a technical expert with the latest OEM information Loose Connection 2004 06 Buick Rainier Chevrolet Trailblazer GMC Envoy 2002 04 Oldsmobile Bravada 2005 06 Saab 9 7x These vehicles may exhibit 4VVD inoperative SIR lamp erratic fuel gauge operation and or a Service Stability Message Possible Diagnostic Trouble Codes DTCs are C0186 C0196 C0327 C0455 P0452 P0453 P0461 P0462 P0464 and or U1088 A possible cause of these symptoms is a loose connection or backed out terminal s at the C101 connector a 38 way connector mounted along the underhood fuse block This harness may be routed tightly around the Underhood Accessory Wiring Junction Block also called the UBEC that could induce any of the concerns listed y Connector C101 along the underhood fuse block Check all terminal
20. rent a remote unmarked negative terminal is located in the front of the engine compartment near the engine oil dip stick This location is shown in the owner s manual Negative terminal Tip in Hesitation 2004 05 Buick Rainier Chevrolet TrailBlazer GMC Envoy 2004 Oldsmobile Bravada 2005 Saab 9 7x with 4 2L engine VIN S RPO LL8 and secondary AIR Injection RPO K18 7 On rare occasions a tip in hesitation may be experienced when accelerating from a stop This may happen at any engine temperature but it is typically more apparent on light tip in acceleration after idling for 1 2 minutes at operating temperature The cause may be a leaking Secondary Air Injection solenoid valve which is mounted to the passenger side of the cylinder head If Service Information diagnostics do not isolate a cause for this concern temporarily remove the hose from the Secondary Air Injection solenoid valve start the engine and inspect the inlet side of the valve for exhaust pulsations with it closed at an idle If exhaust pulsations are present replace the Secondary Air Injection solenoid valve and evaluate the concern Part Number Correction The part number in the September October issue of TechConnect for the Cooling Coil Coating kit used to address air conditioning odors should have been listed as 12346391 The kit is available only through GM dealers A 6 oz aerosol can part number 12377951 also is avai
21. roperly aimed 9 Check the exhaust system Look for leaks in the exhaust system which can be especially dangerous during cold weather when the windows are closed 10 Be prepared Even a well maintained vehicle can develop problems on the road so an emergency kit in the trunk can really help if stranded for several hours Thanks to Dennis Kissack TS PU 0106 07 The Training Update How to Take ACDelco Training Go to acdelcotechconnect com and click on the Training tab to log on to the ACDelco Learning Management System LMS e To enroll in an Instructor Led Training ILT course click on the Enrollment link or the Instructor Led Courses link e To launch a Web Based Training WBT course click on the Web Based Courses link to view the catalog and select a specific course e To launch a TechAssist TAS course click on the TechAssists link to view the catalog and select a Specific course Current Instructor Led Training ACDelco s InstructorLed Training ILT courses provide hands on instruction with the latest automotive systems The following ILT courses are currently being held at training center locations around the country S AC07 01 01 ILT HVAC Systems Diagnostics S AC07 02 01 ILT Automotive Air Conditioning Advanced Refrigerant System Diagnostics S EL06 11 01ILT Automotive Electrical Circuit Diagnosis and Repair S EP08 01 01ILT Engine Performance S EP08 02 01ILT Engine Performance C
22. s Coronado Springs Resort in Orlando Fla The theme for the 2008 convention is Current Events and will focus on the latest In modern data management and electronics training ACDelco is a proud sponsor of the convention Featured programs include e Off the Charts Service Your Secret Weapon in the Battle for Customers e Solving On Board Vehicle Communication Problems on Bus Circuits e Essential Electrical Checks e Airbag Safety amp A C Service e Getting to Know Computers e Essential Hybrid Knowledge for the A C and Heat Transfer Technician with an electronic stability program that integrates braking and steering maneu vers The Cadillac XLR uses on vehicle data communications to control mod ules that operate the transmission suspension brakes and steering Diagnostics The seminar reviews chassis service information and diagnostic tips on Diagnostic Trouble Codes DTC input RF Position Sensor 3 98 Volts LF Position Sensor 3 65 Volts RR Position Sensor 2 75 Volts LR Position Sensor 2 92 Volts RF Danper Actuator Comm AY i LF Danper Actuator Conn RR Danper Actuator Conn LR Damper Actuator Conn rA 2 10 0 Scan tool data parameters for several suspension components data parameters output controls and symptom based diagnosis of the suspension and related systems and components A look into the future concludes the seminar with details about how leading technology will impact tomorrow s s
23. top issues for cars and trucks with a reference to the specific bulletin Exchange bulletins pertain to part restrictions or situations in which the parts cannot be scrapped and must be returned to General Motors Warranty Administration bulletins provide information related to sub mission of warranty claims Engineering Information El bulletins are published on issues In which engineering in unable to determine a root cause due to returned parts being NTF no trouble found and or unable to duplicate the customer concern Engineering Information bulletins are technical in nature and request information from the technician during diagnosis Thanks to Ann Briedis New ACDelco Silicone Brake Lubricant ACDelco announces a new Silicone Brake Lubricant part number 10 4019 The new lubricant comes in an 8 oz can with an applicator brush The brush enables the lubricant to be easily applied on brake components This product replaces the 5 3 oz tube of silicone Brake Lubricant part number 10 4022 ACDelco Silicone Brake Lubricant is a Polytetrafluoroethylene PTFE thickened silicone compound containing specially selected premium silicone oils and high levels of PTFE This product combines the excellent temperature corrosion and water resistance typical of silicone com pounds with the outstanding lubrication properties of PTFE Silicone Brake Lubricant e Is compatible with most plastic and rubber comp
24. umber the hotter the plug Heat Range An extended lower insulator results in a higher heat range Heat range is the measure of the Spark plug s capability to transfer heat from the engine combustion chamber to the cylinder head The rate of heat transfer is based on the spark plug design primarily the length of the lower insulator and the conductivity of the center electrode An extended insulator tip takes longer to transfer heat resulting in a higher heat range ACDelco plugs are designed to operate at specific heat ranges and in various types of driving The spark plug tip must operate at a high enough tem perature to prevent fouling yet remain cold enough to avoid pre ignition A hot plug transters heat more slowly and operates at a higher temper ature while a cold plug has a faster rate of heat transfer and operates ata cooler temperature when installed in the same engine and operated under the same conditions A cold plug may be best suited for heavy load or high speed driving A hot plug may be better for prolonged idling or stop and go traffic Installing hot spark plugs in the wrong engine application can result in pre ignition and possible piston damage And installing cold plugs in the wrong engine application can lead to fouling loss of power and higher exhaust emission levels Installation Tips The spark plug gap of ACDelco iridium and platinum spark plugs is set during ma
25. uspension systems An active stabilizer bar for example will be able to respond in real time to driving conditions In addition a linear electromagnetic motor strut can precisely control wheel motion for a smoother ride More information To learn more about the Suspension Technology Yesterday Today Tomorrow seminar as well as other ACDelco seminars being held in your area contact your local ACDelco distributor Thanks to Jim Resutek For more information about the MACS 2008 convention and trade show visit the MACS website at www macsw org Thanks to Dennis Kissack The recent ACDelco 4 s National Af Y gt Total Service E uF Support TSS Advisory Council meeting held in Grand Blanc From left Jeff Spitzer Director SPO Field amp Sales Operations Nancy McLean Director ACDelco Marketing Paul Johnson General Director Global Independent Aftermarket and outgoing TSS Advisory Council members Mark Hyde Bob Wills and Dave Christopher Mich in late September was an opportunity to recognize the valuable input of several long standing council members as well as develop plans for continuous improvement of the TSS program Council members worked with ACDelco representatives on how to enhance the TSS program and offer new benefits and opportunities for TSS members Council members provided input based on their work with local zone advisory councils recently formed in all
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