POWER STEERING SYSTEM
Contents
1. Re tightening torque after tightening 4 9 N m 0 5 kg m 4 in Ib Loosen Adjusting screws 60 80 Rack sliding torque Range within 11 5 mm from Area average value 245 2 294 2 N 25 30 kg 55 66 Ib neutral position at power ON Allowable variation Peak value Whole area at power OFF 58 N 6 0 kg 13 Ib or less 294 N 30 0 kg 66 Ib or less Allowable variation 147 N 15 0 kg 33 Ib or less Oil Pump Oil pump relief hydraulic pressure Steering Fluid Fluid capacity Revision 2004 April EGS0007F 8 630 9 219 kPa 88 94 kg cm 1 251 1 337 psi EGS0007G approx 1 0 1 1 8 us at 7 8 Imp at PS 29 2002 Q45 SERVICE DATA AND SPECIFICATIONS SDS Revision 2004 April PS 30 2002 Q452. Apply a coat of Genuine Nissan PSF or equivalent to the new body seal and install it to the casing CAUTION Do not use old body seal Always use a new body seal Apply a coat of Genuine Nissan PSF or equivalent to the new side plate inner and outer seals and install them to the side plate rear CAUTION Do not use old side plate inner and outer seals Always use new side plate inner and outer seals Secure power steering pump in a vise CAUTION Be sure to place aluminum plates or something similar between surface of the steering pump and the vise to pre vent scratches or damage to the pump surface SGIAO063E Side plate rear Side plate Side plate Outer seal side plate rear ub EB LJ o C3 ELE ei SURAT i Y r Si T SGIA0065E Position rear body on the casing and tighten the four bolts working diagonally to specified torque Position front bracket to the casing and tighten the two bolts to specified torque Set inlet connector seal into the inlet connector slot and install inlet connector to the casing with the bolts CAUTION Do not use old inlet connector seal Always use a new inlet connector PS 27 2002 Q45 SERVICE DATA AND SPECIFICATIONS SDS SERVICE DATA AND SPECIFICATIONS SDS PFP 00030 Steering Wheel EGS0007A Steering wheel axial end play 0 mm 0 in Steering wheel free play 0 35 mm 0 1 38 in Steering Angle EGS00078 Drive type 2WD Minimum 41 45 41 75 1Inner w
3. HT62940000 Qe miad Riad of torque and rotational torque for ball joint S 3 kg cm a P Pw et m 3 HT62900000 S NT541 Socket adapter a ST35300000 L x Drift Installation drive shaft for power steering a 45 1mm 1 78 in dia pump b 59 mm 2 32 in dia b ZZA0881D To oil pump To control valve KV48103500 outlet PF3 8 e 26357 and J26357 10 Pressure gauge female PF3 8 male Shut off valve S NT547 Measurement oil pump relief pressure KV4802500 J33914 Pressure gauge adapter Revision 2004 April PF3 8 T oS ODD PF3 8 M16 x 1 5 pitch M16 x 1 5 pitch S NT542 PS 3 Measurement oil pump relief pressure 2002 Q45 PREPARATION Tool number Kent Moore No Description Tool name KV48103404 C c 3 Torque adapter Inspection rotational torque ZZA0824D KV48104400 Teflon ring correcting tool a 50 mm 1 97 in dia b 36 mm 1 46 in dia c 100 mm 3 94 in dia Installation of rack Teflon ring Fine finishing S NT550 Revision 2004 April PS 4 2002 Q45 NOISE VIBRATION AND HARSHNESS NVH TROUBLESHOOTING PFP 00003 NOISE VIBRATION AND HARSHNESS NVH TROUBLESHOOTING NVH Troubleshooting Chart EGS00081 Use the chart below to help you find the cause of the symptom If necessary repair or replace these parts g Hg Sq3xwvug a uonoes XV
4. socket Inner socket screw the socket into rack and then tighten to specified torque Lock plate d Crimp lock plate at two slots in the rack Spacer ring e Install spacer ring to lock plate as shown in the figure CAUTION When installing spacer ring be careful not to scratch ring Revision 2004 April PS 22 2002 Q45 1 POWER STEERING OIL PUMP POWER STEERING OIL PUMP PFP 49110 On Vehicle Service Easo0076 CHECKING HYDRAULIC SYSTEM Before starting work confirm belt tension is proper KV48103500 and KV48102500 Raise vehicle Connect oil pressure gauge special service tool 926357 26357 10 and J33914 and oil pressure gauge adapter special service tool between the oil pump discharge connector and high pressure hose and then bleed hydraulic circuit Start engine Allow engine to run until tank temperature reaches 60 80 C 140 to 176 F WARNING Warm up engine with shut off valve fully opened If engine ihegenesetre is started with shut off valve closed fluid pressure in power hose hose mp Direction of oil flow SST834 F steering pump increases to maximum This will raise fluid temperature abnormally With engine idling close oil pressure gauge valve special service tool and read the relief oil pressure Relief pressure specification 8 630 9 219 kPa 88 94 kg cm 1 251 1 337 psi After measurement open valve slowly Do not hold steering wheel in a locked position for more than 15 sec
5. 0007J Checking Fluid Leakage easoovex Check lines for improper attachment and for leaks cracks damage loose connections chafing or deterioration 1 4 5 6 Bl 1 a b C Run engine at idle speed or 1 000 rpm Make sure temperature of fluid in oil tank rises to 60 to 80 C 140 to 176 F Turn steering wheel right to left several times Hold steering wheel at each lock position for five seconds and carefully check for fluid leakage CAUTION Do not hold steering wheel in a locked position for more than 15 seconds If fluid leakage at connectors is noticed loosen flare nut and then retighten Do not overtighten connector as this can damage O ring washer and connector If fluid leakage from power steering pump is noticed check power steering pump Refer to PS 23 CHECKING HYDRAULIC SYSTEM Check rack boots for accumulation of power steering fluid SST836C eeding Hydraulic System easoousy Raise front end of vehicle until wheels clear ground Add fluid into oil tank to specified level Meanwhile quickly turn steering wheel fully to right and left and lightly touch steering stoppers Repeat steering wheel operation until fluid level no longer decreases Start engine Repeat step 2 above e Incomplete air bleeding will cause the following to occur When this happens bleed air again Generation of air bubbles in reservoir tank Generation of clicking noise in oil pump Excessive buzzing in o
6. G STEERING SECTION S POWER STEERING SYSTEM CONTENTS PRECAUTIONS saai ceeded 2 DISASSEMBLY erectae Precautions for Supplemental Restraint System AOSENMIBISY 2 de d aer Docs sa OL AUT THEE RUE SRS AIR BAG and SEAT BELT PRE TEN Inspection sseeseeeseseeeeeeennennnnnnnn nnns well RON 2 POWER STEERING GEAR AND LINKAGE Precautions for Steering System 2 Removal and Installation PREPARATION cid ocius a su ovre EU dS dece as 3 REMOVAL 2 529 0054620 eio a a Special Service Tools eseeeseeessssss 3 INSTALLATION saitide aa ia e NOISE VIBRATION AND HARSHNESS NVH COMPONEN MN E D T TROUBLESHOOTING cessere 5 Disassembly and Assembly NVH Troubleshooting Chart 5 DISASSEMBLY 12 Dre desert oie e vH EE S POWER STEERING FLUID 6 PINION ROTATING TORQUE ADJUSTMENT 19 Checking Fluid Level eeeeseseeseeeeees 6 INSPECTION AFTER DISASSEMBLY 19 Checking Fluid Leakage sess 6 ASSEMBLY 2 3 5 2 ecrire EUER wed e se 20 Bleeding Hydraulic System 6 POWER STEERING OIL PUMP 23 STEERING WHEEL noii renasci 7 On Vehicle Service cc
7. GIA0057E SST083B 2002 Q45 POWER STEERING GEAR AND LINKAGE 3 Using tool compress rack Teflon ring securely on rack Bold Always insert tool from rack gear side KV48104400 Rack teeth IT Position and secure seal SST885B 4 Remove rack oil seal CAUTION Do not use old rack oil seal is not reusable Always use a new rack oil seal a To prevent inner rack oil seal from being damaged wrap an place plastic film around the rack teeth surface and place the oil seal around sheet Pull the sheet with oil seal around it until the seal passes the rack teeth surface x Rack oil seal SST201A b Install center bushing to rack Be careful not to damage the Cener inside of gear housing assembly with rack If damaged replace bushing gear housing assembly Otherwise oil leaks may result CAUTION Be careful not to damage the inside of gear housing assem bly with rack If damaged replace gear housing assembly Otherwise oil leaks may result c Insert rack oil seal inner into rack piston Move rack in the gear housing assembly so that rack oil seal inner can be pressed against center bushing CAUTION SST830A Be careful not to damage the inside of gear housing assem bly with rack If damaged replace gear housing assembly Otherwise oil leaks may result d To prevent the rack oil seal outer from being damaged wrap a place plastic film around the end of rack and place the oil seal Rack oil seal aroun
8. OLUMN 12 Sleen GEM eiiis e idu edu Ds edid 29 INSTALLATION OF STEERING COLUMN 12 SIBI chee sia ond tes 29 Disassembly and Assembly 13 EeNNN FIU aruna e aaa 29 Revision 2004 April PS 1 2002 Q45 PRECAUTIONS PRECAUTIONS PFP 00001 Precautions for Supplemental Restraint System SRS AIR BAG and SEAT BELT PRE TENSIONER EGS00071 The Supplemental Restraint System such as AIR BAG and SEAT BELT PRE TENSIONER used along with a front seat belt helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision Information necessary to service the system safely is included in the SRS and SB section of this Service Manual WARNING e To avoid rendering the SRS inoperative which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation all maintenance must be per formed by an authorized NISSAN INFINITI dealer e Improper maintenance including incorrect removal and installation of the SRS can lead to per sonal injury caused by unintentional activation of the system For removal of Spiral Cable and Air Bag Module see the SRS section e Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual SRS wiring harnesses can be identified by yellow and or orange harnesses or harness connectors Precautio
9. Y U HAN LAVHS SAIYC Xx Xx Xx uonoes LM Ul HAN di3HM QVOH a le uonoes M Ul HAN Sei A 1 eS 4 uonoes MSY pue NSA XVH XV4 U HAN NOISNSdSNS QNV3TIXV X x X X uonoes 13H U HAN TVILN3H3HHIG X UONO8S Hd Ul HAN LAVHS HdTl3dOud X X GI Sd ssouesoo eBDexuri Buas x Xx vl Sd uuunjoo Buiieels JO sseuaesoo JO uonejeisur JedoJduJ X vl Sd oDeuiep JO uoneuuojep uuunjoo Buas X uoneJouoejep Jeqaqns BununoJv X X xX xX vl Sd JOA YOO IJ JO SSOUBSOO JO uomne eisur JedoJduu x X xX j ym Buueeis 1edoJduJ X X xX clL NA SSQUBSOO y q SAG X 9910 Buipi s 5eJ 1e96 Bua X Z Sd e d jaaum unaa X 9 Sd oDeyxeo pinjj se96 6uueeljS X 02 Sd e d pue julio eq pos aly X 0c Sd enba4oj Bulyejou julol eq poj er X 02 Sd 9010 DuiDuiws julol eq poj erj X 9 Sd ueis s oineJp u ul diy X 9 Sd e e PINJA X E c O 2x lt 29 E 3 a 9 4 EIS LLI c0 20 O a 2 z Z LLI a k O o nd 5 53 S 2 c a t 2 3 oc A N x Applicable 2002 Q45 PS 5 Revision 2004 April POWER STEERING FLUID POWER STEERING FLUID PFP kLF20 Checking Fluid Level EGSOQ06W e Check fluid level with dipstick on reservoir cap Use HOT range at fluid temperatures from 50 to 80 C 122 to 176 F Use COLD range at fluid temperatures from 0 to 30 C 32 to 86 F CAUTION e Do not overfill e Recommended fluid is Genuine Nissan PSF or equiva lent PGIA
10. acket Gear and linkage assembly M D Nem kg m ft Ib REMOVAL CAUTION The rotation of spiral cable SRS Air bag component part is limited If steering gear must be removed set front wheels in the straight ahead direction Do not rotate steering column while steering gear is removed 1 Remove under cover 2 Remove and tires cotter pin and remove tie rod outer socket from knuckle arms with Tool EIOS CAUTION J24319 01 e Be careful not to damage tie rod ball joint dust boot 3 Remove pinch bolt on lower side of lower joint 4 Loosen pinch bolt on upper side of lower joint 5 Remove high pressure side and low pressure side hydraulic pipes from power steering gear 6 Remove gear and linkage assembly mounting bolts 7 oe rack mount bracket and rack mount insulator from vehi cle 8 Disconnect EPS solenoid valve connector 9 Remove power steering gear from vehicle INSTALLATION e Install in the reverse order of removal e Install pipe connector 27 5 39 2 N m 2 8 3 9 kg m 21 28 ft lb Hiah 14 8 24 5 N m 1 5 2 4kg m igh pressure side 11 28 ft Ib Lower pressure sidet Revision 2004 April PS 15 PFP 49001 EGS00073 m d X Cotter pin D 64 107 S 6 50 11 0 47 79 SGIA0041E SGIA0054E 2002 Q45 POWER STEERING GEAR AND LINKAGE e After installation bleed system Refer to PS 6 Bleeding Hydraulic System Follow the procedure belo
11. cecccccccceeeeeeeeeeeeseeaeeeeeeeeeas 23 On Vehicle Service aeia ar a iai 7 CHECKING HYDRAULIC SYSTEM 23 CHECKING STEERING WHEEL PLAY 7 CHECKING AND ADJUSTING DRIVE BELTS CHECKING NEUTRAL POSITION ON STEER FOR POWER STEEBING eet iud 23 WIN emi miii aper 7 Removal and Installation 23 CHECKING STEERING WHEEL TURNING REMOVAL seriinin tere imvie sce cU aa 23 FORC MP UN NUMEN RON ere ena 7 INSTALLATION eeeeeernnnnnnnnn nn 23 FRONT WHEEL TURNING ANGLE 8 Disassembly and Assembly 24 Removal and Installation 8 PRE DISASSEMBLY INSPECTION 24 REMOVAL e ET 8 DISASSEMBLY 12 niii t eoi de doe 24 INSTALLATION eeeeernnnnnennnnn 9 INSPECTION AFTER DISASSEMBLY 25 STEERING COLUMN 4 hna to bo cuc oe umen 11 AoSEMBLY sirsa isis on ete adeste Gace 25 Removal and Installation 11 SERVICE DATA AND SPECIFICATIONS SDS 28 REMOVAL OF LOWER SHAFT AND HALL Sieering Wheel orris ce bore Bea edil 28 COVER Re EE 11 Steering Angle ccccssssccccceesceeeceeeeeeeeseeeseeeseaeeees 28 INSTALLATION OF LOWER JOINT AND HALL oSleerng Colum sessiscossetuteedri eiae dee viti evi ce iu si dea ae 28 9 Ae a 12 Steering Linkage eeeeeeeeeeerrrennee 28 REMOVAL OF STEERING C
12. d areas at point A of lock plate Loosen and remove inner socket from rack Copper plates SGIA0056E CAUTION When removing lock plate from rack be careful not to dam Inner socket age the rack surface If it is damaged replace rack Other SGIA0019E wise oil leaks may result Remove lock plate and spacer ring from rack Use a 3 mm drill bit to remove punch crimped area on end cover assembly installation side of gear housing assembly Scoop out the area approximately 1 5 mm deep STC0013D Using a 42 mm 1 65 in open head wrench remove end cover assembly Remove rack and rack oil seal outer from gear housing assem bly CAUTION Be careful not to damage inner surface of gear housing assembly and rack If any damage is given replace gear Rack seal housing assembly and rack Otherwise oil leaks may result Heat rack Teflon ring to approximately 40 C 104 F with a dryer and remove Teflon ring and O ring from rack SSTOSAC CAUTION Be careful not to damage rack If it is damaged replace rack Otherwise oil leaks may result Revision 2004 April PS 18 2002 Q45 POWER STEERING GEAR AND LINKAGE 13 Push the inside of center bushing with a brass bar to remove center bushing and rack oil seal inner from gear housing assembly Rack oil seal CAUTION Center bushing Be careful not to damage the inside of gear housing assem bly If it is damaged replace gear housing assembly Other wise oil leaks may resu
13. d the sheet Pull the sheet with oil seal around it until the oil seal passes the end of rack Then install rack oil seal in place End cover assembly with end cover assembly SST321B Revision 2004 April PS 21 2002 Q45 POWER STEERING GEAR AND LINKAGE e Therack oil seal must be installed with the lips of inner and outer seals facing each other Q 5 Using a 42 mm 1 65 in open head special service tool ine outer tighten end cover assembly to specified torque 59 74 N m 6 1 7 5 kg m 44 54 ft Ib CAUTION Do not damage the surface of rack If damaged replace rack assembly Otherwise oil leaks may result End cover assembly SGIA0058E 6 Tighten end cover assembly and then crimp cylinder at the point 2 3 mm shown in the figure to prevent assembly from loosening 0 08 0 12 in 7 Install shims and an O ring to gear subassembly e Whether or not gear subassembly is replaced install as many shims as originally attached CAUTION Do not use old O ring Always use a new O ring 8 Install gear subassembly to gear housing assembly 9 Install lock plate to rack ic assembly CAUTION SST073B Do not use old lock plate Always use a new lock plate Locking sealant a Attach a spacer ring to rack temporarily Clinch CAUTION en Do not use old ring Always use a new spacer ring b Install lock plate to inner socket c Apply a coat of locking sealant to the thread of inner
14. e at the point shown in the figure Confirm that reading observed when ball stud and inner socket start moving is within the specification If reading is outside the specification replace socket Outer socket ire 4 81 45 7 N 0 49 4 67 kg 1 08 10 32 Ib Inner socket 8 9 64 N m 0 91 6 5 kg m 79 655 in Ib point indicated by arrow e Check ball joint for rotating torque e Using Tool confirm that reading is within the specification shown below If it is outside the specification replace socket Outer socket Rotating torque n Ib e Check ball joint for axial end play e Apply pressure of 490 N 50 kg 110 Ib to ball stud axially and measure distance that stud travels If the reading is outside the 0 30 2 90 N m 0 03 0 29 kg m 3 25i specification shown below replace socket Outer socket Inner socket socket Cylinder tubes Check cylinder tubes for scratches or other damage Replace if nec essary ASSEMBLY 1 Install O ring CAUTION Always use a new O ring 0 5 mm 0 02 in or less 0 2 mm 0 008 in or less e Check condition of dust cover If cracked excessively replace 2 Heata new rack Teflon ring to 40 C 104 F with a head gun CAUTION Always use a new rack Teflon ring Revision 2004 April PS 20 SST333B ST3127S000 J25765 A SST882B 490 N 50 kg 111 Ib 490 N 50 kg 111 Ib Inner socket Outer socket S
15. e figure Flow control B valve assembly sy Flow control valve spring Flow control A valve SGIA0061E Revision 2004 April PS 25 2002 Q45 POWER STEERING OIL PUMP 4 Match dowel pin A on flow control A valve shown in the figure with cutout B of the side plate front and then install side plate i sdana front to the casing bu Fon n j SGIA0062E 5 Install the cartridge on top of the side plate front with smaller slot in the cartridge facing the casing 6 Install pulley to the casing CAUTION When installing pulley be careful not to scratch the drive shaft seal SST497A 7 Install rotor to the pulley shaft with punch mark on the rotor fac Rear housing side Front housing side ing the casing Punchmark SST289A 8 Install vane to the rotor with arc of the vane in contact with the cartridge Flat portion Round portion SST843A Revision 2004 April PS 26 2002 Q45 10 11 12 13 14 15 16 Revision 2004 April POWER STEERING OIL PUMP Using a hammer and a 10 mm box install rotor snap ring to the slot in the pulley shaft CAUTION e Do not use old snap ring Always use a new rotor snap ring e Be careful not to damage rotor and pulley shaft e If rotor is damaged replace power steering pump assem bly Match dowel pin A on flow control A valve shown in the figure with cutout B of the side plate rear and install side plate rear to the cartridge
16. f full turns Inner wheel Angle A Minimum 41 45 41 74 Nominal 42 45 42 75 Maximum 45 45 45 75 Outer wheel Angle B Nominal 33 50 33 83 e If it is not within specification measure the rack stroke Rack stroke 68 5 mm 2 697 in e lf the rack stroke is outside of specification disassemble steer ing gear to check rack stroke e Turning angles are not adjustable If any of steering angles is not within specification check following components for wear or damage Steering gear Steering column Front suspension components Removal and Installation EGSOD070 REMOVAL 1 Remove air bag module Refer to SRS 34 DRIVER AIR BAG J MODULE 2 Remove horn connector 3 Remove steering wheel mounting nut paint mating marks on the top of column shaft steering wheel SST307BA Special bolt 64 SBF812E Revision 2004 April PS 8 2002 Q45 STEERING WHEEL 4 Remove steering wheel with tool ST27180001 J25726 A SST818C INSTALLATION Paying attention to the following items install in reverse order of removal e Align spiral cable correctly when installing steering wheel a Set the front wheels in the straight ahead position b Make sure that spiral cable is in neutral position The neutral position is detected by turning left about 2 5 or 3 5 revolutions from right end position Align the two marks AV The spiral cable can be turned up to about 2 5 or 3 5 turns from neut
17. ft Spring washer assembly Housing Oil seal amp 9 K enl Spring kaa Flow control valve 6 O ring X E Connector bolt ps y 0 eo 78 7 0 8 0 51 58 Joint See detail A Spring washer 5 54 68 5 5 7 0 40 50 Side plate O 0 31 42 3 2 4 3 23 31 D Nem kg m ft Ib E Apply Genuine Nissan PSF II or equivalent SGIA0043E PRE DISASSEMBLY INSPECTION Disassemble the power steering oil pomp only if following items are found e Oil leak from any point show in the figure e Deformed or damaged pulley e Poor performance SST128B DISASSEMBLY 1 Secure power steering pump in a vise CAUTION Be sure to place aluminum plates or something similar between surface of the steering pump and the vise to prevent scratches or damage to the pump surface Unscrew the two front bracket bolts and remove casing from front bracket Unscrew the four rear body bolts and remove casing from rear body Remove rear body seal from casing Remove side plate rear side from cartridge and remove side plate inner and outer seals from side plate rear side GE aw ce dS Revision 2004 April PS 24 2002 Q45 POWER STEERING OIL PUMP 6 Remove rotor snap ring with snap ring pliers and remove pulley from the casing K o CAUTION When removing rotor snap ring be careful not to damage the pulley shaft 7 Remove cartridge rotor vane side plate front flow control A Rotor snap ri
18. heel o AE o Degree minute Decimal degree OIN deo cial Maximum 45 45 45 75 Outer wheel Meus A Degree mine Decimal degree omnt SEU TURO Steering Column 6500076 642 644 mm 25 28 25 35 in Steering column length Length L 638 1 Most contracted position of telescopic steering To 668 1 Most extended position of telescopic steering s CT s AH rum STC1136D Steering Linkage EGSOQ07D Steering gear type PR26AF Oscillating torque 0 30 2 90 N m 0 03 0 29 kg m Spring balance reading f Tie i ball joint outer Measuring point stud bolt hole 4 81 45 7 N 0 49 4 67 kg 1 08 10 32 Ib socket Sliding torque 0 30 2 90 N m 0 03 0 29 kg m 3 25 in Ib Axial end play 0 5 mm 0 02 in or less Oscillating torque 1 0 7 8 N m 0 1 0 8 kg m 9 69 in Ib Tie rod ball joint inner Measured value of spring scale f socket measuring point mark Braa OA M O DR SGN Axial end play 0 2 mm 0 08 in or less Tie rod length Length L 160 0 mm 6 30 in 1 STC1 Revision 2004 April PS 28 2002 Q45 SERVICE DATA AND SPECIFICATIONS SDS Steering Gear PR26AF EGS0007E Steering gear model Rack neutral position dimen sion L 68 5 mm 2 697 in STC0101D Retainer adjustment Screw lock nut Tightening torque 40 58 N m 4 0 6 0 kg m 29 43 ft lb Primary tightening torque 4 9 N m 0 5 kg m 4 in Ib
19. il pump Fluid noise may occur in valve or oil pump This is common when vehicle is stationary or while turning steering wheel slowly This does not affect performance or durability of system Revision 2004 April PS 6 2002 Q45 STEERING WHEEL STEERING WHEEL PFP 48430 On Vehicle Service EGRE CHECKING STEERING WHEEL PLAY e With wheels in a straight ahead position check steering wheel play Steering wheel play 35 mm 1 38 in or less e fitis not within specification check following for loose or worn components Steering gear assembly Steering column Front suspension and axle e Check steering wheel for vertical horizontal or axial play SST489B Steering wheel axial end play 0 mm 0 in CHECKING NEUTRAL POSITION ON STEERING WHEEL Pre Checking e Make sure that wheel alignment is correct Wheel alignment Refer toFSU 6 On Vehicle Inspection and Service e Verify that steering gear is centered before removing steering wheel Checking 1 Check that steering wheel is in neutral position when driving straight ahead 2 If itis not in neutral position remove steering wheel and reinstall it correctly 3 If neutral position is between two teeth loosen tie rods locknuts Turn tie rods by the same amount in opposite directions both left and right sides CHECKING STEERING WHEEL TURNING FORCE 1 Park vehicle on a level dry surface and set parking brake 2 Start engine 3 3 Bring power steering fluid up to adequa
20. ing bolts and nuts at steering column side of upper joint Remove hall cover mounting nuts and remove upper joint lower joint lower shaft and hall cover from 1 ot en oe NS a vehicle Remove pinch bolt and remove lower joint from lower shaft Remove pinch bolt and remove upper joint from lower shaft Remove lower shaft from hall cover Revision 2004 April PS 11 2002 Q45 STEERING COLUMN INSTALLATION OF LOWER JOINT AND HALL COVER e Install in the reverse order of removal e Install lower joint to power steering gear in the following procedure 1 Align the projection on rear cover cap with the groove A on sub gear assembly 2 Lock steering wheel by turning steering wheel clockwise by 60 from neutral position Do not align lower side slit on lower joint to projection on rear cover cap 3 Install lower joint to power steering gear 4 Unlock steering wheel and turning steering wheel to neutral position Check that projection on rear cover cap and the groove A on sub gear assembly are positioned as shown in the figure SGIA0059E REMOVAL OF STEERING COLUMN CAUTION When removing and installing steering column assembly avoid impact to axial direction 1 Remove steering wheel Refer to PS 8 REMOVAL Hemove column cover steering lock escutcheon and driver side lower instrument panel Remove spiral cable Refer to SRS 37 Removal and Installation Loosen pinch bolt at lower shaft side of
21. lt M A INSPECTION AFTER DISASSEMBLY E xtension bar 29 mm socket SST472A PINION ROTATING TORQUE ADJUSTMENT 1 Set gears in the neutral position with out fluid in gear Lack niit 2 Cost adjusting screw with locking sealant and screw it in Apply sealant 3 Lightly tighten lock nut M ue si cu 4 Tighten adjusting screw to a torque of 5 0 to 5 8 N m 0 5 to 0 6 kg m 45 to 51 in Ib 5 Move rack over its entire stroke ten times 6 Measure pinion rotating torque within the range of 180 degrees from neutral position using Tools Stop gear at the point of max imum torque 7 Loosen adjusting screw and retighten it to 5 0 to 5 8 N m 0 5 to 0 6 kg m 45 to 51 in Ib Then loosen adjusting screw 60 to 80 degrees Us See J25765 gt LZY MM K SST683C INSPECTION AFTER DISASSEMBLY Boot Check condition of boot If it is torn or deformed replace boot Rack Check rack for wear or damage Replace if necessary Gear Sub Assembly e Check pinion gear for damage or wear Replace gear sub assembly if necessary e Check bearing while rotating it If bearing ball lace is dented worn out or damaged replace gear sub assembly Gear Housing Cylinder Check gear housing cylinder for damage or internal scratch Replace gear housing assembly Revision 2004 April PS 19 2002 Q45 POWER STEERING GEAR AND LINKAGE Tie Rod Inner And Outer Sockets e Check ball joint for swinging force Hook a spring balanc
22. ng valve flow control valve spring and flow control B valve assem bly from the casing CAUTION Be careful not to drop and deform either the flow control A valve or flow control B valve assembly SGIA0059E 8 Remove inlet connector attaching bolt and remove inlet connector from the casing 9 Remove inlet connector seal from inlet connector 10 Using a screwdriver remove drive shaft seal from the casing CAUTION Be careful not to damage casing surface with the screwdriver INSPECTION AFTER DISASSEMBLY Casing And Rear Body Inspection e Check casing and inside the rear body for damage If rear body is found damaged replace it If casing is damaged replace power steering pump assembly Cartridge Inspection e Check cartridge for damage If any damage is found replace cartridge rotor and vane as a unit Side Plate Inspection e Check side plates front and rear for damage If any damage is found replace front and rear side plates as a unit ASSEMBLY 1 Apply a coat of Multi purpose grease to the drive shaft seal lip Using a drift special service tool install drive shaft seal to the casing CAUTION Do not use old drive shaft Always use a new drive shaft seal 2 If the dowel pin has been removed insert it into the casing by hand If it cannot be inserted by hand lightly tap with a hammer SST038A 3 Install flow control A valve flow control valve spring and flow control B valve assembly to locations shown in th
23. ns for Steering System EGSO0087 e Before disassembly thoroughly clean the outside of unit e Disassembly should be done in a clean work area It is important to prevent the internal parts from becom ing contaminated by dirt or other foreign matter Place disassembled parts in order on a parts rack for easier and proper assembly e Use nylon cloths or paper towels to clean parts common shop rags can leave lint that might interfere with their operation Before inspection or reassembly carefully clean all parts with a general purpose non flammable solvent e Before assembly apply a coat of recommended Genuine Nissan PSF ll or equivalent to hydraulic parts Vaseline may be applied to O rings and seals Do not use any grease e Replace all gaskets seals and O rings Avoid damaging O rings seals and gaskets during installation Perform functional tests whenever designated Revision 2004 April PS 2 2002 Q45 PREPARATION Special Service Tools PREPARATION PFP 00002 EGSO0006V The actual shapes of Kent Moore tools may differ from those of special service tools illustrated here Tool number Kent Moore No Tool name ST27180001 J25726 A Steering wheel puller M10 x 1 25 pitch Description Removal of steering wheel S e M8 x 1 25 pitch S NT544 ST3127S000 See J25765 A Preload gauge 1 GG9103000 J25765 A D poem 7 Torque wrench Ra Send Inspection of sliding torque steering 2
24. od Ow Boot clamp oo 6 5 11 0 47 80 Boot clamp Steering gear spacer Lock plate spacer Tie rod inner socket M9 Nem kg m in Ib OD 78 98 8 0 10 0 58 72 C Nem kg m ft lb 78 98 8 0 10 0 58 72 r1 E Apply Genuine Nissan PSF ll or equivalent Tie rod Do not disassemble SST682CB PS 17 2002 Q45 Revision 2004 April POWER STEERING GEAR AND LINKAGE Disassembly and Assembly EGSo0075 DISASSEMBLY Pob sc a 10 11 12 Secure power steering gear in a vise using copper plates or something similar to prevent it from being damaged Do not grip E Before disassembly clean power steering gear with kerosene Be careful not to bring any kerosene into contact with the dis charge and return port connectors Remove EPS solenoid valve assembly CAUTION Do not attempt to disassemble EPS solenoid valve Remove cylinder tube from gear housing assembly Remove rear cover cap from gear sub assembly Remove adjusting screw and lock nut along with spring and retainer from gear housing assembly Remove gear sub assembly from gear housing assembly CAUTION Do not attempt to disassemble gear sub assembly Remove nuts outer socket and boot CAUTION When removing boot be careful not to scratch or damage inner socket or gear housing assembly If any damage is found replace inner socket and gear housing assembly Otherwise oil leaks may result Move spacer ring to rack and raise two crimpe
25. onds e f relief pressure is outside specification disassemble and service oil pump Refer to PS 24 Disas sembly and Assembly After inspection remove oil pressure gauge special service tool and oil pressure gauge adapter special service tool from hydraulic circuit add fluid and bleed hydraulic circuit thoroughly Refer to PS 6 Bleeding Hydraulic System CHECKING AND ADJUSTING DRIVE BELTS FOR POWER STEERING Refer to MA section EM 12 Checking Drive Belts Removal and Installation 6500077 REMOVAL 1 Remove battery and radiator reservoir tank from vehicle 2 Drain power steering fluid 3 Loosen adjusting screw and bolts for oil pump attaching bracket and remove belt 4 Remove oil pump union bolt and hose 5 Remove oil pump bolts and oil pump attaching bracket 6 Remove oil pump from vehicle INSTALLATION Paying attention to following items install in reverse order of removal e After installation adjust belt tension Refer to EM 12 Tension Adjustment e After installation bleed circuit Refer to PS 6 Bleeding Hydraulic System Revision 2004 April PS 23 2002 Q45 POWER STEERING OIL PUMP Disassembly and Assembly 0800076 7 50 69 5 1 7 0 37 50 SEC 493 SEC 490 497 O ring e3 Hose 3 44 1 51 9 7 14 18 1 4 1 8 10 13 4 5 5 2 33 38 j D 54 68 Suction pipe 5 5 6 9 40 50 Pully X A MUS e Snap ring Q EN SS N Drive sha
26. ral position to both right and left The number of turns depends on spiral cable type Always confirm the number indicated on the caution label attached to spiral cable before starting work e Always work from side of air bag module Neutral position T SRS230 Place combination switch assembly with the L mark side facing down SST687C Revision 2004 April PS 9 2002 Q45 STEERING WHEEL Align the protruding portions of combination switch assembly with their corresponding holes in steering wheel then install steering wheel Refer to figure at right SST688C Revision 2004 April PS 10 2002 Q45 STEERING COLUMN Removal and Installation SEC 484 488 2 5 2 9 18 21 RO Nem kg m in Ib D Nem kg m ft Ib STEERING COLUMN 3 1 3 9 23 28 4 1 4 9 30 36 24 29 2 5 2 9 18 21 8 9 11 0 0 91 1 1 79 8 PFP 48810 EGS00071 SGIA0045E 1 Airbag module 2 Steering wheel 3 Spiral cable 4 Column cover 5 Steering column assembly 6 Steering column collar 7 Upper joint 8 Hole cover 9 Lower shaft 10 Lower join CAUTION Care must be taken not to give axial impact to steering column assembly during removal and installa tion REMOVAL OF LOWER SHAFT AND HALL COVER Raise vehicle with front wheels in the straight ahead position Remove pinch bolt at lower side of lower joint Loosen pinch bolt at lower shaft side of upper joint Remove clip mount
27. tall new self shear type screws and then cut off self shear type screw heads SST678C Revision 2004 April PS 13 2002 Q45 STEERING COLUMN ASSEMBLY e Refer to component parts diagram for tightening torque and reverse disassembly procedure for assembly Inspection EGS00086 e After installing steering column check tilt mechanism operation Unit mm in SGIA0053E e When steering wheel does not turn smoothly check steering col umn as follows and replace damaged parts 1 Check column bearings for damage or unevenness Lubricate with recommended multi purpose grease or replace steering column as an assembly if necessary 2 Check steering column lower shaft for deformation or breakage Replace if necessary e When the vehicle is involved in a light collision check steering column length L1 and steering column lower shaft length L2 If it is not within specifications replace steering column as an assembly SST315B Steering column length L1 638 668 mm 25 12 26 30 in Steering column lower shaft length L2 379 8 mm 14 95 in Revision 2004 April PS 14 2002 Q45 POWER STEERING GEAR AND LINKAGE POWER STEERING GEAR AND LINKAGE Removal and Installation 0 24 29 2 4 3 0 17 22 0 135 163 13 7 16 7 99 120 Lower joint _AX D 62 76 6 3 7 8 46 56 e a EPS sole 1 m E noid valve N V E Sy VD N N N gt S N N gt lt N Rack mounting br
28. te operating tempera ture Make sure temperature of fluid is approximately 60 to After turning 80 C 140 to 176 F Tires need to be inflated normal pressure 4 Check steering wheel turning force when steering wheel has been turned 360 from neutral position Steering wheel turning 36 N 3 7kg 8 2lb or force less SST491B 5 If steering wheel turning force is out of specification check rack sliding force a Disconnect steering column lower joint and knuckle arms from gear b Start and run engine at idle to make sure steering fluid has reached normal operating temperature c While pulling tie rod slowly in the 11 5 mm x0 453 in range from neutral position make sure rack sliding force is within specification Rack sliding force 255 294 N 26 30 kg 57 66 Ib SSTO90B d Check sliding force outside above range Rack sliding force Not more than 294 N 30kg 66lb e If rack sliding force is not within specification overhaul steering gear assembly Revision 2004 April PS 7 2002 Q45 STEERING WHEEL FRONT WHEEL TURNING ANGLE Check front wheel turning angle after toe in inspection Place the front wheels on turning radius gauges and rear wheels on stands so that vehicle can be level Check maximum inner and outer wheel turning angles for LH and RH road wheels SMA127 e Start engine With engine at idle rotate steering wheel all the way right and left measure turning angle Turning angle o
29. upper joint Remove clip mounting bolts and nuts at steering column side of upper joint Then remove upper joint from steering column assembly 6 Remove clamps and disconnect connectors 7 Remove steering column assembly from vehicle INSTALLATION OF STEERING COLUMN e Install in the reverse order of removal with steering lock unlocked e After installation turn steering wheel and check for distortion binding noise and excessive steering effort dE C C Revision 2004 April PS 12 2002 Q45 STEERING COLUMN Disassembly and Assembly EGS00072 DISASSEMBLY 1 7 2 1 12 15 Wy 1 0 1 4 0 11 0 14 9 12 0 16 21 1 7 2 1 12 15 N O 14 8 18 6 1 5 1 8 11 13 e D S ASA 0 14 0 11 0 14 9 12 ko Nem kg m in Ib 0 11 0 14 9 12 D Nem kg m ft lb PGIA0002E 1 Upper jacket tube 2 ilt motor 3 Tilt sensor 4 Steering column upper shaft 5 Tilt lever 6 Spring 7 Telescopic motor 8 Telescopic sensor Remove combination switch from upper jacket tube Remove tilt motor and sensor from jacket tube assembly Remove telescopic motor and sensor from jacket tube assembly Remove snap ring from steering column upper shaft Remove upper jacket tube Remove mounting nuts and remove steering column upper shaft from jacket tube assembly eee de Steering Lock 1 Break self shear type screws with a drill or other appropriate tool 2 Ins
30. w to install lower joint to power steer ing gear 1 Setrear cover cap projection into slot A in the gear sub assem bly 2 Lock steering wheel by turning steering wheel clockwise by 60 from neutral position 3 Install lower joint to power steering gear while keeping position shown at steps 1 and 2 Keep slit in lower section of lower joint off rear cover cap projection 4 Unlock steering and set steering wheel in the neutral position 5 Check that rear cover cap projection is correctly positioned rela tive to slot A in the gear sub assembly as shown in the illustration PGIAO008bE Revision 2004 April PS 16 2002 Q45 POWER STEERING GEAR AND LINKAGE EGS00074 Component LHD models SEC 492 b ba V P ka 7 12 0 7 1 2 61 104 QU Solenoid valve D 16 21 1 6 2 1 12 15 Rear housing assembly P4 ee TC Pinion seal ring 9 EE Jw 7 39 59 4 0 6 0 29 43 Adjusting E L O bd screw P2 P Washer 629 Oy i Lo disc 0 20 26 9 Q ds AX assembly Erf 2 0 2 7 14 20 of og we NS Washer Ug YS Spring seat E Retainer_ E e Pinion to Rack oil seal X Rack seal ring 9 E i 33 Gear housing Center housing 0 Rack assembly NC O ring 69 Cylinder tube 0 20 26 2 0 2 7 14 20 End cover assembly D 59 74 Rack oil seal X Dust boot N Cotter pin N mem iem PA 64 108 Tie r
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