1995 TOYOTA SUPRA oil pressure

2. MEASURE PS VANE PUMP ROTATING TORQUE
(a) Check that the shaft rotates smoothly without abnormal
noise.
(b) Temporarily install the pulley set nut, and using a torque
wrench, check the pump rotating torque.
Rotating torque: 0.2 NVm (2.5 kgfVcm, 2.2 in.Vlbf) or less
3. 2JZ±GE:
REMOVE OIL RESERVOIR
(a) Remove the 3 bolts.
(b) Remove the O±ring from the reservoir.
4. 2JZ±GTE:
REMOVE SUCTION PORT UNION
(a) Remove the bolt.
(b) Remove the O±ring from the union.
5. REMOVE PRESSURE PORT UNION, FLOW CONTROL
VALVE AND SPRING
Remove the O±ring from the union.
6. REMOVE REAR HOUSING
Remove the 2 bolts.
7. REMOVE CAM RING, ROTOR AND 10 VANE PLATES
NOTICE: Take care to not drop the vane plates.
8. REMOVE 2 STRAIGHT PINS
9. REMOVE GASKET
10. REMOVE VANE PUMP SHAFT WITH BEARING
(a) Using snap ring pliers, remove the snap ring from the front
housing.
(b) Wind vinyl tape on the serrated part of the shaft.
(c) Using a press, press out the shaft with the bearing.
11. REMOVE SIDE REAR PLATE AND WAVE WASHER
(a) Using a plastic hammer, tap the rear housing on the shaded
area until the plate and washer come off.
(b) Remove the 2 O±ring from the rear housing.
± STEERINGPOWER STEERING VANE PUMPSR±27

6. INSTALL 10 VANE PLATES
Install the plate with the round end facing outward.
7. INSTALL GASKET
Install a new gasket to the front housing.
8. INSTALL SIDE REAR PLATE
Align the holes of the plate and straight pins.
NOTICE: Make sure you install the plate facing the cor-
rect direction.
9. INSTALL WAVE WASHER
Install the washer so that its protrusions fit into the slots in the
side rear plate.
10. INSTALL REAR HOUSING
(a) Coat 2 new O±rings with power steering fluid.
(b) Install the 2 O±ring to the housing.
(c) Torque the 2 bolts.
Torque: 17 NVm (170 kgfVcm, 12 ftVlbf)
11. I N S TA L L S P R I N G , F L O W C O N T R O L VA LV E A N D
PRESSURE PORT UNION
(a) Coat a new O±ring with power steering fluid and install it to
the union.
(b) Torque the union.
Torque: 83 NVm (850 kgfVcm, 61 ftVlbf)
12. 2JZ±GTE:
INSTALL SUCTION PORT UNION
(a) Install a new O±ring to the union.
(b) Torque the bolt.
Torque: 13 NVm (130 kgfVcm, 9 ftVlbf)
13. 2JZ±GE:
INSTALL OIL RESERVOIR
(a) Coat a new O±ring with power steering fluid and install it to
the reservoir.
(b) Torque the 3 bolts.
Torque:
Front side bolt: 13 NVm (130 kgfVcm, 9 ftVlbf)
Rear side bolts: 17 NVm (170 kgfVcm, 12 ftVlbf)
14. MEASURE PS VANE PUMP ROTATING TORQUE
(See page SR±27)
± STEERINGPOWER STEERING VANE PUMPSR±31

15. 2JZ±GE:
INSTALL VANE PUMP PULLEY
Using SST to stop the pulley rotating, torque the nut.
SST 09960±10010
Torque: 43 NVm (440 kgfVcm, 32 ftVlbf)
POWER STEERING VANE PUMP
INSTALLATION
1. INSTALL VANE PUMP ASSEMBLY
Torque the 2 bolts.
Torque: 58 NVm (590 kgfVcm, 42 ftVlbf)
2. CONNECT PRESSURE FEED TUBE
Using a spanner (24 mm) to hold the pressure port union,
torque the union bolt with a new gasket.
HINT: Make sure the stopper is touching the pump housing
as shown, then torque the union bolt.
Torque: 49 NVm (500 kgfVcm, 36 ftVlbf)
3. 2JZ±GTE:
INSTALL VANE PUMP PULLEY
Using SST to stop the pulley rotating, torque the nut.
SST 09960±10010
Torque: 43 NVm (440 kgfVcm, 32 ftVlbf)
4. 2JZ±GE:
CONNECT RETURN TUBE
5. 2JZ±GTE:
CONNECT OIL RESERVOIR TO PUMP HOSE
6. 2JZ±GTE:
INSTALL AIR HOSE NO.5
7. INSTALL BATTERY
8. INSTALL ENGINE UNDER COVER
Install the 10 screws. SR±32
± STEERINGPOWER STEERING VANE PUMP

SERVICE SPECIFICATIONS
SERVICE DATA
 Steering wheel freeplay Maximum 30 mm (1.18 in.)
 STEERING COLUMN 
  Pawl stopper Mark 
 1 or A 12.68±12.74 mm (0.4992±0.5016 in.)
 2 or B 12.61±12.67 mm (0.4965±0.4988 in.)
 3 or C 12.54±12.60 mm (0.4937±0.4961 in.)
 4 or D 12.47±12.53 mm (0.4909±0.4933 in.) 5 or E 12.40±12.46 mm (0.4882±0.4906 in.) 6 or F 12.33±12.39 mm (0.4854±0.4878 in.) 
7 or G
 
12.26±12.32 mm (0.4827±0.4850 in.) 
 PS ON±VEHICLE INSPECTION
 
 
  Maximum rise of oil level Below 5 mm (0.20 in.)
  Oil pressure at idle speed with valve closed Minimum 7,845 kPa (80 kgf/cm2, 1,140 psi)
  Steering effort at idle speed Maximum 0.4 NVm (3.6 kgfVcm, 3.1 in.Vlbf)
 PS VANE PUMP 
  Rotor shaft bushing oil clearance STD 0.03±0.05 mm (0.0012±0.0020 in.)
  Rotor shaft bushing oil clearance Maximum 0.07 mm (0.0028 in.)
  Vane plate to rotor groove clearance Maximum 0.03 mm (0.0012 in.)  Vane plate height Minimum 8.6 mm (0.339 in.)  Vane plate thickness Minimum 1.40 mm (0.0551 in.) 
  Vane plate length Minimum
 
 14.99 mm (0.5902 in.)
  Vane plate length Rotor and cam ring mark 
 NONE 14.999±15.001 mm (0.59051±0.59059 in.)
 1 14.997±14.999 mm (0.59043±0.59051 in.)
 2 14.995±14.997 mm (0.59035±0.59043 in.)
 3 14.993±14.995 mm (0.59027±0.59035 in.)
 4 14.991±14.993 mm (0.59020±0.59027 in.)
 Flow control spring length Minimum 33 mm (1.30 in.)
 Pump rotating torque 0.2 NVm (2.5 kgfVcm, 2.2 in.Vlbf) or less PS GEAR HOUSING 
 Steering rack runout Maximum 0.30 mm (0.0118 in.) 
 Total preload
 
 1.0±1.9 NVm (10±20 kgfVcm, 8.7±17.4 in.Vlbf)
 Solenoid valve resistance 6±11

± STEERINGSERVICE SPECIFICATIONSSR±51

TORQUE SPECIFICATIONS
 Part tightened NVm kgfVcm ftVlbf
 STEERING COLUMN   
  Steering wheel set nut 35 360 26  Steering wheel pad set screw 7.1 72 62 in.Vlbf  Column assembly set nut 25 260 19 
 Intermediate shaft x Sliding yoke
 
35
 
360
 
26 
  Tilt memory bolt x Square nut
 
 6.4
 
 65
 
 56 in.Vlbf
  Tilt lever assembly set screw 4.7 48 42 in.Vlbf
  Tilt pawl set nut 5.9 60 52 in.Vlbf
  Tilt lever retainer set nut 15 150 11
  Tilt memory bolt set nut 5.9 60 52 in.Vlbf
  Turn signal bracket set bolt 8.8 90 78 in.Vlbf
  Sliding yoke 35 360 26
  Compression set screw 6.4 65 56 in.Vlbf PS VANE PUMP   
  PS vane pump set bolt 58 590 42 
  Union bolt
 
 49
 
 500
 
 36
  Vane pump pulley set nut 43 440 32
  Front housing x Rear housing 17 170 12
  Pressure port union 83 850 61
  Oil reservoir set bolt (2JZ±GE) Front side bolt 13 130 9
 Rear side bolts 17 170 12
  Suction port union set bolt (2JZ±GTE) 13 130 9
 PS GEAR HOUSING   
  Tie rod end x Steering knuckle 49 500 36  Control valve shaft x Intermediate shaft 35 360 26  Pressure feed and return tube set union bolts 49 500 36 
  Gear housing set bolt and nut
 
 75
 
 770
 
 55
  Pressure control valve assembly x Control valve housing 18 185 13
  Control valve housing set bolt 18 185 13
  Self±locking nut 39 400 29
  Rack housing cap 69 700 501
  Rack guide spring cap lock nut 56 567 41
  Rack end 90 914 66
  Tie rod end lock nut 56 570 41  Turn pressure tube union nut 24 243 17  Turn pressure tube union bolt 34 350 25
SR±52± STEERINGSERVICE SPECIFICATIONS

(e) Pull the joined wires to either end. Make sure that they are
joined firmly by the sleeve.
NOTICE: If the joined wires come loose the splice is de-
fective, so replace the sleeve and repeat the procedure.
(f) Crimp both ends of the sleeve with the crimping tool at the
ºINSº position.
3. PROTECT JOINED SECTION
Wrap silicon tape around the joins to protect them from water.
HINT:
wBefore starting the operation, thoroughly wipe dirt and
grease off the sections to be joined.
wIf the adhesive surfaces of 2 tapes come in contact, they
will stick together and will not come apart, so do not
remove the backing film except when using the tape.
wDo not let oil and dust, etc., get on the tape surface.
(a) Ready about 100 mm (3.94 in.) of silicon tape
(Part No. 08231±00045) and peel off the film.
(b) Stretch the silicon tape until its width is reduced by half.
(c) About 10 mm (0.39 in.) from the end of the pressure contact
sleeve, wrap the silicon tape around the sleeve 3 or more
times while stretching the tape.
(d) Wrap the remaining part of sleeve with half of the tape
overlapping at each turn.
(e) Firmly wrap the tape 2 times or more about 10 mm (0.39 in.)
from the other end of the pressure±contact sleeve, then wrap
the tape back towards the start again and firmly finish winding
the tape around the center of the sleeve.
± SUPPLEMENTAL RESTRAINT SYSTEMWIRE HARNESS AND CONNECTORRS±39

GENERAL INSPECTION
1. INSPECT TIRE
(a) Check the tires for wear and for the proper inflation pressure.
Cold tire inflation pressure (2JZ±GE)
 
 Tire size 
 
Front
kPa (kgf/cm2, psi)
 
 
Rear
kPa (kgf/cm2, psi)
 225/50ZR16 230 (2.3, 33) ±±
 245/50ZR16 ±± 250 (2.5, 36)
Cold tire inflation pressure (2JZ±GTE)
 
 
Tire size 
 
Front
kPa (kgf/cm2, psi)
 
 
Rear
kPa (kgf/cm2, psi)
 235/45ZR17 250 (2.5, 36) ±±
 255/40ZR17 ±± 250 (2.5, 36)
(b) Check the tire runout.
Tire runout:
Less than 1.4 mm (0.055 in.)
2. INSPECT WHEEL BALANCE
(a) Check and adjust the Off±the±car balance.
(b) If necessary, check and adjust the On±the±car balance.
Unbalance after adjustment:
5.0 g (0.011 lb) or less
3. CHECK WHEEL BEARING LOOSENESS
(a) Check the backlash in bearing shaft direction.
Maximum: 0.05 mm (0.0020 in.)
(b) Check the axle hub deviation.
Maximum: 0.05 mm (0.0020 in.)
4. CHECK FRONT SUSPENSION FOR LOOSENESS
5. CHECK STEERING LINKAGE FOR LOOSENESS
6. CHECK BALL JOINT FOR LOOSENESS
7. CHECK SHOCK ABSORBER WORK PROPERLY
wCheck for oil leak
wCheck mounting bushings for wear
wBounce front and rear of the vehicle
± SUSPENSION AND AXLEGENERAL INSPECTIONSA±3

MATRIX CHART OF PROBLEM SYMPTOMS
When the malfunction code is not confirmed in the diagnostic trouble code check and the problem still can not
be confirmed in the basic inspection, proceed to this matrix chart and troubleshoot according to the numbered
order given below.
EG±438EG±438EG±453EG±460EG±463EG±465EG±470EG±472EG±475EG±457EG±481AC±62ST±3, 12IG±4IG±5IG±7IG±7EG±9AT2±81BE±123IN±35
See page
Suspect area
Symptom
Engine does not crank
No initial combustion
No complete combustion
Engine cranks normally
Cold engine
Hot engine
Incorrect first idle
High engine idle speed
Low engine idle speed
Rough idling
Hunting
Hesitation/Poor acceleration
Muffler explosion (after fire)
Surging
Soon after starting
After accelerator pedal depressed
After accelerator pedal released
During A/C operation
When shifting N to D
Does notstart
Difficult tostart
Poor Idling
Poor
Driveability
Engine Stall
Volume air flow meter circuitECM power source circuitPark/neutral position switch circuitSwitch condition signal circuitEGR systemStarter signal circuitStarter and Starter relayA/C signal circuit (Compressor circuit)VSV circuit for fuel pressure controlFuel pump control circuitIAC valve circuitInjector circuitBack up power source circuitIgnition coilSpark plugIgnition signal circuit (Spark test)CompressionA/T faultyDistributorEngine control module (ECM)Theft deterrent ECU
EG±408± ENGINE2JZ±GE ENGINE TROUBLESHOOTING