Page 855 of 1395

Troubleshooting
Fluid Leaks
Check the gearbox assembly for oil leaks carefully. Oil can leak out ot various points, depending on location of the faulty
oil seals/seal rings. Check the following before removing the gearbox from the frame.
Steering GearboxLeaking from the oil seal on thetop of the valve housing.Replace the valve oil seal fromthe valve housing.
Leaking from cylinder end intoleft tie rod boot.Replace the valve oil seal fromthe pinion shaft.
Replace the cylinder end seal onthe valve body unit side.
Leaking from cylinder end intoright tie-rod boot.Replace the cylinder end seal onthe cylinder end side.
Leaking lrom the shaft upper endsection or pin engagement sec-tion of the pinion shaft.Replace the valve body unit.
Tighten the connector. It it's stillleaking, replace the line, cylinderor valve housing.
Leaking from cylinder line A or Bconnections (at tlare nut).
Leaking caused by a damagedcylinder line A or B.Replace cylinder line A or B.
Leaking from pump outlet hoseand return line joint fitting on thevalve body unit {at tlare nut}.
Tighten the connector. ll it's stillleaking, replace the line, joint fit-ting or valve housing,
17-10
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Page 856 of 1395
Pump oLrtlet hose(high-pressure)
Pump in let hose(low pressure)
Beplace the housing O-rings.if the housing still leaks, replacethe pump.
Reservoir is overfilled.Pull off the hose and drain thereservoir to the proper level.
Air leak in suction side of the sys-tem (reservoir, pump inlet hose,front pump seal).
Tighten the fifting. lf it's still leak-ing, replace the O-ring or pump
outlet hose,Leaking at the threaded fifting.
Leaking at the swaged joint.Replace the pump outlet hose.
Leaking because of damage, dete'rioration, or improper assembly,Replace or repair as necessary.
17-1
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Page 858 of 1395
Steering Linkage and Gearbox
PINION SHAFT GROMMETInspoct for damage and deterioration.
STEERING JOINTSCheck for loose joint bolts.
NE-ROD LOCKNUTCheck Ior loose locknut.
Inspect for loose mounting bolts.GEARBOX MOUNTING CUSHIONSlnsp6ct for dgterioration.BOOTlnspect for damag€ and d€terioration.
BALL JONT AOOTInspoct lor damage and deterioration.S€e page 17-50 for replacemont.
END AAtL JOINTInspect for faulty movementano oamag€.
17-13
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Page 861 of 1395

lnspection and Adjustment
Pump Pressure Gheck With T/N 07406 - 0010001
Check the fluid pressure as follows to determine whetherthe trouble is in the pump orgearbox.
1. Check the powsr steering fluid level (see page 17-15), and pump belt tension (see page 17-14).
2. Disconnect the pump outlet hose from the pump
outlet with care so as not to spill the pow€r steeringiluid on the frame and other pans. thon install theP/S joint adapter (pumpl on the pump outlet.
6 x 1.0 mm BOLT{Part oftool)
FEED HOSE FITTING
PUMP OUTLET HOSE
11 N.m ll.1 kgl.m, E lbf.ftl
P/S PRESSURE GAUGE07('6 - 0010001
6 x t.0 mm BOLT{Part oftool)11 N.m(1.1 kgt m, 8 lbf.tr)
Connect the P/S joint adapter (hose) to the p/S pres-
sure gauge, then connect the pump outlet hose tothe P/S ioint adspter (hose).
Install the P/S pressure gauge to the p/S joint
adapter (pump),
17-16
5. Fully open the shut-off valve.
PRESSURECONTROL VALVE
6. Fully open the pressure controlvatve.
7. Start the engine and let it idle.
8. Turn the steering wheel from lock-to-lock severaltimes to warm the fluid to operating temperature.
9, Measure steady-state fluid pressure while the engineis idling. lf the pump is in good condition, the gauge
should read less than 1,500 kPa (15 kgf/cmr, 213 psi).
lf it reads high, check the outlet hose or valve bodvunit (see General Troubleshooting).
10. Close the pressure control valve, then close theshut-off valve gradually until the pressure gauge
nsedle is stable. Read the pressure.
CAUTION: Do not k€ap tha prca3un control valvoclorod mo.c thon 5 srconds or thc pump cluld bodamEgod by ovor-hoating.
11. lmmodiately open the pressure controlvalve fullv.
lf the pump is in good condition, the gauge shouldread at least 6,900 - 7,800 kpa (70 - 80 kgflcmr,'1,000 - 1.140 psi). A low reading means pump out-put is too low for full assist. Repair or replace theDUMD.
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Page 862 of 1395

Pump Pressure Check With T/N 07406 -
Check the fluid pressure as follows to determine whether
the trouble is in the pump or gearbox.
1. Check the power steering tluid level (see page 17-
151, and pump belt tension (see page 17-14).
2. Disconnect the pump outlet hose from the pump
outlet with care so as not to spill the power steering
fluid on the frame and other parts, then install the
P/S joint adapter (pump) on the pump outlet.
6 x 1.0 mm BOLT(Part oftool)
FEED HOSE HfNNG
PUMP OUTLET HOSE
1'l N.m 11.1 kgf.m,8lbf ft)
P/S PRESSURE GAUGE07406 - 001000A
6 x 1.0 mm BOLT(Part ol tool)11 N.m(1.r kg{.m,8lbf'ft|
Connect the P/S joint adapter (hose) to the P/S pres-
sure gauge, then connect the outlet hose to the P/S
joint adapter (hose).
Install the P/S pressure gauge to the P/S joint
adapter (pumpl.
001000A
5. Open the pressure controlvalve fully.
PRESSURECONTROL VALVE
7.
10.
Start the engine and let it idle.
Turn the steering wheel from lock-to-lock several
times to warm the tluid to operating temperature.
Measure steady-state fluid pressure while the engine
is idling. It the pump is in good condition, the gauge
should read 1,500 kPa (15 koflcm' ,213 psi). lf it reads
high. check the outlet hose or valve body unit {see
General Troubleshooting),
Close the-pressure control valve gradually and read
the oressure.
CAUTION: Do not keep the pressurs control valve
closed more then 5 seconds or the pump could bo
damaged by overheating.
lmmediately open the pressure controlvalve fully.
lf the pump is in good condition, the gauge should
read at least 6,900 - 7;800 kPa (70 - 80 kgflcm' ,
1,000 - 1.140 psi), A low reading means pump out-
Dut is too low for {ull assist. Repair or replace the
oumo.
17-17
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Page 865 of 1395

Steering Column
Removal/lnstallation
SRS components are located in this area. Review the
SRS component locations, precautions, and procedures
in the SRS section (24) before performing repairs or ser-
vice.
Note these items when removing the steering column:. Before removing the steering column, remove thedriver's airbag assembly and cable reel (see section24).
. Before removing or installing, set the column shaft inthe neutral position by pulling up the steering columnto uppermost position, then lower it 8 mm (5/16 in).Tighten tilt lever.
FULL STROKE:23 mm 10.9 in)
MAXIMUM UPPER8 mm (5/16)
POSTTTON
Remove the steering wheel (see page 17-18).
Remove the driver's side dashboard lower cover
and knee bolster (see section 20),
Remove the column covers.
With A"/T, move the shift lever to the E position,
and remove the shift cable from the column. andset it aside (see section 14).
Remove the combination switch assembly from thesteering column shaft by disconnecting the connec-
tors, and removing the two screws.
Disconnect the steering joint from the engine com-panment.
Remove the steering column by removing theattaching nuts and bolts.
7.
1.
MAXIMUM LOWERPOSTTTON
SHAFT CENTER
111 mm 100 mm5mm
JOINT COVERBOOT BAND
9,8 N.m l r .0 kgf.m, 7 lbf.fO
JOINT DUST SEAL
22 N.m (2.2 kgl.m, 16lbtftl
TILT LEVER
UPPER ATTACHING NUTS16 N.m lr.6 kgf.m, 12 lbf.ftl
UPPER COLUMN COVER
COMAINANON SWITCH ASSEMBLY
JOINT
COLUMN BMCKET
LOWER ATTACHING BOLTS39 N.m lir,o kgf.m, 29 lbf.ft)
17-20
LOWER COLUMN COVER
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Page 866 of 1395

8. Installation is the reverse ofthe removal procedure.
Note these items during installation:
. Be sure the wires are not caught or pinched by
any parts when installing the column.
a Make sure the wire harness is routed and fas-
tened properly.
. Make sure the connectors are properly connected.
. Make sure the steering joint is connected as fol-
lows:
a. lnsert the uDper end of the steering joint onto
the steering shaft (line up the bolt hole with
the flat ot the shaft).
b. Slip the lower end of the steering ioint onto
the Dinion shaft (lins up the bolt hole with the
groove around the shaft). and installthe lower
ioint bolt. Be sure that the lower joint bolt is
securely in the groove in the pinion shaft'
c. Pull on the steering joint to make sure that the
steering joint is JullY seated.
Then install the upper joint bolt and tighten it.
22 N.m (2.2 kgf.m, 16lbt.ftl
UPPER JOINT BOLT
Bolt must Iine uPwith fl6t on shaft.
Flat ponion.
SIEERING JOIMT
STECRING JOINT
LOWER JOINT BOLTBolt must line up withgroove around on shaft,
Inspection
Check the steering column ball bearing and the steer-
ing joint bearings for play and proper movement. lf
there is noisy or if there is excessive play, replace the
steering column as an assemblY
Check the retaining collar for damage. lf it is dam-
aged, replace the retaining collar.
PLASl'tCINJECTIONS
ABSOBBINGPLATE
SHIFT I.EVER
. Check the absorbing plates, absorbing plate guides
and sliding capsules Jor distortion and breakage.
ReDlace the column as an assembly if they are dis-
torted or broken.
SLIDING CAPSUIIThis part is attachedto the column bracketwith the plastic injections.
FETAINING COLLAR
ABSORBINGPLATE GUIDE
|GNMON SWTTCHSee section 23.(cont'd)
17-21
See section 14.
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Page 868 of 1395

Power Steering Hoses, Lines
Fluid Leakage Inspection
HOSES and LINES
. lnspect hoses for damage. leaks. interference and twisting
. Inspect fluid linesfor damage, rusting and leakage.
. Check for leaks at hose and line joints and connections.
FEED HOSE37 N.m 13.8 kgf.m, 27 lbtft)RETURN LINE JOINT28 N.m (2.9 kgf.m.21 lbf.ftl
CYLINDER LINES17 N.m (1.7 kgf.m. 12 lbf.ftl
FOWER STEERING PRESSURE SWITCH12 N.m (1.2 kgf.m,8.7 lbtft)
26 N.m (2.7 kgf.m, 20 lbf.ft)
GEARBOX .nd VALVE BODY UNllCheck for leaks at the mating surfaceand flare nut connections.
CYLINDER
FEED HOSE11 N.m('1.1 kgt.m, 8 lbf.ftl
SUCTION HOSE
PUMP ASSEMBLYCheck for leaks atthe pump
seal. inlet and outlet fittings.
Note these items during installation:
. Connect each hose to the corresponding line securely
until it contacts the stop on the line. Install the clamp
or adjustable clamp at the specified distance from the
hose end as shown.
. Check all clamDs for deterioration or deformation;
replace with the clamps new ones if necessary.
. Add the recommended power steering fluid to the
specified level on the reservoir and check for leaks.
ADJUSTABLE HOSE CLAMP: la)
. Position the adjustable hose clamps at the points
indicated by (a) in the drawing above.
. Slide the hose over the line until it contacts the stop.
HOSE CLAMP: lbl
. Position the hose clamps at the
(b) in the drawing above.
. Slide the hose over the line until
Replacement
10.01 - 0.22 in)
points indicatsd by
it contacts the stop,
2.0 - 4.0 mm10.08 - 0.16 inl2.5 - 5.5 mm{0.01 - 0.22 in}17 -23
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