steering wheel adjustment ISUZU AXIOM 2002 Service Repair Manual

SECTION TABLE OF CONTENTS
GENERAL INFORMATION
0AGeneral Information
0BMaintenance and Lubrication
WORKSHOP MANUAL
HEATING, VENTILATION AND AIR
CONDITIONING
1AHVAC System
STEERING
2APower-Assisted System
AXIOM
(UPR/S)SUSPENSION
3CFront Suspension
3DRear Suspension
3EWheel and Tire System
3FIntelligent Suspension System
DRIVELINE/AXLE
4A1Differential (Front)
4A2Differential (Rear)
4B1Driveline Control System
4B2Driveline Control System (TOD)
4CDrive Shaft System
4D2Transfer Case (TOD)
FOREWORD
This manual includes special notes, impor tant points, service data,
precautions, etc. That are needed for the maintenance, adjustments,
service, removal and installation of vehicle components.
All information, illustrations and specifications contained in this manual
are based on the latest product information available at the time of
publication.
All rights are reserved to make changes at any time without notice.
Arrangement of the material is shown in the table of contents on the
right-hand side of this page. A black spot on the first page of each
section can be seen on the edge of the book below each section title.
These point to a more detailed table of contents preceding each
section.BRAKE
5ABrake Control System
5BAnti-Lock Brake System
5CPower-Assisted Brake System
5D1Parking Brake System (4´4 model)
5D2Parking Brake System (4´2 model)
ENGINE
6AEngine Mechanical
6BEngine Cooling
6CEngine Fuel
6D1Engine Electrical
6D2Ignition System
6D3Starting and Charging System
6EDriveability and Emissions
6FEngine Exhaust
6GEngine Lubrication
6HEngine Speed Control System
6JInduction
TRANSMISSION
7AAutomatic Transmission
7A1Transmission Control System
BODY AND ACCESSORIES
8ALighting System
8BWiper/Washer System
This manual applies to 2002 models.8CEnter tainment
8DWiring System
8EMeter and Gauge
8FBody Structure
8GSeats
8HSecurity and Locks
8ISun Roof/Convertible Top
8JExterior/Interior Trim
RESTRAINTS
9ASeat Belt System
9JSupplemental Restraint System (Air Bag System)
9J1Restraint Control System
CONTROL SYSTEM
10ACruise Control System

0B±5 MAINTENANCE AND LUBRICATION
Explanation of Complete Vehicle
Maintenance Schedule
Brief explanations of the services listed in the preceding
Maintenance Schedule are presented below.
Replace all questionable parts and note any necessary
repairs as you perform these maintenance procedures.
Front and Rear Axle Lubricant
Replacement
Check the lubricant level after every 7,500 miles (12,000
km) of operation and add lubricant to level of filler hole if
necessary.
Replace the front and rear axle lubricant at 15,000 miles
(24,000 km) and 30,000 miles (48,000 km) and after
every 30,000 miles (48,000 km) of operation thereafter.
Air Cleaner Element Replacement
Replace the air cleaner under normal operating
conditions every 30,000 miles (48,000 km).
Operation of the vehicle in dusty areas will necessitate
more frequent replacement.
Spark Plug Replacement
Replace the plugs at 100,000 miles (160,000 km)
intervals with the type specified at the end of this section.
Cooling System Service
Drain, flush and refill system with new engine coolant.
Refer to
ªRecommended Fluids and Lubricantsº in this
section, or ENGINE COOLING (SEC.6B).
Timing Belt Replacement
Replacement of the timing belt is recommended at every
100,000 miles (160,000 km).
Failure to replace the timing belt may result in serious
damage to the engine.
Valve Clearance Adjustment
Incorrect valve clearance will result in increased engine
noise and reduced engine output.
Retorque the camshaft bracket bolts before checking and
adjusting the valve clearance.
Check and adjust the valve clearance whenever
increased engine noise is heard.
Tire Rotation
Rotate tires every 7,500 miles (12,000 km).
Front Wheel Bearings Lubricant
Replacement (Vehicles Produced Before
July/31/2001)
Clean and repack the front wheel bearings at 30,000
miles (48,000 km) intervals.
Refer to DRIVE SHAFT SYSTEM (SEC. 4C).
Front Wheel Bearings Check (Vehicles
Produced After Aug./1/2001)
Inspect hub unit bearing at every 60,000 miles (96,000
km).
If there is abnormal condition, replace hub unit bearing.
Radiator Core and Air Conditioning
Condenser Cleaning
Clean the front of the radiator core and air conditioning
condenser, at 60,000 miles (96,000 km) intervals.
Fluid Level Check
A fluid loss in any system (except windshield
washer) may indicate a problem. Repair the system
at once.
Engine oil level
Check level and add if necessary. The best time to check
the engine oil level is when the oil is warm. After stopping
the engine with the vehicle on a level surface, wait a few
minutes for the oil to drain back to the oil pan. Pull out the
oil level indicator (dipstick). Wipe it clean and push the oil
level indicator back down all the way. Pull out the oil level
indicator, keeping the tip down, and look at the oil level on
it.
Add oil, if needed, to keep the oil level above the ªADDº
mark and between the ªADDº and ªFULLº marks in the
operating range area. Avoid overfilling the engine since
this may cause engine damage. Push the oil level
indicator back down all the way after taking the reading.
If you check the oil level when the oil is cold, do not run the
engine first. The cold oil will not drain back to the pan fast
enough to give a true oil level.
Engine coolant level and condition
Check engine coolant level in the coolant reservoir and
add engine coolant if necessary. Inspect the engine
coolant and replace it if dirty or rusty.
Windshield washer fluid level
Check washer fluid level in the reservoir and add if
necessary.
Power steering system reservoir level
Check and keep at the proper level.
Brake master cylinder reservoir level
Check fluid. Keep fluid at proper level. A low fluid level can
indicate worn disc brake pads which may need to be
serviced.
Hydraulic clutch system
Check fluid level in the reservoir. Add fluid as required.
Battery fluid level
Check fluid level in the battery.
Fluid Leak Check
Check for fuel, water, oil or other fluid leaks by looking at
the surface beneath the vehicle after it has been parked
for a while. Water dripping from the air conditioning
system after use is normal. If you notice gasoline fumes or
fluid at any time, locate the source and correct it at once.
Engine Oil and Oil Filter Replacement
Always use API SE, SF, SG, SH or ILSAC GF±1 quality
oils of the proper viscosity.
When choosing an oil, consider the range of
temperatures the car will be operated in before the next oil
change. Then, select the recommended oil viscosity from
the chart.

0B±6MAINTENANCE AND LUBRICATION
Always change the oil and the oil filter as soon as possible
after driving in a dust storm.
Engine Cooling System Inspection
Inspect the coolant/anti±freeze. If the coolant is dirty or
rusty, drain, flush and refill with new coolant. Keep coolant
at the proper mixture for proper freeze protection,
corrosion inhibitor level and best engine operating
temperature. Inspect hoses and replace if cracked,
swollen or deteriorated. Tighten the hose clamps if
equipped with screw±type clamps. Clean outside of
radiator and air conditioning condenser. Wash filler cap
and neck. To help ensure proper operation, a pressure
test of both the cooling system and the cap is also
recommended.
Exhaust System Inspection
Visually inspect the exhaust pipes, muffler, heat shields
and hangers for cracks, deterioration, or damage.
Be alert to any changes in the sound of the exhaust
system or any smell of fumes. These are signs the system
may be leaking or overheating. Repair the system at
once, if these conditions exist. (See also ªEngine Exhaust
Gas Safetyº and ªThree Way Catalytic Converterº in the
Owner's manual.)
Fuel Cap, Fuel Lines, and Fuel Tank
Inspection
Inspect the fuel tank, the fuel cap and the fuel lines every
60,000 miles (96,000 km) for damage which could cause
leakage.
Inspect the fuel cap and the gasket for correct sealing and
physical damage. Replace any damaged parts.
Drive Belt Inspection
Check the serpentine belt driving for cracks, fraying,
wear, and correct tension every 30,000 miles (48,000
km). Replace as necessary.
Wheel Alignment, Balance and Tires
Operation
Uneven or abnormal tire wear, or a pull right or left on a
straight and level road may show the need for a wheel
alignment. A vibration of the steering wheel or seat at
normal highway speeds means a wheel balancing is
needed. Check tire pressure when the tires are ªcoldº
(include the spare).
Maintain pressure as shown in the tire placard, which is
located on the driver's door lock pillar.
Steering System Operation
Be alert for any changes in steering operation. An
inspection or service is needed when the steering wheel
is harder to turn or has too much free play, or if there are
unusual sounds when turning or parking.
Brake Systems Operation
Watch for the ªBRAKEº light coming on. Other signs of
possible brake trouble are such things as repeated pulling
to one side when braking, unusual sounds when braking
or between brake applications, or increased brake pedaltravel. If you note one of these conditions, repair the
system at once.
For convenience, the following should be done when
wheels are removed for rotation: Inspect lines and hoses
for proper hookup, bindings, leaks, crack, chafing etc.
Inspect disc brake pads for wear and rotors for surface
condition.
Inspect other brake parts, including parking brake drums,
linings etc., at the same time. Check parking brake
adjustment.
Inspect the brakes more often if habit or conditions
result in frequent braking.
Parking Brake and Transmission Park
Mechanism Operation
Park on a fairly steep hill and hold the vehicle with the
parking brake only. This checks holding ability. On
automatic transmission vehicles, shifting from ªPº
position to the other positions cannot be made unless the
brake pedal is depressed when the key switch is in the
ªONº position or the engine is running.
WARNING: B E F O R E C H E C K I N G T H E S TA R T E R
SAFETY SWITCH OPERATION BELOW, BE SURE TO
HAVE ENOUGH ROOM AROUND THE VEHICLE.
THEN FIRMLY APPLY BOTH THE PARKING BRAKE
AND THE REGULAR BRAKE. DO NOT USE THE
ACCELERATOR PEDAL. IF THE ENGINE STARTS,
BE READY TO TURN OFF THE KEY PROMPTLY.
TAKE THESE PRECAUTIONS BECAUSE THE
VEHICLE COULD MOVE WITHOUT WARNING AND
POSSIBLY CAUSE PERSONAL INJURY OR
PROPERTY DAMAGE.
Starter Safety Switch Operation
Check by trying to start the engine in each gear while
setting the parking brake and the foot brake. The starter
should crank only in ªPº (Park) or ªNº (Neutral).
Accelerator Linkage Lubrication
Lubricate the accelerator pedal fulcrum pin with chassis
grease.
Steering and Suspension Inspection
Inspect the front and rear suspension and steering
system for damaged, loose or missing parts or signs of
wear. Inspect power steering lines and hoses for proper
hookup, binding, leaks, cracks, chafing, etc.
Body and Chassis Lubrication
Lubricate the key lock cylinders, the hood latch, the hood
and door hinges, the door check link, the parking cable
guides, the underbody contact points, and the linkage.
Propeller Shaft Inspection and Lubrication
Check the propeller shaft flange±to±pinion bolts for
proper torque to 63 Nwm (46 lb ft) for front and rear
propeller shaft.

POWER±ASSISTED STEERING SYSTEM2A±1
AXIOM
STEERING
POWER-ASSISTED STEERING SYSTEM
CONTENTS
Service Precaution 2A±2. . . . . . . . . . . . . . . . . . . . . .
Diagnosis 2A±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Description 2A±8. . . . . . . . . . . . . . . . . . . . .
Power Steering System Test 2A±10. . . . . . . . . . . . . .
Maintenance 2A±11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid Level 2A±11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bleeding The Power Steering System 2A±11. . . . . .
Bleeding Procedure 2A±11. . . . . . . . . . . . . . . . . . . . .
Flushing The Power Steering System 2A±11. . . . . .
Steering Wheel Free Play Inspection 2A±12. . . . . .
Front End Alignment Inspection and
Adjustment 2A±12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 2A±16. . . . . . . . . . . . .
Special Tools 2A±17. . . . . . . . . . . . . . . . . . . . . . . . . .
Power Steering Unit 2A±18. . . . . . . . . . . . . . . . . . . . .
Power Steering Unit and Associated Parts 2A±18
Removal 2A±18. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation (4y2 Model) 2A±19. . . . . . . . . . . . . . . .
Installation (4y4 Model) 2A±19. . . . . . . . . . . . . . . .
Power Steering Unit Disassembled View 2A±20. .
Disassembly 2A±21. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 2A±21. . . . . . . . . . . . . . . . . .
Reassembly 2A±21. . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 2A±22. . . . . . . . . . .
Special Tools 2A±22. . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Steering Pump 2A±23. . . . . . . . . . . . . . . . . . . .
Power Steering Pump and Associated Parts 2A±23
Removal 2A±23. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 2A±23. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Steering Pump Disassembled View 2A±24
Disassembly 2A±24. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 2A±25. . . . . . . . . . . . . . . . . .
Reassembly 2A±25. . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 2A±27. . . . . . . . . . .
Transfer Gear Assembly 2A±28. . . . . . . . . . . . . . . . .
Transfer Gear Assembly and Associated
Parts 2A±28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removal 2A±28. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 2A±28. . . . . . . . . . . . . . . . . .
Installation 2A±28. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supplemental Restraint System Steering
Wheel & Column 2A±29. . . . . . . . . . . . . . . . . . . . . . .
Service Precaution 2A±29. . . . . . . . . . . . . . . . . . . .
SRS Connectors 2A±29. . . . . . . . . . . . . . . . . . . . . .
Inflator Module 2A±31. . . . . . . . . . . . . . . . . . . . . . . . . .
Inflator Module and Associated Parts 2A±31. . . . .
Removal 2A±31. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 2A±32. . . . . . . . . . . . . . . . . .
Installation 2A±32. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering Wheel 2A±33. . . . . . . . . . . . . . . . . . . . . . . . .
Steering Wheel and Associated Parts 2A±33. . . .
Removal 2A±33. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 2A±35. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combination Switch 2A±36. . . . . . . . . . . . . . . . . . . . .
Combination Switch and Associated Parts 2A±36
Removal 2A±36. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 2A±38. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lock Cylinder 2A±40. . . . . . . . . . . . . . . . . . . . . . . . . . .
Lock Cylinder and Associated Parts 2A±40. . . . . .
Removal 2A±40. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 2A±42. . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Inspection 2A±43. . . . . . . . . . . . . . . . . . . . .
Steering Column 2A±44. . . . . . . . . . . . . . . . . . . . . . . .
Steering Column and Associated Parts 2A±44. . .
Removal 2A±44. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 2A±46. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 2A±48. . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Inspection 2A±49. . . . . . . . . . . . . . . . . . . . .
Supplemental Restraint System Steering
Wheel & Column and Associated Parts 2A±50. . . .
Main Data and Specifications 2A±50. . . . . . . . . . .
Special Tools 2A±50. . . . . . . . . . . . . . . . . . . . . . . . . .

POWER±ASSISTED STEERING SYSTEM2A±3
Condition CorrectionPossible cause
Wheel HopBlister or bump on tire.Replace tire.
Improper shock absorber operation.Replace shock absorber.
Shimmy, Shake or VibrationTire or wheel out of balance.Balance wheels or replace tire/or
wheel.
Loose wheel bearings.Replace wheel bearing.
Worn steering linkage ball joints.Replace ball joints.
Worn upper or lower end ball joints.Replace ball joints.
Excessive wheel run±out.Repair or replace wheel and/or tire.
Blister or bump on tire.Replace tire.
Excessive loaded radial run±out of
tire/wheel assembly.Replace tire or wheel.
Improper wheel alignment.Check wheel alignment.
Loose or worn steering linkage.Tighten or replace steering linkage.
Loose steering unit.Tighten steering unit.
Tires not adequately inflated.Adjust tire pressure.
Loose, bent or broken front or rear
suspension parts.Tighten or replace the appropriate
suspension parts.
Faulty shock absorber.Replace shock absorber.
Hub bearing preload misadjustment.Adjust preload.
Parts in power steering valve
defective.Replace power steering unit.
Hard SteeringBind in steering linkage ball studs,
upper or lower end ball joint.Replace ball joint.
Improper wheel alignment.Check wheel alignment.
Tire not adequately inflated.Inflate tires to proper pressure.
Bind in steering column or shaft.Repair or replace.
Improper power steering system
operation.Repair or replace.
Refer to
Power steering system
diagnosis
Too Much Play In SteeringWheel bearings worn.Replace wheel bearings.
Loose steering unit or linkage.Retighten or repair.
Worn or loose steering shaft
universal joint.Retighten or replace steering shaft.
Worn steering linkage ball joints.Replace ball joints.
Worn upper or lower end ball joints.Replace ball joints.
Poor Steering Wheel ReturnabilityBind in steering linkage ball joints.Replace ball joints.
Bind in upper or lower end ball joints.Replace ball joints.
Bind in steering column and shaft.Repair or replace.
Bind in steering gear.Check and repair steering gear.
Improper wheel alignment.Adjust wheel alignment.
Tires not adequately inflated.Adjust tire pressure.
Loose steering wheel nut.Retighten.
Worn wheel bearing.Replace.

2A±12
POWER±ASSISTED STEERING SYSTEM
4. Install all the lines and hoses. Fill the system with new
power steering fluid and bleed the system as
described in Bleeding The Power Steering System.
Operate the engine for about 15 minutes.
Remove the pump return line at the pump inlet and
plug the connection on the pump. While refilling the
reservoir, check the draining fluid for contamination.
If foreign material is still evident, replace all lines,
disassemble and clean or replace the power steering
system components. Do not re-use any drained
power steering fluid.
Steering Wheel Free Play Inspection
430R200001
1. With the tires in the straight-ahead position, check the
amount of steering wheel play by turning the wheel in
both directions until the tires begin to move.
NOTE: The wheel free play should be checked with the
engine running.
Free play: 0 ± 30 mm (0 ± 1.18 in)
2. Also check the steering wheel for play and looseness
in the mount by moving it back and forth and
sideways. When test driving, check for hard steering,
steering shimmy and tendency to pull to one side.
Front End Alignment Inspection and
Adjustment
General Description
ªFront End Alignmentº refers to the angular relationship
between the front wheels, the front suspension attaching
parts and the ground.
Proper front end alignment must be maintained in order to
insure efficient steering, good directional stability and to
prevent abnormal tire wear.
The most important factors of front end alignment are
wheel toe-in, wheel camber and axle caster.Camber:
This illustration shows view from the front of the vehicle.
480RS004Camber is the vertical tilting inward or outward of the front
wheels. When the wheels tilt outward at the top, the
camber is positive (+). When the wheels tilt inward at the
top, the camber is negative (-). The amount of tilt
measured in degrees from the vertical is called the
camber angle (1). If camber is extreme or unequal
between the wheels, improper steering and excessive tire
wear will result. Negative camber causes wear on the
inside of the tire, while positive camber causes wear to the
outside.
Caster:
This illustration shows view from the side of the vehicle.
480RS005

POWER±ASSISTED STEERING SYSTEM2A±13
Caster (1) is the vertical tilting of the wheel axis either
forward or backward (when viewed from the side of the
vehicle). A backward tilt is positive (+) and a forward tilt is
negative (-). On the short and long arm type suspension
you cannot see a caster angle without a special
instrument, but if you look straight down from the top of
the upper control arm to the ground, the ball joints do not
line up (fore and aft) when a caster angle other than 0
degree is present. With a positive angle, the lower ball
joint would be slightly ahead (toward the front of the
vehicle) of the upper ball joint center line.
Toe-in:
This illustration shows view from the top of the vehicle.
480RS003Toe-in is the measured amount the front wheels are
turned in. The actual amount of toe-in is normally a
fraction of a degree. Toe-in is measured from the center
of the tire treads or from the inside of the tires. The
purpose of toe-in is to insure parallel rolling of the front
wheels and to offset any small deflections of the wheel
support system which occurs when the vehicle is rolling
forward. Incorrect toe-in results in excessive toe-in and
unstable steering. Toe-in is the last alignment to be set in
the front end alignment procedure.
Inspection
Before making any adjustments affecting caster, camber
or toe-in, the following front end inspection should be
made.
1. Inspect the tires for proper inflation pressure. Refer to
Main Data and Specifications in Wheel and Tire
System
section.
2. Make sure that the vehicle is unladen condition (With
no passenger or loading).
3. Make sure that the spare tire is installed at the normal
position.
4. Inspect the front wheel bearings for proper
adjustment. Refer to
Front Hub and Disc Overhaul in
Suspension
section.
5. Inspect the ball joints and tie rod ends. If excessive
looseness is noted, correct before adjusting. Refer to
Steering Linkage in this section.6. Inspect the wheel and tires for run-out. Refer to
Wheel Replacement in Wheel and Tire System
section.
7. Inspect the trim height. If not within specifications, the
correction must be made before adjusting caster.
8. Inspect the steering unit for looseness at the frame.
9. Inspect shock absorbers for leaks or any noticeable
noise. Refer to
Shock Absorber in Suspension
section.
10. Inspect the control arms or stabilizer bar attachment
for looseness. Refer to
Suspension section.
11. Inspect the front end alignment using alignment
equipment. Follow the manufacturer's instructions.
12. Park the vehicle on a level surface.
Trim Height Adjustment
Adjust the trim height (1) by means of the adjusting bolt on
the height control arms.
CAUTION: When adjusting front end alignment, be
sure to begin with trim height first, as it may change
other adjusted alignments.
450RS003
410RS001

POWER±ASSISTED STEERING SYSTEM2A±15
NOTE: Overall thickness of caster shim and camber
shim should be 10.8 mm (0.425 in) or less.
Tighten the fulcrum pin bolt to the specified torque.
Torque: 152 N´m (112 lb ft)
Position of shimsCamber angleCaster angleFront sideRear sideCamber angleCaster angle
When addedWhen removedDecreasesDecreases
Caster shimWhen removedWhen addedIncreasesIncreasesCaster shimÐWhen removedUnchangedDecreases
ÐWhen addedUnchangedIncreases
Camber shimWhen addedDecreasesUnchangedCamber shimWhen removedIncreasesUnchanged
Toe-in Adjustment
1. To adjust the toe-in angle, loosen the lock nuts (2) on
the tie rod (1) and turn the tie rod. Turn both rods the
same amount, to keep the steering wheel centered .
Toe-in: 0 to +2 mm (0 to +0.08 in)
433RW003
2. Tighten the lock nut to the specified torque.
Torque: 98 N´m (72 lb ft)

POWER±ASSISTED STEERING SYSTEM2A±25
Inspection and Repair
Make all necessary adjustments, repairs, and part
replacements if wear, damage, or other problems are
discovered during inspection.
Rotor
442RS002Check that the groove in the vane is free from excessive
wear and that the vane slides smoothly. When part
replacement becomes necessary, the pump cartridge
should be replaced as a subassembly.
Vane
442RS003
Sliding faces of the vane should be free from wear.
(Particularly the curved face at the tip that contact with the
cam should be free from wear and distortion). When part
replacement becomes necessary, the pump cartridge
should be replaced as a subassembly.
Cam
The inner face of the arm should have a uniform contact
pattern without a sign of step wear. When part
replacement becomes necessary, the pump cartridge
should be replaced as a subassembly.
Side Plate
The sliding faces of parts must be free from step wear
(more than 0.01 mm), which can be felt by the finger nail.
The parts with minor scores may be reused after lapping
the face.
Relief Valve
The sliding face of the valve must be free from burrs and
damage. The parts with minor scores may be reused after
smoothing with emery cloth (#800 or finer).
Shaft
Oil seal sliding faces must be free from a step wear which
can be felt by the finger nail. Bushing fitting face must be
free from damage and wear.
O-ring, Oil Seal, Snap Ring
Be sure to discard used parts, and always use new parts
for installation. Prior to installation, lubricate all seals and
rings with power steering fluid.
Pressure Switch
Check the switch operation as follows:
With engine idling and A/C on, turn the steering wheel
fully to the left; compressor should interrupt and engine
idle speed will increase. Shut off A/C and again turn
steering fully to the left; engine idle will increase. If system
fails to function properly, disconnect connector at the
pressure switch and repeat system check while testing
continuity across disconnected SW connector.
Reassembly
1. Install oil seal to front housing. Be sure to discard
used oil seal, and always use new parts for
installation.
CAUTION: When installing the oil seal, be careful
not to damage the oil seal contacting surface of the
housing.
2. Install shaft assembly.

FRONT SUSPENSION3C±3
Condition CorrectionPossible cause
Shimmy, Shake or VibrationTire or wheel out of balance.Balance wheels or replace tire/or
wheel.
Loose wheel bearings.Replace wheel bearing.
Worn steering linkage ball joints.Replace ball joints.
Worn upper or lower end ball joints.Replace ball joints.
Excessive wheel runout.Repair or replace wheel and/or tire.
Blister or bump on tire.Replace tire.
Excessive loaded radial runout of
tire/wheel assembly.Replace tire or wheel.
Improper wheel alignment.Check wheel alignment.
Loose or worn steering linkage.Tighten or replace steering linkage.
Loose steering unit.Tighten steering unit.
Tires not adequately inflated.Adjust tire pressure.
Loose, bent or broken front or rear
suspension parts.Tighten or replace the appropriate
suspension parts.
Faulty shock absorber.Replace shock absorber.
Hub bearing preload misadjustment.Adjust preload.
Parts in power steering valve
defective.Replace power steering unit.
Hard SteeringBind in steering linkage ball studs,
upper or lower ball joint.Replace ball joint.
Improper wheel alignment.Check wheel alignment.
Tire not adequately inflated.Inflate tires to proper pressure.
Bind in steering column or shaft.Repair or replace.
Improper power steering system
operation.Repair or replace. Refer to Steering
section.
Too Much Play In SteeringWheel bearings worn.Replace wheel bearings.
Loose steering unit or linkage.Retighten or repair.
Worn or loose steering shaft
universal joint.Retighten or replace steering shaft.
Worn steering linkage ball joints.Replace ball joints.
Worn upper or lower end ball joints.Replace ball joints.
Poor Steering Wheel ReturnabilityBind in steering linkage ball joints.Replace ball joints.
Bind in upper or lower ball joints.Replace ball joints.
Bind in steering column and shaft.Repair or replace.
Bind in steering gear.Check and repair steering gear.
Improper wheel alignment.Adjust wheel alignment.
Tires not adequately inflated.Adjust pressure.
Loose steering wheel nut.Retighten.
Worn wheel bearing.Replace.