Isuzu Rodeo UE. Manual — part 26
1A–74 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
Special Tools
ILLUSTRATION
TOOL NO.
TOOL NAME
J-33939
Drive plate holder
J-33944-A
Drive plate puller
J-33944-4
Forcing screw
J-38424
Pulley puller pilot
J-8433
Pulley puller
J-24092-2
Pulley puller leg
ILLUSTRATION
TOOL NO.
TOOL NAME
J-33940-A
Pulley installer
J-8092
Drive handle
POWER–ASSISTED STEERING SYSTEM
2A–1
RODEO
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 (4
×
2 Model)
2A–19
. . . . . . . . . . . . . . . .
Installation (4
×
4 Model)
2A–19
. . . . . . . . . . . . . . . .
Power Steering Unit Disassembled View
2A–20
. .
Disassembly
2A–20
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair
2A–20
. . . . . . . . . . . . . . . . . .
Reassembly
2A–20
. . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications
2A–21
. . . . . . . . . . .
Special Tools
2A–21
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Steering Pump
2A–22
. . . . . . . . . . . . . . . . . . . .
Power Steering Pump and Associated Parts
2A–22
Removal
2A–22
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
2A–22
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Steering Pump Disassembled View
2A–23
Disassembly
2A–23
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair
2A–24
. . . . . . . . . . . . . . . . . .
Reassembly
2A–24
. . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications
2A–26
. . . . . . . . . . .
Transfer Gear Assembly
2A–27
. . . . . . . . . . . . . . . . .
Transfer Gear Assembly and Associated
Parts
2A–27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal
2A–27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair
2A–27
. . . . . . . . . . . . . . . . . .
Installation
2A–27
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supplemental Restraint System Steering
Wheel & Column
2A–28
. . . . . . . . . . . . . . . . . . . . . . .
Service Precaution
2A–28
. . . . . . . . . . . . . . . . . . . .
SRS Connectors
2A–28
. . . . . . . . . . . . . . . . . . . . . .
Inflator Module
2A–30
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inflator Module and Associated Parts
2A–30
. . . . .
Removal
2A–30
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair
2A–31
. . . . . . . . . . . . . . . . . .
Installation
2A–31
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering Wheel
2A–32
. . . . . . . . . . . . . . . . . . . . . . . . .
Steering Wheel and Associated Parts
2A–32
. . . .
Removal
2A–32
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
2A–34
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combination Switch
2A–35
. . . . . . . . . . . . . . . . . . . . .
Combination Switch and Associated Parts
2A–35
Removal
2A–35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
2A–37
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lock Cylinder
2A–39
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Lock Cylinder and Associated Parts
2A–39
. . . . . .
Removal
2A–39
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
2A–41
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Inspection
2A–42
. . . . . . . . . . . . . . . . . . . . .
Steering Column
2A–43
. . . . . . . . . . . . . . . . . . . . . . . .
Steering Column and Associated Parts
2A–43
. . .
Removal
2A–43
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Insepction
2A–46
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
2A–47
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Inspection
2A–48
. . . . . . . . . . . . . . . . . . . . .
Supplemental Restraint System Steering
Wheel & Column and Associated Parts
2A–49
. . . .
Main Data and Specifications
2A–49
. . . . . . . . . . .
Special Tools
2A–49
. . . . . . . . . . . . . . . . . . . . . . . . . .
2A–2 POWER–ASSISTED STEERING SYSTEM
Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING, REFER TO
THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN POSSIBLE
AIR BAG DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.
Diagnosis
Since the problems in steering, suspension, wheels and
tires involve several systems, they must all be considered
when diagnosing a complaint. To identify the symptom,
always road test the vehicle first. Proceed with the follow-
ing preliminary inspections and correct any defects which
are found.
1. Inspect tires for proper pressure and uneven wear.
2. Raise vehicle on a hoist, then inspect front and rear
suspension and steering linkage for loose or
damaged parts.
3. Spin the front wheels. Inspect for out-of-round tires,
out-of-balance tires, loose and/or rough wheel
bearings.
General Diagnosis
Condition
Possible cause
Correction
Vehicle Pulls
Mismatched or uneven tires.
Replace tire.
Tires not adequately inflated.
Adjust tire pressure.
Broken or sagging springs.
Replace spring.
Radial tire lateral force.
Replace tire.
Improper wheel alignment.
Adjust wheel alignment.
Brake dragging in one wheel.
Repair brake.
Loose, bent or broken front or rear
suspension parts.
Tighten or replace the appropriate
suspension part(s).
Faulty shock absorbers.
Replace shock absorber.
Parts in power steering valve
defective.
Replace power steering unit.
Abnormal or Excessive Tire Wear
Sagging or broken spring.
Replace spring.
Tire out of balance.
Balance or replace tire.
Improper wheel alignment.
Check front end alignment.
Faulty shock absorber.
Replace shock absorber.
Hard driving.
Replace tire.
Overloaded vehicle.
Replace tire and reduce load.
Tires not rotated periodically.
Replace or rotate tire.
Worn or loose road wheel bearings.
Replace wheel bearing.
Wobbly wheel or tires.
Replace wheel or tire.
Tires not adequately inflated.
Adjust the pressure.
POWER–ASSISTED STEERING SYSTEM
2A–3
Condition
Correction
Possible cause
Wheel Hop
Blister or bump on tire.
Replace tire.
Improper shock absorber operation.
Replace shock absorber.
Shimmy, Shake or Vibration
Tire 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 Steering
Bind 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 diag-
nosis”
Too Much Play In Steering
Wheel 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 Returnability
Bind 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.
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