2004 ISUZU TF SERIES oil

3B-60 POWER-ASSISTED STEERING SYSTEM

9. Turn the SRS coil counter clockwise to full, return
about 3 turns and align the neutral mark. (with SRS
air bag)
CAUTION: When turning the SRS coil counte
r
clockwise to full, stop turning if resistance is felt.
Forced further turning may damage to the cable in
the SRS coil.
826RW014
10. When installing the steering column cover, be sure to
route each wire harness as illustrated so that the
harnesses do not catch any moving parts.
825RW017
Legend
(1) Steering Column Cover
(2) Starter Switch Harness
(3) Combination Switch Harness
(4) Inflator Module Harness

11. Install steering wheel and align the setting marks
made when removing.
Refer to the adjustment method in case a mark is
not attached in this section.
NOTE: Confirm SRS and Horn harness connector is
fixed by the steering wheel.
RTW33BSH000601

CAUTION: Never apply force to the steering wheel in
direction of the shaft by using a hammer or othe
r
impact tools in an attempt to remove the steering
wheel. The steering shaft is designed as an energy
absorbing unit.
12. Tighten the steering wheel fixing nut to the specified
torque.
Torque: 31 - 39 N




m (3.2 – 4.0 kg




m/23 - 29 lb ft)
13. Support the module and carefully connect the
module connector and horn lead, then install inflato
r
module.
NOTE: Pass the lead wire through the tabs on the
plastic cover (wire protector) of inflator to prevent lead
wire from being pinched.
14. Tighten bolts to specified torque.
Torque: 2 - 4 N




m (0.2 – 0.4 kg




m/17 - 35 lb in)
15. Install driver knee bolster (reinforcement).
16. Install instrument panel lower cover.
17. Install the engine hood opening lever.
18. Connect the yellow 2-way SRS connector and horn
lead located under the steering column.
19. Connect the battery "-" terminal cable. (with SRS ai
r
bag)

3C-2 FRONT SUSPENSION
MAIN DATA AND SPECIFICATIONS
4




2 (EXCEPT HIGH RIDE SUSPENSION) MODEL
Front suspension Type Independent wishbone arms, coil spring
with stabilizer bar.
Coil spring Spring Rate 4JH1-TC / 4JA1-TC / 4JA1-L (ENGINE); 9.62 kg/mm
(94.3 N/mm)
C24SE (ENGINE); 7.94 kg/mm (77.9 N/mm)
Type Gas-sealed. Hydraulic, double acting
Stroke 116.5 mm (4.59 in)
Compressed length 284.0 mm (11.18 in)
Front shock absorber
Extended length 400.5 mm (15.77 in)
Stabilizer bar Diameter 25.0 mm (0.98 in)

4




2 (HIGH RIDE SUSPENSION) MODEL
Front suspension Type Independent wishbone arms, torsion bar spring
with stabilizer bar.
Length 1142 mm (44.96 in) Torsion bar spring
Diameter 29.0 mm (1.14 in)
Type Gas-sealed. Hydraulic, double acting
Stroke 121.0 mm (4.76 in)
Compressed length 257.0 mm (10.12 in)
Front shock absorber
Extended length 378.0 mm (14.88 in)
Stabilizer bar Diameter 26.0 mm (1.02 in)

4




4 MODEL
Front suspension Type Independent wishbone arms, torsion bar spring
with stabilizer bar.
Length 1142 mm (44.96 in) Torsion bar spring
Diameter 29.0 mm (1.14 in)
Type Gas-sealed. Hydraulic, double acting
Stroke 121.0 mm (4.76 in)
Compressed length 257.0 mm (10.12 in)
Front shock absorber
Extended length 378.0 mm (14.88 in)
Stabilizer bar Diameter 26.0 mm (1.02 in)

FRONT SUSPENSION 3C-7
4





2 (High Ride Suspension) and 4





4 Model
RTW340LF000801

The links attach to the vehicle with bolts and bushings at their inner pivot points and to the steering knuckle, which
is part of the front wheel spindle, at their outer points.
The knuckle is mounted to the upper and lower links each of which has a ball joint to permit pivoting of the knuckle
for steering operations. The hub is supported in position on the knuckle spindle by means of the two bearings and
the rotor is mounted to the hub.
The front suspension is an independent type utilizing torsion bar springs (4
4, 4
2 (High ride suspension)) and coil
springs (4
2 (Except High ride suspension)). The torsion bar spring has splines on each end. Height control is
provided on the third crossmember. Both the upper and lower links are pressed steel and the torsion bar is
supported at the ends by lower link in front and by height control arm in rear.

3C-8 FRONT SUSPENSION


FRONT SUSPENSION
(4




2 Except High Ride Suspension)
CONTENTS

Service Precaution............................................. 3C-8
Shock Absorber ................................................. 3C-9
Shock Absorber and Associated Parts ........... 3C-9
Removal ......................................................... 3C-9
Installation....................................................... 3C-10
Shock Absorber with Coil Spring .................... 3C-12
Stabilizer Bar ..................................................... 3C-15
Stabilizer Bar and Associated Parts ............... 3C-15
Removal ......................................................... 3C-15
Inspection and Repair..................................... 3C-15
Installation....................................................... 3C-16
Knuckle .............................................................. 3C-17
Knuckle and Associated Parts........................ 3C-17
Removal ......................................................... 3C-17
Inspection and Repair..................................... 3C-18
Installation....................................................... 3C-18
Upper Control Arm ............................................. 3C-19
Upper Control Arm and Associated Parts ...... 3C-19
Removal ......................................................... 3C-19
Inspection and Repair..................................... 3C-20
Installation....................................................... 3C-20

Lower Control Arm ............................................. 3C-21
Lower Control Arm and Associated Parts ...... 3C-21
Removal ......................................................... 3C-21
Inspection and Repair..................................... 3C-22
Installation ...................................................... 3C-22
Upper Ball Joint ................................................. 3C-23
Upper Ball Joint and Associated Parts ........... 3C-23
Removal ......................................................... 3C-23
Inspection and Repair..................................... 3C-24
Installation ...................................................... 3C-24
Lower Ball Joint ................................................. 3C-25
Lower Ball Joint and Associated Parts ........... 3C-25
Removal ......................................................... 3C-25
Inspection and Repair..................................... 3C-26
Installation ...................................................... 3C-26
Bump Rubber .................................................... 3C-27
Bump Rubber Joint and Associated Parts...... 3C-27
Removal ......................................................... 3C-27
Inspection and Repair..................................... 3C-27
Installation ...................................................... 3C-27
Special Tools .................................................. 3C-28

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, REFE
R
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, o
r
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.

FRONT SUSPENSION 3C-9

Shock Absorber
Shock Absorber and Associated Parts


RTW440LF001201

Legend

(1)
Shock Absorber ASM with coil

(2)
Nut

(3)
Nut

(4)
Nut


(5)
Lower ball joint Nut and cot ter pin

(6)
Nut

(7)
Bolt

(8)
Cam bolt


Removal
1. Raise the vehicle and support it with suitable
safety stands.

2. Remove wheel and tire assembly. Refer to Wheel
Replacement in this section.
3. Remove nut (6).
CAUTION: Be careful not o break the ball joint boot.

FRONT SUSPENSION 3C-11

NOTE: Paint mark to be outer side of after assembly to
vehicle.
2. Install nut (2), then tighten it to the specified
torque.
Torque: 55N





m (5.6kg





m/41lb ft)
3. Install bolt (7) and nut (4), then tighten to the
specified torque.
Buffer clearance: 25.9 mm (1.02 in)
Torque: 137N




m (14.0kg




m/101 lb ft)


NOTE: Apply oil to the thread.
NOTE: Tighten the bolt and nut with the parts in the
position shown in the illustration below.




RTW340SH001301-X
4. Install nut (6), then tighten it to the specified
torque.
Torque: 50N




m (5.1kg




m/37 lb ft)
5. Tighten the cam bolt (8) and nut (3), it to the
interim torque, then turn the cam bolt to the setting
mark applied during disassembly.
6. Install ball joint nut, then tighten it to the specified
torque with just enough additional torque to align
cotter pin holes. Install new cotter pin (5).
Torque: 147N




m (15.0kg




m/108 lb ft)


NOTE: Check the trim height. Refer to Front Alignment
Inspection and Adjustment.

7. Nut (3) tighten it to the specified torque.
Buffer clearance: 25.9 mm (1.02 in)
Torque: 186N




m (19.0kg




m/137 lb ft)


NOTE: Apply oil to the thread.
NOTE: Tighten the bolt and nut with the parts in the
position shown in the illustration below.





RTW340SH001301-X
8. Install wheel and tire assembly. Refer to wheel in
this section.

3C-12 FRONT SUSPENSION
Shock Absorber with Coil Spring

RTW340LF002101

Legend

1. Nut
2. Washer

3. Bushing ; Rubber

4. Mounting Bracket

5. Coil Spring


6. Bushing ; Rubber

7. Washer

8. Shock Absorber ASM

FRONT SUSPENSION 3C-13
Disassembly





1. Install the support fixture (5-8840-0595-0) to the base (5-
8840-003-0).
2. Install the upper adapter (5-8840-0597-0) and the lower
adapter (5-8840-0596-0) to the base and support fixture
assembly.
3. Install the shock absorber assembly to the support fixture.
4. Remove the nut with spring in place.
CAUTION:
Take care not to apply excessive force to the nut during
removal.


CAUTION :
The shock absorbers have been charged with gas at the
factory. Exposure to high temperatures or an open flame
can result in a dangerous explosion.
Keep the shock absorbers away from high temperatures
and open flames.



INSPECTION AND REPAIR
Make all necessary adjustments, repairs, and part replacements if wear, damage, or other problems are discovered
during inspections.




Visual Check
Inspect the following parts for wear, damage or other abnormal
conditions.


Shock absorber


Rubber bushing


Coil spring