2007 ISUZU KB P190 power steering fluid

POWER-ASSISTED STEERING SYSTEM 3B-9
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. W hile refilling the
reservoir, check the draining fluid for contamination.
If foreign matter is still evident, replace all lines,
disassemble and clean or replace the powe
r
steering system components. Do not re-use any
drained power steering fluid.

Steering Wheel Free Play Inspection
RTW 73BSH000901
1. W ith 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. W hen test driving, check for hard
steering, steering shimmy and tendency to pull to
one side.

Front End Alignment Inspection and
Adjustment
Toe-in Adjustment
Toe-in: Refer to Section 3A FRONT ALIGNMENT
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 .
431R30006
2. Tighten the lock nut to the specified torque. Torque:
98 N ⋅
⋅⋅
⋅
m (10 kgf ⋅
⋅⋅
⋅
m/72 lb ⋅
⋅⋅
⋅
ft)

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ISUZU KB P190 2007

POWER-ASSISTED STEERING SYSTEM 3B-11
Power Steering Unit
Power Steering Unit and Associated Parts


431R300016
Legend
(1) Crossmember
(2) Power Steering Unit Assembly
(3) Bracket
(4) Universal joint (Steering shaft)


Removal
1. Remove the universal joint assembly. Make a setting mark across the coupling flange and
steering unit to insure reassembly of the parts in the
original position.
2. Drain power steering fluid.

3. Remove the tie rod end assembly from knuckle.
Use tie rod end remover 5-8840-2005-0.


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ISUZU KB P190 2007

POWER-ASSISTED STEERING SYSTEM 3B-19
Disassembly
1. Clean the oil pump with solvent (plug the discharge
and suction ports to prevent the entry of solvent).
Be careful not to expose the oil seal of shaft
assembly to solvent.
2. Remove the bolt, suction pipe and O-ring.
3. Remove the connector, O-ring, relief valve and spring.
4. Remove the bolt, rear housing and O-ring.
5. Remove the snap ring.
6. Remove the shaft assembly.
7. Remove the oil seal.
CAUTION: When removing the oil seal, be careful
not to damage the housing.
8. Remove the pump cartridge assembly from the front housing.
9. Remove two O-rings.

Inspection and Repair
Make all necessary adjustments, repairs, and part
replacements if wear, damage, or other problems are
discovered during inspection.

Rotor
442RS002
Check that the groove in the vane is free from excessive
wear and that the vane slides smoothly. W hen 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). W hen
part replacement becomes necessary, the pump
cartridge should be replaced as a subassembly.

Cam
The inner face of the cam should have a uniform
contact pattern without a sign of step wear. W hen 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 (0.0004 in)), which can be felt b
y
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.


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ISUZU KB P190 2007

3B-20 POWER-ASSISTED STEERING SYSTEM
Reassembly
1. Install oil seal to front housing. Be sure to discard
used oil seal, and always use new parts fo
r
installation.
CAUTION: When installing the oil seal, be careful
not to damage the oil seal contacting surface of the
housing.
2. Install shaft assembly.
3. Install the vanes to roter with curved face in contact with the inner wall of cam.
442RS005
4. Install roter and vanes to cam.
5. Install pin to front housing.
6. Install two new O-rings to front housing. Be sure to discard used O-ring.
7. Install side plate.
CAUTION: When installing side plate, be careful not
to damage its inner surface. Damaged side plate
may cause poor pump performance, pump seizure
or oil leakage.
8. Install pump cartridge assembly to front housing.
9. Install snap ring to shaft end.
10. Install rear housing with a new O-ring. Be sure to discard used O-ring. Then install bolt and tighten it
to specified torque.
Torque: 25 N ･
･･
･
m (2.5 kgf ･
･･
･
m/18 lb ･
･･
･
ft)
11. Install suction pipe with a new O-ring. Be sure to discard used O-ring. Then install bolt and tighten it
to specified torque.
Torque: 10 N ･
･･
･
m (1.0 kgf ･
･･
･
m/87 lb ･
･･
･
in)
12. Install relief valve and spring.
13. Install connector with a new O-ring. Be sure to discard used O-ring. Tighten the connector to
specified torque.
Torque: 59 N ･
･･
･
m (6.0 kgf ･
･･
･
m/43 lb ･
･･
･
ft)

Main Data and Specifications
General Specifications
Oil pump Type Vane
Operating fluid
ATF DEXRON®―III


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ISUZU KB P190 2007

3B-22 POWER-ASSISTED STEERING SYSTEM
Power Steering Pump (4JJ1-TC, 4JK1-TC)
Power Steering Pump and Associated Parts

RTW 53BMF000201
Legend
(1) Pump Assembly
(2) Flexible Hose
(3) Bolt
(4) Suction Hose
(5) Nut


Removal
1. Remove the cooler compressor drive belt.
2. Place a drain pan below the pump.
3. Disconnect the suction hose.
4. Disconnect the flexible hose.
5. Remove the power steering fixing nut, and remove the pump assembly.

Installation
1. Install the pump assembly. Tighten the fixing nut to
the specified torque.
Torque: 25 N·m (2.5 kgf·m/18 lb·ft)
2. Install the flexible hose.
Tighten the bolts to the specified torque.
Torque: 8 N·m (0.8 kgf·m/69 lb·in)
3. Install the cooler compressor drive belt.
4. Connect the suction hose, then fill the power steering fluid and bleed the power steering system.
Refer to Bleeding the Power Steering System in this section.

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ISUZU KB P190 2007

3B-24 POWER-ASSISTED STEERING SYSTEM
Disassembly
1. Clean the oil pump with solvent (plug the discharge
and suction ports to prevent the entry of solvent).
Be careful not to expose the oil seal of the shaft assembly to solvent.
2. Remove the bolt, suction pipe and O-ring.
3. Remove the nut and bracket.
4. Remove the nut, washer and joint.
5. Remove the connector, O-ring, relief valve and spring.
6. Remove the bolt, rear housing and O-ring.
7. Remove the pump cartridge assembly and the side plate from the shaft. Remove two O-rings.

Inspection and Repair
Make all necessary adjustments, repairs, and part
replacements if wear, damage, or other problems are
discovered during inspection.

Rotor
442RS002
Check that the groove in the vane is free from excessive
wear and that the vane slides smoothly. W hen 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. (In
particular the curved face at the tip that makes contact
with the cam should be free from wear and distortion).
W hen part replacement becomes necessary, the pump
cartridge should be replaced as a subassembly.

Cam
The inner face of the cam should have a uniform
contact pattern without a sign of step wear. W hen 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 (0.0004 in)), which can be felt by a
finger nail.
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. Parts with minor scores may be reused
after smoothing with emery cloth (#800 or finer).

Shaft and Housing Assembly
The bushing fitting face on the shaft must be free from
damage and wear.

O-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.



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ISUZU KB P190 2007

POWER-ASSISTED STEERING SYSTEM 3B-25
Reassembly
1. Install two new O-rings on shaft and housing
assembly. Be sure to discard used O-ring.
2. Install side plate.
CAUTION: When installing side plate, be careful not
to damage its inner surface. A damaged side plate
may cause poor pump performance, pump seizure
or oil leakage.
3. Install the vanes on rotor with curved face in contact with the inner wall of cam.
442RS005
4. Install rotor and vanes on cam.
5. Install pump cartridge assembly on shaft and housing assembly.
6. Install a new O-ring on rear housing. Be sure to discard used O-ring. Then install bolt and tighten it to
specified torque.
Torque: 25 N ⋅
⋅⋅
⋅
m (2.5 kgf ⋅
⋅⋅
⋅
m/18 lb ⋅
⋅⋅
⋅
ft)
7. Install a new O-ring on suction pipe. Be sure to
discard used O-ring. Then install bolt and tighten it to
specified torque.
Torque: 10 N ⋅
⋅⋅
⋅
m (1.0 kgf ⋅
⋅⋅
⋅
m/87 lb ⋅
⋅⋅
⋅
in)
8. Install relief valve and spring.
9. Install a new O-ring on connector. Be sure to discard used O-ring. Tighten the connector to specified
torque.
Torque: 59 N ⋅
⋅⋅
⋅
m (6.0 kgf ⋅
⋅⋅
⋅
m/43 lb ⋅
⋅⋅
⋅
ft)
10. Install new O-rings on joint. Be sure to discard used
O-rings. Temporarily tighten the nut with washer.
11. Install bracket. Then install nut and tighten it to specified torque.
Torque: 12 N ⋅
⋅⋅
⋅
m (1.2 kgf ⋅
⋅⋅
⋅
m/104 lb ⋅
⋅⋅
⋅
in)
12. Tighten the nut to the specified torque (This nut was
temporarily tightened in step 10).
Torque: 20 N ⋅
⋅⋅
⋅
m (2.0 kgf ⋅
⋅⋅
⋅
m/14 lb ⋅
⋅⋅
⋅
ft)


Main Data and Specifications
General Specifications
Oil pump Type Vane
Operating fluid
ATF DEXRON®―III


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ISUZU KB P190 2007

6E–268 ENGINE DRIVEABILITY AND EMISSIONS
KNOCK SENSOR
Location
Right-hand side of the cylinder block.
Removal Procedure 1. Disconnect the negative battery cable.
2. Disconnect the knock sensor connector.
3. Loosen a bolt and remove knock sensor from the cylinder block.
Installation Procedure 1. Tighten the knock sensor by a bolt with specified tightening torque.
Tightening Torque
• Bolt: 20N·m (2.0kgf·m) 2. Connect a knock sensor connector to the knock sensor.
3. Connect the negative battery cable.
NOTE: Verify any DTCs (diagnosis Trouble Code) are
not stored after replacement.
POWER STEERING PRESSURE (PSP)
SWITCH
Location
Installed on the power steering pump assembly.
Removal Procedure 1. Disconnect the negative battery cable.
2. Disconnect the power steering pressure switch connector.
3. Loosen and remove the power steering pressure switch from the power steering pump.
Installation Procedure 1. Install the power steering pressure switch to the power steering pump.
2. Tighten the power steering pressure switch.
3. Connect a connector to the power steering pressure switch.
4. Connect the negative battery cable.
NOTE: Verify any DTCs (diagnosis Trouble Code) are
not stored after replacement.
Verify no power steering fluid leaking from the sensor
threads after replacement.

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ISUZU KB P190 2007