Isuzu Trooper (2000 year). Service manual — part 352

6E–537

TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS

3. Remove the bolt and the clamp securing the VSS in

place.

IMPORTANT:

Have a container ready to catch any fluid

that leaks out when the VSS is removed from the transfer
case for 4WD and on the extension cover for 2WD.

TS23780

4. Remove the VSS from the transfer case by wiggling it

slightly and pulling it straight out.

Inspection Procedure

1. Inspect the electrical connector for signs of corrosion

or warping. Replace the VSS if the electrical
connector is corroded or warped.

2. Inspect the VSS driven gear for chips, breaks, or worn

condition. Replace the VSS if the driven gear is
chipped, broken or worn.

3. Inspect the O-ring for wear, nicks, tears, or

looseness. Replace the O-ring if necessary.

Installation Procedure

1. Install the VSS in the transfer case with the notch for

the connector facing the rear.

2. Secure the VSS in place with the clamp and the bolt.

Tighten

D

Tighten the bolt to 16 N·m (12 lb ft.).

TS23780

3. Connect the VSS electrical connector.

TS23748

4. Check the transfer case oil level. Add fluid if

necessary.

5. Connect the negative battery cable.

6E–538

TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS

Air Cleaner/Air Filter

Removal Procedure

1. Loosen the clamp between the air cleaner lid and the

mass air flow sensor.

025RY00001

2. Release the four latches securing the lid to the air

cleaner housing.

3. Remove the air cleaner lid.
4. Remove the air filter element.
5. Remove the retaining bolts and the air cleaner

housing from the vehicle.

025RY00002

Legend

(1) Air Cleaner Housing
(2) Air Filter Element
(3) Air Cleaner Lid

Installation Procedure

1. Install the air cleaner housing in the vehicle with the

retaining bolts.

2. Install the air filter element in the air cleaner housing.
3. Install the air cleaner lid on the MAF sensor and the air

cleaner housing.

025RY00003

Legend

(1) Air Cleaner Housing
(2) Air Filter Element
(3) Air Cleaner Lid
(4) Mass Air Flow Sensor

4. Tighten the clamp and secure the four latches

between the lid and the air cleaner housing.

Common Chamber

Removal and Installation Procedure

Refer to Common Chamber in Engine Mechanical
section.

6E–539

TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS

Accelerator Pedal Replacement

Removal Procedure

1. Disconnect the negative battery cable.
2. Disconnect the electrical harness from the

accelerator position sensor.

101RY00006

Legend

(1) Accelerator Position Sensor
(2) Accelerator Pedal Assembly

3. Remove the two screws from the accelerator pedal

assembly.

101RY00007

4. Remove the accelerator pedal assembly from the

bulkhead.

Installation Procedure

1. Install the accelerator pedal assembly on the

bulkhead.

2. Install the two screws to the accelerator pedal

assembly.

Tighten

D

Tighten the screws to 22 N·m (16 lb ft.).

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3. Connect the electrical harness to the accelerator

position sensor.

101RY00006

Legend

(1) Accelerator Position Sensor
(2) Accelerator Pedal Assembly

4. Install the negative battery cable.

6E–540

TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS

Fuel Filler Cap

General Description

The fuel filler cap includes a vacuum valve and a pressure
valve.
If high vacuum or high pressure occurs in the fuel tank,
each valve works to adjust the pressure in order to
prevent damage of the tank.

TS23767

Inspection Procedure

NOTE: Replace the fuel filler cap with the same type of
filler cap that was originally installed on the vehicle.

D

Check the seal ring in the filler cap for any abnormality
and for seal condition.

D

Replace the filler cap if any abnormality is found.

Fuel Filter

Removal Procedure

1. Disconnect the negative battery cable.
2. Remove the fuel filler cap.

041RW005

3. Disconnect the fuel line from the fuel filter on the

engine side.

4. Disconnect the fuel line from the fuel filter on the fuel

tank side.

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