2004 ISUZU TF SERIES Workshop Manual

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Page 1305 of 4264

ISUZU TF SERIES 2004 Workshop Manual FUEL SYSTEM 6C – 5

FUEL FILTER AND WATER SEPARATOR
As the inside of the injection pump is lubricated by the fuel which it is pumping, the fuel must be perfectly clean. The
fuel filter and

Page 1306 of 4264

ISUZU TF SERIES 2004 Workshop Manual 6C – 6 FUEL SYSTEM

For EURO III model

RTW46AM F000201

Page 1307 of 4264

ISUZU TF SERIES 2004 Workshop Manual FUEL SYSTEM 6C – 7
INJECTION PUMP

RTW46CLF000201

4JA1T(L):
A Bosch Distributor Type Injection Pump is used. A single reciprocating/revolving plunger delivers the fuel uniformly
to th

Page 1308 of 4264

ISUZU TF SERIES 2004 Workshop Manual 6C – 8 FUEL SYSTEM
INJECTION NOZZLE (4JA1L)

RTW46CM F000301
NOTE:

Injection nozzle adjustment is possible only on the 4JA1L engine.

A hole (with 5 orifices) type injection nozzle.

Page 1309 of 4264

ISUZU TF SERIES 2004 Workshop Manual FUEL SYSTEM 6C – 9
FUEL TANK
Fuel Tank and Associated Parts

RTW46CLF000401

Legend

1. Bolt; Fuel Tank
2. Fuel Tank Band

3. Fuel Tube/Quick Connector

4. Fuel Filler Hose

Page 1310 of 4264

ISUZU TF SERIES 2004 Workshop Manual 6C – 10 FUEL SYSTEM
Removal
CAUTION: When repair to the fuel system has been
completed, start engine and check the fuel system for
loose connection or leakage. For the fuel system
diagnosis

6C – 10 FUEL SYSTEM
Removal
CAUTION: When repair to the fuel system has been
completed, start engine and check the fuel system for
loose connection or leakage. For the fuel system
diagnosis, see Section “Driveability and Emission".
1. Disconnect battery ground cable.
2. Loosen slowly the fuel filler cap.
NOTE: Be careful not to spouting out fuel because of change
the pressure in the fuel tank.
NOTE: Cover opening of the filler neck to prevent any dus
t
entering.
3. Jack up the vehicle.
4. Support underneath of the fuel tank with a lifter.
5. Remove the inner liner of the wheel house at rear left side.
6. Remove fixing bolt of the filler neck from the body.
7.
Disconnect the quick connector (3) of the fuel tube from the
fuel pipe.
NOTE: Cover the quick connector to prevent any dust entering
and fuel leakage.
NOTE: Refer to“Fuel Tube/Quick Connector Fittings” in this
section when performing any repairs.
8. Remove fixing bolt (1) of the tank band and remove the
tank band (2).
9.
Disconnect the pump and sender connector on the fuel
pump and remove the harness from weld clip on the fuel
tank.
10.
Lower the fuel tank (5).
NOTE: When lower the fuel tank from the vehicle, don’t scratch
each hose and tube by around other parts.

Installation
1. Raise the fuel tank.
NOTE: When raise the fuel tank to the vehicle, don’t scratch
each hose and tube by around other parts.
2. Connect the pump and sender connector to the fuel pump
and install the harness to weld clip on the tank.
NOTE: The connector must be certainly connected agains
t
stopper.
3. Install the tank band and fasten bolt.
Torque N·m (kg·m / lb ft)
68 (6.9 / 50)
NOTE: The anchor of the tank band must be certainly installed
to guide hole on frame.
4. Connect the quick connector of the fuel tube to the fuel pipe
and the evapo tube from evapo joint connector.
NOTE: Pull off the left checker on the fuel pipe.
NOTE: Refer to “Fuel Tube/Quick Connector Fittings” in this
section when performing any repairs.

Page 1311 of 4264

ISUZU TF SERIES 2004 Workshop Manual FUEL SYSTEM 6C – 11
5. Install the filler neck to the body with bolt.
6. Install the inner liner of the wheel house at rear left side.
7. Remove lifter from the fuel tank.
8.
Lower the ve

Page 1312 of 4264

ISUZU TF SERIES 2004 Workshop Manual 6C – 12 FUEL SYSTEM
FUEL GAUGE UNIT
Fuel Gauge Unit and Associated Parts

RTW46CLF000501

Legend

1. Fuel Feed Port
2. Fuel Return Port

3. Fuel Emission Port

4. Fuel Gauge Uni

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