Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 1223

6C–4

ENGINE FUEL (Y22SE 2.2L)

Fuel Filter

Fuel Filter and Associated Parts

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Removal

CAUTION:  When repair to the fuel system has been
completed, start engine   and check the fuel system
for loose connections or leakage. For the fuel
system diagnosis, see   Section “Driveability and
Emission”.

1. Disconnect battery ground cable.

Legend

(1) Fuel Hose
(2) Fuel Filter

(3) Fuel Filter Holder
(4) Fuel Hose

ENGINE FUEL (Y22SE 2.2L)

6C–5

2. Remove fuel filler cap.

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3. Disconnect fuel hoses(1) from fuel filter on both

engine side and fuel tank side.

4. Fuel filter fixing bolt.

• Remove the fuel filter fixing bolt on fuel filter

holder(3).

5. Remove fuel filter(2).

Inspection

1. Replace the fuel filter if the fuel leaks from fuel filter

body or if the fuel filter body itself is damaged.

2. Replace the filter if it is clogged with dirt or

sediment.

3. Check the drain and if it is clogged with dust, clean it

out with air.

Installation

1. Install the fuel filter in the proper direction.

2. Install fuel filter holder fixing bolt.

3. Connect fuel hoses on engine side and fuel tank

side.

4. Install fuel filler cap

5. Connect the battery ground cable.

Inspection

1. After installation, start engine and check for fuel leak

age.

2. Check clogged drain port of the receive rubber by

the foreign material, repair or clear if clogged it.

In–Tank Fuel Filter

The fuel filter is located on the lower end of the fuel
pickup tube in the fuel tank. The fuel filter prevents dirt
and water from entering the fuel system not unless the
fuel filter is completely submerged in water. The fuel
filter is maintenance free, requiring no maintenance.
Excess water and sediment restricts fuel supply to the
engine resulting in engine stall. If this happens, the fuel
tank would need to be cleaned thoroughly.

Fuel Pump Flow Test

If reduction of fuel supply is suspected, perform the
following checks.

1. Make sure that there is fuel in the tank.

2. With the engine running, check the fuel feed pipe

and hose from the fuel tank to injector for signs of
leakage. Retighten pipe and hose connection if
found loose. Also inspect for bent or kinked pipes
and hoses.

3. Insert the hose from the fuel feed pipe into a clean

container and check for fuel pump flow rate.

4. Connect the pump relay terminals with a jumper

wire(1) as shown and start the fuel pump to
measure delivery.

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CAUTION:  Avoid creating sparks when connecting
jumper wires.

If the measured value is out of specifications,
conduct the pressure test.

Pressure test

For the pressure test to the fuel system, see Section 6E
“Fuel Control System”.

Legend

(1) Fuel Filler Cap
(2) Receive Rubber Drain

Delivery Time

Delivery

15 seconds

0.38 liters minimum

6C–6

ENGINE FUEL (Y22SE 2.2L)

Fuel Pump

Fuel Pump and Associated Parts

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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. Remove fuel tank assembly(8). Refer to “Fuel Tank

Removal” in this section.

2. Remove Fuel Tube/Quick Connector (2).

NOTE:  Refer to “Fuel Tube/Quick Connector Fittings” in
this section when performing fuel tube repairs.

3. Remove the retainer (7) with tool J–39765 and

remove the fuel pump and sender (FPS) assembly
(4).

NOTE:

• After removing pump assembly (4), cover fuel tank to

prevent any dust entering.

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Legend

(1) Fuel Feed Port
(2) Fuel Tube/Quick Connector
(3) Fuel Return Port
(4) Fuel Pump and Sender (FPS) Assembly

(5) Connector; Fuel Feed Pump
(6) Connector; Fuel Tank Pressure Sensor
(7) Retainer (Fuel pump lock)
(8) Fuel Tank Assembly
(9) Seal; Fuel Pump

ENGINE FUEL (Y22SE 2.2L)

6C–7

Installation

1. Install FPS assembly(4) with the retainer (7) and

new seal; fuel pump (9) by J–39765.

2. Install Fuel Tube/Quick Connector (2).

NOTE:  Refer to “Fuel Tube/Quick Connector Fittings” in
this section when performing fuel tube repairs.

3. Install fuel tank assembly(8). Refer to “Fuel Tank

Installation”.

Fuel Tube / Quick – Connector Fittings

Precautions

• Lighting match, cigarette and/or lighter is prohibitted.

• Keep flammable materials safely stored to prevent

accidental fires.

• Disconnect the battery ground cable to prevent

electrical shorts.

• Pretreat piping system to prevent thermal damage or

spattering when welding or conducting other   heat
generating repairs.

Cautions During Work

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Prevent battery electrolyte or wiping cloth soaked with
battery electrolyte on the fuel piping. Do not   use fuel
piping that has been exposed to battery electrolyte. Be
careful not to bend or twist the fuel   pipe while
performing repairs. Replace fuel piping if the existing
fuel piping is damaged in any way.

Removal

1. Open the fuel cap to relieve the fuel pressure in the

tank.
Use compressed air to blow off any dirt when
disconnecting the fuel quick connect fittings.

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Cover the connectors with a cloth when
disconnecting the piping to prevent fuel spray, in
case of any existing fuel pressure in the system.

2. For removal of the quick connector, hold the quick

connector in one hand, and pull out the connentor
with the other hand while pressing the square
relieve button of the connector, as illustrated.

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Legend

(1) O-ring
(2) Port
(3) Connector
(4) Plastic Tube