Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 1744

6C–8

ENGINE FUEL (Y22SE 2.2L)

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 pipe, hold the connector in one

hand, and hold the retainer tab with the other hand
and pull out the connector, as illustrated. The pipe
can be removed with the retainer attached.

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Legend

(1) Pipe or Port
(2) Retainer
(3) Connector
(4) O-ring
(5) Plastic Tube

ENGINE FUEL (Y22SE 2.2L)

6C–9

NOTE:  Do not use tools of any kind. Only use bare
hands when disconnecting the connector. Use a
lubricant (light oil) and/or push and pull the connector
until the pipe is disconnected.

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When reusing the pipe retainer, reuse without
removing the retainer from the pipe. If the retainer is
damaged or deformed, replace with a new retainer.
Cover the connectors with a plastic bag after
disassembly to prevent dirt and water from entering.

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Reuse of Quick–Connector

• Replace the pipe, port and connector if scratch, dent

or crack is found.

• Clean the pipe and connector from any debris and

inspect for any damage. Replace the connector and/
or the pipe if a scratch, dent or crack is found.

• Clean the pipe and connector area prior to installing

the retainer, a click is heard when properly installed
then pull to test for snug fit. After it clicks, try pulling it
out to make sure that it is not drawn and is securely
locked.

NOTE:  The retainer, once removed from the pipe,
cannot be reused. Just replace with a new retainer.
Insert the new retainer into the connector side until it
clicks, and connect the pipe as inserting it into the
retainer until it clicks.

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Assembling Advice

Immediateld install the pipe after applying light engine
oil onto pipe for easier assembly. The pipe   must be
clean of dirt when installing pipe or poor sealing may
occur.
Test/Inspection After Assembling

1. Reconnect the battery negative cable.

2. Turn the ignition key to the “ON” position and listen

for pump start-up. Fuel pressure will increase   as
soon as the fuel pump is actuated. Inspect for fuel
leak.

3. Perform step 2 a few times to make sure there are

no fuel leakage.

4. Start the engine and observe the engine idle speed.

The presence of dirt in the fuel system may affect
the fuel injection system.

6C–10

ENGINE FUEL (Y22SE 2.2L)

Fuel Filler Cap

General Description

A vaccum valve and pressure valve are built into the
fuel filler cap which adjusts the fuel pressure in the fuel
tank to prevent fuel tank damage.

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Inspection

The fuel filler cap must be inspected for seal condition.
The fuel filler cap must be replaced if found   defective.

CAUTION:  
A replacement fuel filler cap must be the same as
the original. The fuel filler cap valve was designed
primarily for this application and must be replaced
with the same type or decreased engine
performance may occur.

Legend

(1) Vacuum Valve
(2) Pressure Valve
(3) Seal Ring

ENGINE FUEL (Y22SE 2.2L)

6C–11

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 the retainer (9) with tool J–39765 and

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

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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) Seal; Fuel Pump
(8) Fuel Tank Assembly
(9) Retainer (Fuel pump lock)