Jaguar XJ (X350). Manual — part 1129

-> Yes

GO to Pinpoint Test G552807t39.

-> No

Turn the low pressure fuel bleed tap to the CLOSED position and test for normal operation.

G552807t39 : CHECK THE PUMP ACTIVITY

1. Remove the rear seat cushion.

Rear Seat Cushion (76.70.37) 2. Key on, engine off. 3. Listen for pump noise.

Can the fuel pump be heard running?

-> Yes

GO to Pinpoint Test G552807t23.

-> No

GO to Pinpoint Test G552807p2.

G552807t23 : CHECK THE FUEL PUMP MODULE FUNCTION

1.

WARNING: This procedure involves fuel handling. Be prepared for fuel spillage at all times

and always observe fuel handling precautions. Failure to follow these instructions may result in

personal injury.

After thoroughly cleaning around the connections, disconnect the inlet pipe from the fuel filter. 2.

Position a suitable container beneath the fuel filter inlet pipe to collect fuel. 3. Key on, engine off (the

pump should run for a short period, depending on temperature, etc). 4. Check that fuel is pumped

from the fuel filter inlet pipe.

Is fuel pumped from the fuel filter inlet pipe?

-> Yes

CHECK the drive belt to the fuel injection pump.

Fuel Injection Pump Belt Check for DTCs. Test the system for normal operation.

-> No

CHECK the fuel lines for a blockage/restriction, GO to Pinpoint Test G552807p9.

PINPOINT TEST G552807p9 : CHECK
THE FUEL LINES

G552807t24 : CHECK FOR FUEL SYSTEM LEAKS

1. Start and run the engine for five minutes. 2. Key off. 3. Inspect the fuel lines, pump, etc, in the

engine bay for cracks/damage. 4. Raise and support the vehicle.

Lifting 5. Inspect the fuel lines for cracks/damage. 6. Check the integrity of the joints in the supply

and return lines between the fuel tank and the fuel pump. 7. Carefully check around the fuel pipes,

injectors and pump for evidence of leakage. 8. If there is evidence of a significant leak, clean the

engine and repeat the test.

Is there any evidence of leakage?

-> Yes

RECTIFY the leak as necessary. Test the system for normal operation.

-> No

GO to Pinpoint Test G552807t43.

G552807t43 : CHECK THE FUEL LINES FOR RESTRICTIONS

1.

WARNING: This procedure involves fuel handling. Be prepared for fuel spillage at all times

and always observe fuel handling precautions. Failure to follow these instructions may result in

personal injury.

Detach the fuel line from the fuel rail and from the fuel pump module. 2. Using an air line gently blow

through the line checking for blockages or restrictions.

Is a blockage or restriction evident?

-> Yes

CLEAR/REPAIR the blocked or restricted fuel line and test the system for normal operation.

-> No

GO to Pinpoint Test G552807t44.

G552807t44 : CHECK THE IN TANK FUEL LINES

1. Remove the fuel and transfer pump module locking rings.

Fuel Pump Module - 2.7L V6 - TdV6 (19.45.08) 2. Detach the fuel lines from the transfer and fuel

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pump modules. 3. Using an air line gently blow through the line checking for blockages, restrictions

or leaks.

Is a blockage, restriction or leak evident?

-> Yes

CLEAR/REPAIR the blocked, restricted or leaking fuel line as necessary and test the system for normal

operation.

-> No

CHECK for DTCs and symptoms indicating another cause of the problem.

PINPOINT TEST G552807p5 : CHECK
THE IN TANK FUEL LEVEL

G552807t29 : CHECK THE FUEL LEVEL IN EACH SIDE OF THE FUEL TANK

1. Remove the fuel transfer pump and fuel pump module locking rings.

Fuel Pump Module - 2.7L V6 - TdV6 (19.45.08) 2. Reposition the fuel pump modules such that you

can see the fuel levels in the tank.

Is there fuel in both sides of the tank?

-> Yes

The fuel transfer pump is functioning.

-> No

If fuel is evident in the fuel transfer pump side and the fuel pump module side is empty then suspect

the following: - Low pressure fuel bleed tap is open. GO to Pinpoint Test G552807p8.

- Fuel transfer pump failure.

Fuel Transfer Pump - 4.2L NA V8 - AJV8/4.2L SC V8 - AJV8/3.0L NA V6 - AJ27/3.5L NA V8 - AJV8, VIN

Range: G00442->G45703 (19.45.21)

Removal and installation

Fuel Filter - 4.2L NA V8 - AJV8/4.2L SC V8
- AJV8/3.0L NA V6 - AJ27/3.5L NA V8 -
AJV8 (19.25.02)

Removal

1

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WARNING: Place the vehicle in a quarantined area and arrange "No Smoking/Petrol

Fumes" signs about the vehicle.

WARNING: Before any work is carried out on the fuel system, ground the vehicle to

earth and maintain the ground connection until the work is complete.

WARNING: Do not smoke or carry lighted tobacco or open flame of any type when

working on or near any fuel related components. Highly flammable vapors are always

present and may ignite. Failure to follow these instructions may result in personal injury.

WARNING: Do not carry or operate cellular phones when working on or near any

fuel related components. Highly flammable vapors are always present and may ignite.

Failure to follow these instructions may result in personal injury.

WARNING: The fuel system remains pressurized for a long time after the ignition is

switched off. The fuel pressure must be relieved before attempting any repairs. Failure to

follow these instructions may result in personal injury.

WARNING: After carrying out repairs, the fuel system must be checked visually for

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