Jaguar XJ (X350). Manual — part 1101

CAUTION: Make sure that the tool used to loosen the high-pressure fuel supply

line unions is used at the top of the unions as this is where there is most material. Failure
to follow this instruction may result in damage to the unions.

Loosen the high-pressure fuel supply lines.

9. Using the pneumatic vacuum gun, vacuum foreign material from the fuel injectors, high-
pressure fuel supply lines and surrounding areas.
Fuel Injection Component Cleaning


10. Remove and discard the high-pressure fuel supply line.

11. Install a new high-pressure fuel supply line, but do not fully tighten the unions at this
stage.

12. Position suitable lint free material under the left-hand high-pressure fuel line unions to
catch escaping fuel.

13. Turn the ignition switch to the RUN position for 20 seconds.


14. If fuel does not appear at the fuel line unions after 20 seconds, allow the starter motor to
cool for five minutes.


15. Repeat steps 11 and 12 until fuel appears at the fuel line unions.


16.

CAUTION: Make sure that the tool used to tighten the high-pressure fuel supply

line unions is used at the top of the unions as this is where there is most material. Failure
to follow this instruction may result in damage to the unions.

Tighten the the high-pressure fuel supply line unions.

•

Tighten the high-pressure fuel supply line in the sequence shown:

•

Tighten the high-pressure fuel supply line union 1 to fuel diverter rail to 15 Nm.

•

Tighten the high-pressure fuel supply line union 2 to fuel rail to 15 Nm.

•

Tighten the high-pressure fuel supply line union 1 to fuel diverter rail to 30 Nm.

•

Tighten the high-pressure fuel supply line union 2 to fuel rail to 30 Nm.

17. Attach the high-pressure fuel supply line clamp.

•

Tighten to 10 Nm.

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WARNING: Do not carry out any repairs to the fuel system with the engine

running. The fuel pressure within the high-pressure system can be as high as 1650 bar.
Failure to follow this instruction may result in personal injury.

Start the engine and check visually for fuel leaks.


19. Install the cowl vent screen.
Cowl Vent Screen (76.10.01)


20. Remove the engine oil filler cap.


21. Install the engine cover.

22. Install the oil filler cap.

18.

Low-Pressure Fuel System Bleeding - 2.7L
V6 - TdV6

WARNING: Wait at least 30 seconds after the engine stops before commencing

any repair to the high-pressure fuel injection system. Failure to follow this instruction
may result in personal injury.

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

for leaks. Failure to follow these instructions may result in personal injury.

WARNING: If taken internally do not induce vomiting, seek immediate medical

attention. Failure to follow these instructions may result in personal injury.

WARNING: If fuel contacts the eyes, flush the eyes with cold water or eyewash

solution and seek medical attention.

WARNING: Wash hands thoroughly after handling, as prolonged contact may

cause irritation. Should irritation develop, seek medical attention.

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.

CAUTION: Diesel fuel injection equipment is manufactured to very precise

tolerances and fine clearances. It is therefore essential that absolute cleanliness is
observed when working with these components. Always fit blanking plugs to any
exposed ports.

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