Jaguar XJ (X350). Manual — part 572

11 . Detach the wiring harness.

12 . Remove the left-hand timing cover.

Remove and discard the gasket.

13 . Remove the cowl vent screen.

For additional information, refer to Cowl Vent Screen (76.10.01)

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Remove the exhaust gas recirculation (EGR) valve outlet tubes.

For additional information, refer to Exhaust Gas Recirculation (EGR) Valve Outlet Tube

(17.45.11)

15 . Remove the injector sound proofing.

16 . Remove the engine harness cover.

17 . Remove the engine harness casing.

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CAUTION: Protect the fuel injector electrical connectors with lint-free material to

prevent contamination from the cleaning fluid. Failure to follow this instruction may

result in serious damage to the vehicle.

Using the pneumatic vacuum gun, vacuum foreign material from the fuel injectors, high-

pressure fuel supply lines and surrounding areas.

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For additional information, refer to Fuel Injection Component Cleaning

19 . Disconnect the fuel injector electrical connectors.

20 . Detach the fuel injection wiring harness.

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Using the pneumatic vacuum gun, vacuum foreign material from the fuel injectors, high-

pressure fuel supply lines and surrounding areas.

For additional information, refer to Fuel Injection Component Cleaning

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CAUTION: Make sure that the high-pressure fuel supply line remains in contact

with both the fuel injector and the fuel rail until both unions have been detached and

cleaned. Failure to follow this instruction may result in foreign matter ingress to the fuel

injection system.

CAUTION: Make sure that the fuel injector adaptor union does not move when

loosening the high-pressure fuel supply lines. Failure to follow this instruction may result

in damage to the fuel injector or the fuel injector adaptor union.

Loosen the high-pressure fuel supply lines from the fuel injectors and fuel rail.

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CAUTION: Make sure that the high-pressure fuel supply line remains in contact

with both the fuel injector and the fuel rail until both unions have been detached and

cleaned. Failure to follow this instruction may result in foreign matter ingress to the fuel

injection system.

Using the pneumatic vacuum gun, vacuum foreign material from the high-pressure fuel

supply lines, the fuel injectors and the fuel rail.

For additional information, refer to Fuel Injection Component Cleaning

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NOTE:

While maintaining the pressure on the high-pressure fuel supply line, clean and

vacuum foreign material from the line and unions.

Remove and discard the high-pressure fuel supply lines.

Install suitable blanking caps to the open threaded ports on the fuel

injectors and the fuel rail.

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