DeVille V8-4.6L VIN Y (1998)
Fuel Rail: Service and Repair
Removal Procedure
Tools Required
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J 34730-1A Fuel Pressure Gauge
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J 37088 Fuel Line Quick-Connect Separator
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J41081 Injector Remover
REMOVAL PROCEDURE
NOTICE:
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Remove the fuel rail assembly carefully in order to prevent damage to the injector electrical connector terminals and the injector spray tips.
Support the fuel rail after the fuel rail is removed in order to avoid damaging the fuel rail components.
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Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering open pipes and
passages.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Release / Service and Repair / Fuel Pressure Relief Procedure.
2. Remove the intake air duct clamp (2) from the air cleaner assembly (3).
3. Remove the intake air duct clamp (5) from the MAF sensor (4).
4. Remove the MAF sensor electrical connector from the MAF sensor (4).
Description
5. Remove the EGR pipe and crankcase ventilation pipe at throttle body spacer.
