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Fuel Tank and Lines - 4.2L NA V8 - Overview There are changes to the engine management system (EMS) for 2006 my, the most obvious of which will be the change to 7-digit diagnostic trouble codes (DTCs) from the familiar 5-digit, and the change from two fuel pumps for vehicles with supercharger to a single pump.
For additional information on the description and operation of the fuel system. Fuel Tank and Lines - 2.7L V6 - TdV6 Inspection and Verification 1 . Verify the customer concern.
2 . Visually inspect for obvious signs of mechanical or electrical damage. Mechanical
Electrical
Fuel leaks Damaged fuel lines Damaged push connect fittings Fuel level Fuel contamination/grade/quality Damaged fuel tank filler pipe cap Damaged fuel tank filler pipe
Fuses Inertia switch Loose or corroded electrical connectors Harnesses Fuel pump driver module (FPDM) Rear electronic module (REM) Fuel pump relay Engine control module (ECM)
3 . If an obvious cause for an observed or reported symptom is found, correct the cause (if possible) before proceeding to the next step.
4 . If the cause is not visually evident use the Jaguar approved diagnostic system or a scan tool to retrieve the fault codes before proceeding to the diagnostic trouble code (DTC) Index. |