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Diagnosis and testing
Fuel Tank and Lines - 4.2L NA V8 - Inspection and Verification 1 . Verify the customer concern.
2 . Visually inspect for obvious signs of mechanical or electrical damage. Mechanical
Electrical
Damaged fuel lines
Fuses (see table)
Damaged push connect fittings
Loose or corroded electrical connectors Fuel leaks
Fuel pump module
Damaged fuel tank filler pipe cap Rear electronic module
Damaged fuel tank filler pipe
Fuel pump relay
3 . Verify the following systems are working correctly: Air intake system Cooling system Charging system Ignition system 4 . If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
5 . If the cause is not visually evident and the Jaguar approved diagnostic system is not available, use a fault code reader to retrieve the fault codes before proceeding to the diagnostic trouble code (DTC) index.
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