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Home >> Jeep Truck >> 2004 >> Grand Cherokee 4WD L6-4.0L VIN S >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Tune-up and Engine Performance Checks >> Fuel Pressure >> Testing and Inspection >> Fuel Pressure Leak Down Test

Fuel Pressure Leak Down Test

Test 1 - 2:






SYMPTOM
FUEL PRESSURE LEAK DOWN

POSSIBLE CAUSES
- Faulty fuel pump module
- Fuel injector(s)

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