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HOMESERVICE MANUALSJEEP2009WRANGLER X, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL DELIVERYFUEL SYSTEMSTANDARD PROCEDUREFUEL SYSTEM PRESSURE RELEASE
2009 Jeep Wrangler X, Automatic

Fuel System Pressure Release

2009 Jeep Wrangler X, AutomaticSECTION Fuel System Pressure Release

Use following procedure if the fuel injector rail is, or is not equipped with a fuel pressure test port. 

  1. Remove fuel fill cap.
  2. Disconnect wiring harness leading to fuel pump module at top of fuel tank. Refer to SYSTEM WIRING DIAGRAMS for connector location.
  3. Start and run engine until it stalls.
  4. Attempt restarting engine until it will no longer run.
  5. Turn ignition key to OFF position.
  6. Place a rag or towel below fuel line quick-connect fitting at fuel rail.
  7. Disconnect quick-connect fitting at fuel rail. Refer to FITTING, Quick Connect .
  8. After performing service procedure, reconnect fuel pump module.
  9. One or more Diagnostic Trouble Codes (DTC's) may have been stored in PCM memory due to the disconnection of fuel pump module. A diagnostic scan tool must be used to erase a DTC.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.