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Home >> Jeep >> 2012 >> Liberty Limited, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System >> Fuel Delivery, Gas >> Standard Procedure >> Fuel System Pressure Release

Fuel System Pressure Release

  1. Remove fuel fill cap.
  2. Remove fuel pump fuse from Totally Integrated Power Module (TIPM). For location of fuse, refer to label on underside of TIPM cover.
  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 STANDARD PROCEDURE - QUICK-CONNECT FITTINGS  .
  8. When the repair is complete, return fuel pump fuse to TIPM.
  9. One or more Diagnostic Trouble Codes (DTC's) may have been stored in PCM memory due to fuel pump fuse removal. A diagnostic scan tool must be used to erase a DTC.
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