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P1391 Diagnostic Trouble Code Discussion for April 2012

CKP Or CMP Sensor Signal Intermittent

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Trouble Ticket Help Requests for DTC P1391
Help Request Posted
1996 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Hesitation, Cuts out, Stall VIN: 1J4FX58S9T
P1391: CKP Or CMP Sensor Signal Intermittent. Vehicle was purchased new. Relatively trouble free. Transmission rebuilt over 1 year ago. Dealer installed heater core last summer.There was never a check engine light. Problems: Engine would shut off while driving and come back on. Eventually shut off and wo...
April 26, 2012