P1391 Jeep -

Question

2004 jeep cherokee straight six engine, the crank sensor has been changed

it iwill idle for a long time with no problem, you take off with it and after a few minutes the engine faulters

Answer 1

P1391 Intermittent loss of CMP or CKP (Camposition sensor or Crank position sensor)

At one time there was a Recall which dealt with the Crank position sensor harness that had a tendency to crank and and expose the wire to moisture and causing stalling. , With this symptom what the engine is experiencing it may lead to the solution for you.Safety Recall # 113