vacuum leak

  1. C

    P0300 code showing lean on right bank fix

    First time poster, but I've visited here often. I had an unusual condition with my son's 05 Liberty with the 3.7 last winter where when the ambient temp was 30-40F, It would misfire. Engine operating temp had no effect. It misfired when cold at the beginning of a trip and was misfiring at the...

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