rough idle cold

  1. 1990 Ranger engine runs rough and stalls when cold

    The engine idle is rough when cold. Driving with a cold engine stalls at idle sometimes. When hot/warm, it drives fine. I started it cold one morning. It idled roughly for about 15 minutes, and all of a sudden, it smoothed out. It was like a switch turned on. I had installed a new master...

  2. 2001 2.5 cylinder 1 misfire code

    I have changed plugs,wires,coils and fuel injector for cylinder 1. Still sets off check engine light. The truck has a rough idle while cold then smooth's out at operating temp. Any idea's? Thanks Chris

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