Montana :: Engine Misses Sporadically And Sometimes Dies After Stopping
Jul 21, 2012
1999 Montana with V6, engine misses sporadically and sometimes dies after stopping.
The missing first became noticeable as it was shifting into 2nd. We took it to our usual mechanic and the computer indicated the camshaft sensor was questionable so replaced it. Cleared things up for a few days and then it started happening again.
Things progressively got worse so we took it to the dealer. They were able to experience the vehicle behaving this way but they said the computer registered no error codes at all.
We've had the injectors cleaned, replaced the spark plugs and wires, and fuel filter. It starts right up in the morning and runs fine but at temperature begins misbehaving again. Warm days are even worse.
It has continued to get worse, increasing in frequency of miss, duration of miss (sometimes it feels like two or three misses in succession), and even to now it dies when we come to a stop. It starts right up but will often die when we put it in gear again.
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(1) What does this error message mean?
(2) Does it really mean that I need a whole new transmission? If not, what is the recommended procedure to fix the problem...
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