GM Authority Newsletter
Since new my check engine lights flashes almost every time I romp on it like to pass a car or pull a trailer up a big hill. The error codes say engine misfire, but nothing is noticeable in the way it runs. Cannot feel any kind of miss or skipping. The dealer cannot figure it out and neither can my local mechanic. Does anyone else have this problem and has anyone figured out a cure?
This has been going on for 14 years and now you are worried about it?
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