1998 deville with 125k. Engine codes p171,174 and 300. Seems to misfire,especially under hard acceleration. I replaced the fuel filter and the problem seemed to go away. This morning I started it and its doing the same thing. Its very bad in the mornings on the cold start, idles and runs rough until it warms up and then seems to do better. What do I do now ?
cadillac deville codes?
- Thread starter Dennis R
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