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Originally Posted by KCMark
I have a strange shudder/misfire/hiccup in my 1999 Durango.
No audible noises, just this random shudder. Usually worse in the mornings/cold starts and gets slightly more intense with speed. I got an check engine light a while ago, which indicated a Piston 5 Misfire....I replaced all the spark plugs, and the car ran fine....for about 2 weeks. Now the shudder is back, but no check engine light yet.
Thoughts?
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Could be a lot of things but I would start by checking out the plug wires. If you got a lot of miles on them might as well go for new ones.