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Old 02-24-2009, 08:45 PM
hieronymous
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Default rough idle in drive but not park

My 97 quest recently had a head gasket replaced. Now, when it is in drive or reverse, and at a full stop, the engine starts to "stumble." By that I mean it becomes rough and feels like it randomly misses. The longer I stay stopped, the more frequently the misses occur, until the car is shaking and feels like it's about to die. If I shift to park or neutral though, it smooths out. It is also smooth while in motion.

The idle is set around 7-800. I tried setting it higher (around 1000) to see if that affected the condition. It did not. The CEL (MIL) is not on.

Any suggestions?
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