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Rough idle in drive after warmup 900 1993

posted by  Big Harry on  Thu Nov 2 06:46 CST 2006
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last visit: Sun Sep 21 11:06 CST 2014
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I just started driving the 944 yesterday after it has been parked for 9 months. It starts and runs fine but when it warms up after a few miles the engine idle gets really rough at a stop with the tranny in 'Drive'. If I shift back into 'Neutral' the car smooths out. It seems to have a slight off idle miss that clears up almost immediately when revved in 'Park or 'Neutral', but there doesn't seem to be anything wrong under load.

The IAC and throttle body were cleaned prior to parking and idling has not been an issue. I've checked the facts, but could not find anything specific to this problem. Has anyone else had this experience?

Regards,

--
Will Dallas, www.willdallas.us, www.willdallas.org, www.willdallas.com 86 245 DL 222K miles, 93 940 260K miles, 88 765 GLE 152K miles, 87 Honda Civic 96K.







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