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Runability problem 700

posted by  Baker780 on  Tue Feb 21 11:05 CST 2006
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last visit: Thu Aug 4 17:17 CST 2011
[RELATED]

On my 780 since its cold start problem its been fine. Something interesting though about its idle at stop lights, it has been dropping down to about 500-600 rpm which is unusual it hasn't happened before and the idle normally bounces between 750-900 in gear. All these problems go away when you turn the head lights off. My wife always has the headlights on, they automatically shut off when you turn the key off so the switch is always on 24/7 for as long as she owned the car. I just so happened to turn them off today and the car is running alot better. Just to prove i wasn't crazy i was sitting at a stop light, the car was smooth and things were good and i turned the headlights on and the idles surged and bounced like it always did which i learned to live with. Is there any conection between the headlights and the engine runability???
--
-Baker-






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