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  #1  
Old 05-20-2004, 08:32 AM
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Idle trouble

I have a 86 Marquis. I've changed all the filters and PCV. Whilst idling at a red light the engines shakes. Does anyone know why? Is the fuel mixture screw set wrong? Also when the engine does this and I start accelating again, I get a nice cloud of exhaust for a sec or two. Help?!?
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Old 05-21-2004, 10:28 PM
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did u try turnin the idle up from the throttle positioning screw?
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Old 05-26-2004, 08:21 AM
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Yep, the engine just shakes faster. Its now booked to go in for some service.
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Old 06-17-2004, 03:19 PM
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Re: Idle trouble

the idle air sensor or a vacuum leak could be your problem; see the thread for "stalls at lights" above.....I had all these problems which went away once replaced the parts....good luck!
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