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The other day I started up my Camaro and the RPMs kind of jumped from 1000 to 1100 periodically at idle. At idle, the car also vibrates, a little more than it should. Any ideas? Anyone else in the same boat?
My car= 94 camaro 3.4L V6 Coupe w/82,000miles

 
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Idle Air Control?

 
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what do you mean? what is that?

 
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get some seafoam and follow directions, has the fuel filter been changed? How about tune up?

 
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You guys have winter too, correct? Everything vibrates more in the cold. Could be one explanation.

 
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i guess

 
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I wasnt referring to the idle, although you Idle higher in the winter at startup obviously since its colder... But as far as vibrations go, winter has a lot to do with it.

 
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Cold weather makes everything shrink so the pistons are really tight in the winter. but after it warms up it should be ok

 
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contract, I think, is a better word for it haha.

 
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Yeah winter makes a few extra noises and whines.. I know starting it in the mornings when its been 5'f outside makes the alternator whine a bit.

 
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If its really idling rough id try some new plugs and wires if it has been awhile..

 
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yeah that should help. how long has it been?

 
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my car always rattles a little when i start and its cold out side cold just makes metal contract so some stuff rattles and stops when it warms up

 
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whatever floats your boat

 
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Im just saying.. when I think of the word shrink, I think of getting smaller (ex. t-shirt in dryer), which is not the case here.