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post #1 of 7 (permalink) Old 11-19-2013, 12:11 AM Thread Starter
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Occasional Engine Shaking at Idle

I have a 2006 Chevy Cobalt Lt Auto and occasionally when sitting at a red light or a stop sign there is shaking coming from my engine. Its not enough to ever stall but the rpms do drop around 200 rpms.
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post #2 of 7 (permalink) Old 11-19-2013, 12:20 AM
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You know my balt did this for the first time the other day but it actually turned off but luckily I wasnt at a red light I was in a parking lot I have a feeling its a dirty throttle body

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post #3 of 7 (permalink) Old 11-19-2013, 03:31 AM
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Yep! If you are not getting a misfire code.

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post #4 of 7 (permalink) Old 11-19-2013, 11:30 AM Thread Starter
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Ive herd from ppl that if you clean the throttle body it will turn on a check engine light since its electronically controlled. Am I wrong?
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post #5 of 7 (permalink) Old 11-19-2013, 01:22 PM
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I have cleaned mine and never threw a code.



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post #6 of 7 (permalink) Old 11-19-2013, 01:30 PM
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You just have to make sure key is out of the ignition when you clean the TB.

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post #7 of 7 (permalink) Old 11-20-2013, 01:05 PM Thread Starter
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Just cleaned the throttle body. Hopefully that will solve the issue. It was pretty black so Im thinking that was the problem only time will tell. Thanks u guys.
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