Interesting idle phenomenon

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Feb 14, 2013 | 09:01 PM

SFCobaltSS

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From: San Francisco

Interesting idle phenomenon

Okay so sometimes when I come to a stop light, my car starts to thump, almost like a heart beat. I have no CEL and the tons don't fluctuate. Any clues?

Feb 14, 2013 | 09:13 PM

silvercharged

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From: waterloo iowa

Turn the sub down.............

Feb 14, 2013 | 09:14 PM

SFCobaltSS

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Quote:

Originally Posted by silvercharged

Turn the sub down.............

haha that's pretty funny, but yeah it's definitely not that.

May 11, 2013 | 11:32 AM

SFCobaltSS

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My car is still acting up, every now and then when I cruise to a stop light,once I stop the car throbs. Any ideas?

May 11, 2013 | 11:36 AM

turbosmart4

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Turn off the ac.......

May 11, 2013 | 11:40 AM

andrewcarr1993

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Clean the throttle body and I'd be surprised if that doesn't fix it.

May 11, 2013 | 11:43 AM

riceburner

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Try cleaning the throttle body and mass aif flow sebsor first. If that dont cut it replace the vacuum libes, that did it for me

May 15, 2013 | 12:43 AM

SFCobaltSS

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The throttle body is actually only a few months old, MAF sensor is probably the culprit. Can it also be the plugs misfiring or not gapped correctly?

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