Question about 2006 Chevrolet Colorado

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Why does my rpm gage bounce when i push my clutch in?

I have 2006 Chevy Colorado 2.8l vortex (standerd). Idles is Great never have any problems. The problem is when i press my clutch in when coming to a stop. When i press my clutch in when coming to a stop from time to time (not always) my rpm gage bounces back and fourth from around 700rpms to around 300rpms and has before even shut down. Once i come to a complete stop when this happens the idle comes right back to normal as if nothing was wrong. what do you think that they problem is with my truck and what needs to be done to solve it. Or is it normal for a Standerd vehical to act in stuch a manner?

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May be an iac motor slow to react to change in load. RPM will change when shifting or engaging/disengaging clutch. Does not sound serious yet ... If you can, compare with similar vehicle and see it it does the same.

Posted on Feb 06, 2009

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