Hummer Forums by Elcova - Random Revving Problem

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- - Random Revving Problem (http://www.elcovaforums.com/forums/showthread.php?t=17925)

Random Revving Problem

I have noticed for a week now that when going uphill at times around 40 MPH, the RPM's are jumping up and down from 1,500 to 2,000. It's very intermittent, and the uphill and speed factors seem to be the only common characteristics. I've been trying to recreate the problem, but I can't. I called OnStar and they said it may be the torque converter clutch, throttle control, or transmission. Any ideas? I'm out of warranty, and would like to maybe see if I can figure out what's wrong myself, or know where to point the tech. Thanks

Re: Random Revving Problem

Man, Aubs....you must drive that rig ALOT to be out of WARRANTY;)

Re: Random Revving Problem

Quote:

Originally Posted by HummBob

Man, Aubs....you must drive that rig ALOT to be out of WARRANTY;)

I've had it 1.5 years and I have 50,000 miles!