2001 Pontiac Grand Am GT loses power and RPMs jump

Unsure
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Joined: Mon Sep 15, 2014 5:24 pm

2001 Pontiac Grand Am GT loses power and RPMs jump

Unread post by Unsure » Mon Sep 15, 2014 5:38 pm

What would cause an'01 grand Am GT to lose power when accelerating? The RPMs also flutter-almost like the transmission is slipping. When you let off the gas then it will straighten up a little,shift gears, and you can accelerate. The RPMs have been fluttering for a while, but used to only do it in Overdrive, so I nought there may be an issue with the transmission...now,I'm not really sure what to think. The transmission repair shop hooked it up to a diagnostic computer and found no problems and doesn't seem to think this is what it is.

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carriedi
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Re: 2001 Pontiac Grand Am GT loses power and RPMs jump

Unread post by carriedi » Mon Sep 15, 2014 9:06 pm

does the engine sound like the rpm's are jumping (does the engine match the tach) if your trans is slipping it will raise the engine rpm and there will be a power loss but that (to me) would be different than fluttering.
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