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Trany slipping 2009 GMC


AZone

Question

Hi All,

 

I am not a mechanical person and was hoping someone might offer some insight.

 

I have a 2009 Z71 extended cab with about 70k. The transmition was worked on by the dealer a few years ago for the same problem but no as bad as it is getting. Their fix helped but it never really went away.

 

Erraticly/sometimes when I start the truck I can feel a bump/clunk, feels like the trany is jarring together, also when I am driving I can feel it clunk into/out of gear.

 

I am taking it into the dealer today for a transmition flush and oil change and was wondering if anyone would know what it might be? I have an extended warrantty through the dealer up to 100k so I hope to get it fixed right.

 

Thanks for any replies

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2 answers to this question

Recommended Posts

First check the U joints and then the suspension bushings. Those are the first things I check whenever I hear or feel driveline thumps and bumps.

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