Question about GMC Sierra 2500HD

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1996 GMC 3/4 HD 4L80E STD. Cab

Shifting from overdrive to drive,55/60 MPH also more frequently during high moisture and rainy days and in/out of cruise control.

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Mine does the same thing i cant figure it out

Posted on Jan 25, 2010

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I have a 1999 Chevy 2500 he diesel and over drive pops in and out...now it will not shift from first


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