4L60E 2-3 shift problem

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sdt1985

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Dec 31, 2011
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My 2005 Tahoe which has never given me a bit a problems doesn't want to shift from 2-3. If you pump or feather the accelerator it will shift and then drive fine. It has a 120K miles, fluid is clean not burnt and it has no DTC codes. I dropped the pan and checked the shift solenoids. they both have 25-30 ohms.
I was going to throw a pressure switch at it and cross my fingers.

Anyone have any suggestions or ideas? I have a feeling a rebuilt is in my future.
 
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