What is your question?
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What is your question?
I changed all the valve body and parts. Truck drove one day the next day no move. If I increase pedal it will go in gear . Let up pedal back to no move. I was going to pressure test from side of trans. But no pressure
How long has your 1993 GMC C1500 had this problem?
Just started
1 Reply
Hello, You either have a completely clogged filter, a bad pump, low fluid, or a defective gauge. Also, the 4l80e will have different pressure in different ranges.