chevyrider838
OBS Enthusiast
99 K1500. Replaced compressor, a/c hoses, accumulator, condenser, upgraded to 140 alternator, belt drive tensioner, and serpentine belt. Speedometer and rpm gauge aren’t working. Also experiencing slow acceleration from stop as if the truck is in a higher gear and getting codes PO0740, P1860, PO758 and PO753 all seemingly related to transmission solenoid and shift. Could I have unplugged something that I shouldn’t have? Any suggestions? Looking for the fix. Thanks guys.
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