trans axle solenoid change

Asked by May 13, 2017 at 11:37 AM about the 2006 Chevrolet Uplander LS FWD 1LS

Question type: Maintenance & Repair

YES I changed 5 solenoids 206
uplander,and it goes in reverse no
problem,but will not go forward,had a
scanner it picked up no codes,only oil
change,anybody have any ideas on how to
fix the issue,or had the same
problem,accepting all comments,thanks in

1 Answer


My thoughts are more on the mechanical side such as forward clutch, internal issue. Hope I am wrong. Did you try cycling between drive/park - Reverse and drive already? Sometimes there is a relearn procedure for TA's Also basic scanners will not always show hidden codes stored and would need a vehicle specific scanner i.e for Chevy or other manufacturer. Some transmissions may need to have the PCM software loaded for transmission calibration files. With all this I assume you properly seated all the solenoids, harness wiring was in good shape/no breaks and the fluid level is at proper level when hot. As a last ditch effort unplug the battery and give it another shot but I still think this is a mechanical problem. Good Luck!

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