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DTC Codes PO128,PO234, PO463 and tranny problem...PLEASE HELP!!

2264 Views 0 Replies 1 Participant Last post by  klbmotorsports
2001 chevy duramax 6.6 L with auto allison tranny with DTC codes PO128,PO234, PO463. Also having tranny problem, goes out of gear when stopping and the hits REALLY hard going back into gear....Please Help
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