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  1. J

    4l80e failing after going on overdrive

    I got a 2002 sierra 6.0 with the 4l80e, the truck runs good until it catches the overdrive after slowing down the truck seems its not dropping gears. if I get to a full stop it wants to stall. The other thing is that reverse barely catches after and slips quite a bit after it goes on O/D. But I...
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