Intermittent O/D off light, hard shifts.
Working on a '97 OBS e4od truck with 285k on the dial which is new to a friend of mine. The O/D off light will come on irregularly and results in hard shifts but still has O/D. Doesn't throw a code, or slip. I'm thinking there's an electrical gremlin in the old girl, but could use some guidance to point me in the right direction.
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'15 Laramie Longhorn 3500, CTT Tuned (RIP),Revmax Signature 850, 60/60 towboss, S&S Torquemaster.
Sans government juice
'00 Cummins FASS 150, Airaid CAI, 5" exhaust, Quad Adr w/pv2, DAP 160's, Revmax signature series,triple disk, SDX 62/71/13. Perpetual project
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