frankencummins
New member
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. :thankyou2: