24v Cummins with 47re tranmissions truck will not shift out of low gear. Does the lift pump have anything to do with the shifting?
Saturday, June 24th, 2017 AT 8:05 PM
1 Reply
CARADIODOC
MECHANIC
34,095 POSTS
Nope. I do not remember if a kick-down cable was still used in 1999, but if your truck has one, check if it is sticking. That was a real common problem that caused delayed or late up-shifts, and early and harsh down-shifts.