2000 Pontiac Montana Q&A

2000 Pontiac Montana Question: tranny overdrie

my 2000 montana has 140000 mi. on it transmission works good just no overdrive, what could be the problem -
Answer 1
i work at a tranny shop and fixed this problem a few times. the overdrive drum has a short shaft at the end of it with very fine splines. after a while the splines wear out and strip, causing the drum not to spin. the tranny wont blow up, but i recomend getting it fixed asap because of the fine metal shavings in the tranny. -