I had the trans rebuilt about 2000 miles ago. Recently it developed a rough idle problem so I took it to the dealer. The theory was that the intake (upper and lower) was plugged up with carbon. $600 dollars later both manifolds had been removed and “scraped out”. The problem persisted and I replaced the EGR valve. That took care of that. But every since the trans shifting pattern has changed, kind of down graded. Off the line if I punch it, it will shift into second gear way too soon. In drive at 30 mph it will half-heartily down shift into second, but at 35 mph it won’t.
On the freeway, in OD it will not down-shift at all. Any thoughts or ideas? I would appreciate any response. Thank you
have the same problem?
Thursday, September 13th, 2007 AT 9:25 PM