The transmission is not shifting to high gear after 40 miles. It has reverse, low. drive one and 2. It stays over 3000 rpm, and it doesn't shift up. I changed the 1-2,3-4 selenoid inside the tranny. The transmission is a 4L60-E. I think the high speed clucthes are gone. Is there any other posibility, before I drop the transmission?
Jun 24, 2009 at 4:37 PM
