|
When mom had this problem with her '95 (which I'm about to buy) it turned out to be the transmission. It was a bear; we've got a great trans guy here locally, Herb, and we took it to him when the dealership couldn't figure it out (their solution was to replace the CPU, then throw up their hands.)
Herb was sure it was the transmission, but couldn't find the problem. So he pulled it and put in a rebuilt unit, which left her with exactly the same problem. So we took it back and Herb tried everything he could think of--again. He was still convinced it was the transmission hunting a gear (it always happened between 45 and 65 mph, it seemed.) Eventually he took the old transmission (which he had since rebuilt as well) and put it back in. Now the problem disappeared!
Turns out the original transmission had a tiny, freak pinhole in a valve body, probably from casting sand or something. The crazy thing was that the replacement piece had the same hole in precisely the same place, which explained why it didn't fix anything.
Herb charged mom the price of the rebuild parts and the labor he'd have charged for the original rebuilding, which was about a sixth of the labor he actually put in. We're all going to be using Herb for a long time.
|