My 2003 Ram diesel automatic has had this problem before and under warranty they "fixed" it (don't know what they did/didn't document it.) Now we're way out of warranty and it has started again. I'll be driving down the freeway, whether at 65 or 85mph, and I'll feel the truck suck back power for a split second then the whole thing lunches, jarringly slows down with crazy revs going on, it red lines the tach and I'm in 2nd gear! Along with this problem is the fact that I feel the truck has lost a bit of oomph. I feel it sucking back when I step on the accelerator; it feels like a pressure build up and you can hear the engine revving higher, but it doesn't go a lot faster like it used to. And it feels like it's going to slam into 2nd gear. Have also lost a bit of towing power too. WTF?
I initially thought it was the transmission, but it really isn't. Tranny works fine. Could it be the PCM or the MAP? Would any of this be covered under the "Powertrain" portion of the warranty (which is more extensive/longer than the standard portion)?
Anyone have this problem? Or is it just my doomed truck? (I've had EXTENSIVE problems of EVERY sort with my truck.)
~Bev