I am in the midst of an absolute transmission replacement nightmare on my 97 Bonneville SE. It was slipping when hot at highway speeds, so I took it to Aamco. They have replaced it twice, sent it to the dealer, replaced the torque converter, and it still is not right.

It lurches when driven at a steady speed, typically 35 mph. Has anybody seen this sort of thing before. It'* back at Aamco again. They are going to put a certified transmission in it. This is crazy.

Thanx
MAS

Sounds like they didn't fix it right the first time. Haven't experienced your particular problem, but I sure hope they didn't charge you for anything past the first time they had to work on it.

What your describing sounds a lot like your TCC switch. That'* under your dash on the brake peddle. There'* a write up in the electrical section of tech info. Check it out and see if that'* your problem.

Thanx. I may have them take a look at that.

And No, I am not paying any more since the original rebuild, I'm just without my car a lot. Except for actually fixing it, they have been very cooperative with picking it up and other things. They are easily as frustrated as I am.

TECHNICAL

Subject:
Slips, Harsh Upshift or Garage Shifts, Launch Shudders, Flares, Erratic Shifts and Intermittent Concerns, DTC P1811 or P0748 Set (Replace Pressure Control Solenoid Valve Assembly)

That problem is only for vehicles with a 4T65E trans. His 97 should have a 4T60E.