[SIZE=7]Please help. I’ll try to keep this as short as possible.
I own a 2000 Chev. Impala with 90,000 miles. Has never given me any problems. A few weeks back, the check engine light came on. Took it into Autozone and a diagnostic check showed a code of P0742. TCC Solenoid Stuck On.
This was not a hard failure as the trouble came and went as you drove. There was never any feeling that that the car wanted to continue on, upon stopping. It never while stopping or slowing down. After a few starts, the light would reset, go off and remain that way for anywhere from a few miles to several hundred miles before coming back on again. After a few starts it would reset again.
While the CE “check engine” light was ON, the vehicle would have a bad sluggish feel at times.
Had one of several mechanics I spoke with, drop the pan and check in the transmission. Pan was clean with no shavings however the fluid was dirty so, had him change the fluid, as well as the filter. He recommended adding an Automatic Transmission Fluid Protectant made by “lubegard”, which was done at that time.
Since that time, the vehicle has been driven several hundred miles and the light has not come back on however, a part of the same problem has returned. I have noticed that when reaching speeds above 45-50 MPH, the vehicle feels very sluggish and as though it needs a tune up. When you take your foot off the gas and then give it gas again, it corrects itself, accelerates fine, sometimes and sometimes not. The transmission goes through all gears without any problems or noises so, I don’t think it’s a slippage problem. Slows down and comes to a stop fine. No feeling as though it wants to “lurch” forward and no stalling. Idles just fine when stopped.
Does this sound like it could be a tune up or fuel injection problem that’s just shown up or if it’s a TCC or solenoid problem, wouldn’t the CE light come back on? I know the lights not burned out because it lights during the start up check. The only bad TCC symptoms that have shown up, according to what I have read or been told, is a poor performance problem. Nothing else is showing up to indicate a bad TCC, unless someone can think of something else to look for or test for a bad TCC.
Any ideas or help would be very appreciated.Thanks![/SIZE]