RANDOM OVERDRIVE PROBLEM
1995 BONNEVILLE SE
I had a used transmission put into my car two months ago and had intermittent problems where it wouldn't shift into overdrive. I would pull off the road and turn the car off and start back up and the overdrive would work again.
I read about problems with the TCC selenoid or valve body cross leaking on this forum so I told the transmission guy to install another transmission in my car because there was a problem with the one he put in.
I just received my car again whith another transmission in it (from a wreck, but in good shape) and it worked well for two days. Now it'* starting to have the same problem where sometimes it won't shift into overdrive. I think it'* mainly when the car is warmed up.
I know it'* not the transmission now, could it be the PCM?
Anyone have any ideas what would cause this, the electrical connections are clean.
Thanks for any info ....