May 3, 2011I have been having problems with my transmission not wanting to go into overdrive lately as well as overheating when this happens rather rapidly and became quite concerned because it only has 9k on it since it was completely rebuilt.
When I took it in to the shop that rebuilt it to have it looked at the guy came out and told me the brake light switch was out according to the diagnostic he ran with the tool you hook up under the dash. I was like, ya big deal, its been out for a long time (works intermittently). then he told me that the specs say when it goes out for more than 3 cycles it disables the TCC and wont let it go into 4th gear and overdrive. I was dumbfounded because not only have I never heard of this, but seeing as its been out for so long I didnt think it would cause any problems....especially with the transmission. Im still a little skeptical because the transmission is also overheating which I wouldnt think it would do even if the brake light switch werent working....seems counter prodcutive seeing as heat kills transmissions.....i guess it could just be another engineering flaw.
The only thing making me think he is right is the fact that this is the first time the computer has noticed it not working (maybe its completely crapped on me now) and sends an error code when running a diagnostic. I havent noticed because the SES light is always on because of two bad O2 sensors that I havent gotten around to fixing yet.
I had a diagnostic run about a month ago and then two months prior to that and both times only showed codes pertaining to emissions....
Has anyone ever heard of this? I know I havent.
Before I get blasted for not having working brake lights, I am replacing it tomorrow!
However, do you think this is the root of the problem? I am thinking I will just fix it and tell them the transmission still needs to be looked at because I simply dont want to get stuck at the beach (which I frequent a lot in summer time) or somewhere in the middle of Texas with a transmission that has no OD and is jumping to 260+ degrees.