I rebuilt my transmission a few months ago and I had an issue with it heating up to what it said was 290* I had a local transmission place look at it and they thought it was a bad sensor and so they replaced my harness and temp sensor in the transmission and sent it on its way. The fluid wasn't burnt, nor was the temperature ever as indicated. Tested it with an infrared temp sensor and the temp was a cool 180*ish.
The other day i took a 1.5 hr trip and on the highway, it kicked me out of fourth gear, which is an indication that it has overtemped. i got home and the temp via HPT read 260*, but the temp of the pan was 165* via the IR and the fluid temp off of the stick was 180*. I also saw no indication of bubbling on the fluid.
Does anyone have a good explanation of what is going on and is there anyway to eliminate the fourth gear lockout (temporarily) until i can get this issue sorted? I have talked to, but have yet gone to the shop again to get this issue re-diagnosed. I have a long trip i will be on soon and I cannot be held up by a fourth gear lockout again.
CLIFFNOTES: My tranny thinks its heating up, but it is only at 180*. anyone have an idea why?
