======== firstname.lastname@example.org (Tom)
I have an 03 1500HD 4x4 LT with a 6.0L. I've had the truck 1 year
(purchased new) and it now has 24,000 miles on it. I bought the truck in
July. I live in Orlando FL. (typical 90 degree wheather)
Last summer my transmission temp never went above 120 degrees.
I typically do highway driving in 2 wheel drive without towing anything.
In the last several weeks I've noticed that my tranny temp regularly
hits 180 degrees and has gone as high as 200.
Again, just highway driving not pulling a load. Also, when the
transmission gets that hot I there is a noticable whine at low speeds.
It sounds like a garbage truck, but not quite as loud, but it's very
I took it to the dealer and they said that found an o-rinig that needed
to be replaced and all should be well, but nothing has changed.
Has anyone else experienced this issue?
What should I expect my tranny temp to be running in 2 wheel drive
without towing or carrying a load?
Thanks for your help.
you talk'n Farenheight or Celsius???
120*F CANNOT be maintained in a running,
moving vehical transmission with a factory
setup......especially in Orlando traffic.
Your radiator runs about 180-200*F.......
and IT COOLS your tranny fluid.
The temperature range you have now is
okay, but you should put an aftermarket
oil cooler on the truck to improve the cooling
efficiency, especially if you are towing.
here's a site for you.....
Automatic Transmission Service and Repair - Frequently Asked Questions
jest out of curiousity.........
how do you KNOW what the trans temp is???