NEED HELP Transmission fluid temp

Blckshdw

Moderator
Nov 20, 2011
10,685
Tampa Bay Area, FL
This has been posted in a number of similar threads

heatchrt.jpg
 
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Sparky

Member
Dec 4, 2011
12,927
A few things:

1) That chart is a little misleading and very generic. According to that chart, my transmission in my 02 Trailblazer should have died multiple times, and my transmission in my 07 Silverado should be dead now. Good visualization as to how high temps can affect the transmission life, but don't treat it as hard numbers either.

2) On my Trailblazer I saw the same temperature reading in Torque. I also found that it exactly matched my engine coolant temp. I think it was reading the same numbers so who knows what temperature it really was running at? Fluid never was cooked looking or smelling either.

3) I had 215k on that vehicle and never had a transmission issue.

Now, all that said, an aux cooler can never hurt!
 

Mounce

Member
Mar 29, 2014
13,667
Tuscaloosa, AL
Running a Hayden 679 on mine, just drove 200 miles straight and highest I saw was 178. I'd recommend a smaller one though, it was a bitch to mount.
 
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