transmission temps - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 22 (permalink) Old 06-12-2006, 08:01 PM Thread Starter
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transmission temps

I am just trying to find out what is an exceptable temp for the trans to get up to, or what is the hottest I can run it at without damaging it. I have the temp sensor mounted in the line going to the heat exchanger from the tc. Any help would be appreciated.:thanks:

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post #2 of 22 (permalink) Old 06-13-2006, 12:12 AM
 
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I try to keep mine under 400.

I'm also just got done rebuilding mine.
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post #3 of 22 (permalink) Old 06-13-2006, 01:28 AM Thread Starter
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So, I guess me getting nervous about 210 is rediculous , I thought I heard that was a little hot, but if 400 is high, then I will stop freaking out about a little over 200. I just rebuilt mine also

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post #4 of 22 (permalink) Old 06-13-2006, 01:53 AM
 
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I actually don't know. What makes it worse is I work in a Trany shop that puts life time warrentys on Dodge Cummins tranys. And to put the icing on the cake, I've been driving around with a busted up trany cooler from a wreck. 210 does kind of sound high IMO, but I really don't know for sure.
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post #5 of 22 (permalink) Old 06-13-2006, 03:46 AM Thread Starter
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It only gets that hot if I am sitting in traffic, when I had mine rebuilt, they put 2 new coolers on it, and stopped using my original one, so I took it off, I think what keeps my trans a little hot is the new coolers are sandwhiched inbetween the air to air and the radiator. If I am driveing down the highway, it stays right inbetween 150, and 180

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post #6 of 22 (permalink) Old 06-13-2006, 01:15 PM
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270* is were ATF starts to break down...but I'm not sure about this new fangled ATF+3 and +4 since it is a low grade synthetic...

I ran a sensor in the pan...only got to 180*s once, and that was towing while in very heavy traffic (stop and go)...IIRC, it ran about 20*s warmer than ambient air temps cruising down the road...but again, this was taken from the pan...your readings should be higher than mine...

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post #7 of 22 (permalink) Old 06-13-2006, 05:05 PM
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Mine is around 150-180 pulling a big grade. 210 is gettting alittle warm.

'01 xcab 4x4,Suncoast by Mike L. Goerend triple, edge III, AFE stage II, HTT 62/12, FASS, and other stuff
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post #8 of 22 (permalink) Old 06-13-2006, 10:46 PM
 
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Quote:
Originally Posted by bcumminsmeck
It only gets that hot if I am sitting in traffic,

Make sure you stay out of park then, a stock Dodge V/B has NO COOLANT flow to the cooler in PARK.

How flippin' stupid is that?
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post #9 of 22 (permalink) Old 06-13-2006, 11:53 PM Thread Starter
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when I am in traffic, I put it in neutral evey chance I get, never in park. I guess I should also mention that when I got it rebuilt, I got a shift kit put in, and the line pressure raised, not sure how much, but it was supposed to be raised. I am guessing that could also cause a little more heat

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post #10 of 22 (permalink) Old 06-14-2006, 02:00 AM
 
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Wouldn't line pressure increase coolant flow????
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