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Old 05-26-2010, 02:47 PM
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TRANNY COOLER

I had my tranny rebuilt recently for the purpose of towing a heavy load. It has all upgraded heavy duty parts. I notice when I am towing the tranny temp on my autometer guage gets up to about 210-220 degrees. This is in stop and go trafic. When I am Going on the highway at at least 60 mph with less stoping the temp reads about 190. I removed the stock cooler and intalled a bigger aftermarket cooler and still get these temps. any suggestions on how to cool this tranny down. How accurate are autometer guages? The temp probe is instaled in a port in the tranny casing just above the fluid pan. thanks
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Old 05-26-2010, 03:12 PM
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Which aftermarket one are you using? Where is it installed? Maybe run 2 in sequence if it is getting that hot?
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Old 05-26-2010, 03:50 PM
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the cooler is called true cool. it is two times bigger than the stock cooler.
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Old 05-26-2010, 04:24 PM
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im running a flex a lite cooler, mounted right behind the grille so it gets immediate airflow. i usually run about 90 degrees above ambient when driving for a long time. when hauling a trailer it varies on how many hills i have to pull. when i towed a trailer from Alaska to TN the only time the temps got pretty warm was when i was in the mountains goint slow pulling some steep hills. i always pulled over when it hit 230 and let it cool down. If i have issues in the future ill buy a 6.0 cooler and fab some brackets to mount it behind the grille as well.
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Old 05-26-2010, 04:34 PM
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Idea

Quote:
Originally Posted by damon george View Post
the cooler is called true cool. it is two times bigger than the stock cooler.
Maybe do like Nismo said and mount a 6.0 in tandem with the one you have now. I don't see how that wouldn't keep things cool.
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Old 05-26-2010, 04:38 PM
BGJ BGJ is offline
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Quote:
Originally Posted by damon george View Post
I had my tranny rebuilt recently for the purpose of towing a heavy load. It has all upgraded heavy duty parts. I notice when I am towing the tranny temp on my autometer guage gets up to about 210-220 degrees. This is in stop and go trafic. When I am Going on the highway at at least 60 mph with less stoping the temp reads about 190. I removed the stock cooler and intalled a bigger aftermarket cooler and still get these temps. any suggestions on how to cool this tranny down. How accurate are autometer guages? The temp probe is instaled in a port in the tranny casing just above the fluid pan. thanks
Some good posts here:
Best Tranny Cooler for 7.3L? (thanks)
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Old 05-27-2010, 05:28 AM
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If you get the tranny too hot with a 6.0 cooler you have issues with the trans. Get a 6.0 cooler and that will be plently!

Just to give you an idea, the bottom is the 6.0 cooler and the middle is the tru-cool that most install. I got that one from bob @ dieselsite
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Old 05-27-2010, 05:49 AM
SJB SJB is offline
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Quote:
Originally Posted by tubular031 View Post
If you get the tranny too hot with a 6.0 cooler you have issues with the trans. Get a 6.0 cooler and that will be plently!

Just to give you an idea, the bottom is the 6.0 cooler and the middle is the tru-cool that most install. I got that one from bob @ dieselsite
Thanks for the picture. I've never seen them pictured next to each other before. The 6.0L is definitely a lot bigger, but I guess since you run the stocker and the Tru-Cool in series it helps make up for the smaller size.
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Old 05-27-2010, 06:16 AM
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stock + the trucool is still only about half the 6.0.
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Old 05-27-2010, 07:25 PM
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i guess it is the size that counts
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