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  #1  
Old 07-12-2014, 08:35 PM
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Tru cool problem

So a few weeks ago I put in a tru cool trans cooler in series with the stocker. Heres the problem when towing in the mountains and less than 35 mph the temps will climb to 230 which I then pull over, listen to wife complain, let it cool down then proceed on. This has happened both camping trips when towing 8000 pound combined weight camper and four wheeler trailer. Would I be better off bypassing stock unit as in series the fluid doesn't flow as well. I'm a bit confused and definitely frustrated. Any ideas?? Thanks.
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Old 07-12-2014, 09:03 PM
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Are the temps the same as prior to installing the tru cooler?
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Old 07-12-2014, 11:05 PM
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Originally Posted by heykw View Post
Are the temps the same as prior to installing the tru cooler?
Seems almost warmer now. They used to get up to 220, but that was just on the highway and not the slower towing speeds. This is my first year with the torque app versus trans temp gauge, which crapped out. I realize the temp pulled from the PCM will show warmer but 230 is hot. So I pull over and let it cool down if still have mountains to climb.
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Old 07-13-2014, 07:55 AM
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my torque app measures cooler than my gauge, but im pretty sure my gauge must be bad... fwiwm, i did away with my stock unit. Jut the true cool there. the other day i pulled from tulsa to houston in 95 degree heat, and my trans temp only hit 215 once with the app. No mountains..., but i dont think it should be getting that hot.

Is your converter locked up at those speeds? Are you in drive or do you manually put it in 2
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Old 07-13-2014, 10:17 AM
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Both actually. When it hunts I help it. I dropped it to second till I finished the pass and this is in my 65 tow tunes which I assume would keep the tc locked more. It is hot right now, around 100 so I see how without the airflow it would get warm, but I don't think I should be seeing 230. Airflow is key because at 55+ it does just fine.
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Old 07-15-2014, 06:41 PM
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So would it be better to run the new cooler solo or in series with stock unit? What is the absolute highest temp I should be okay with reading from the PCM on my torque app?
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Old 07-15-2014, 07:07 PM
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I would think the more the better reference the coolers
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Old 07-15-2014, 08:02 PM
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That's way too hot! I have the 26 row 6.0 cooler and my temps never get over 80-85 degrees above ambient temp when I'm towing my 10k LB trailer. That's mountains or flat ground. On the stock cooler my temps would push up to 215-220* but now they never get over 190.
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Old 07-15-2014, 08:10 PM
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If possible at low speeds like that switch into 4low. It will help with heat because you torque converter isn't locked up and is creating heat.
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Old 07-16-2014, 03:44 AM
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I'll give that a try if going real slow again on dirt road.
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