7.3 transmission cooler - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 5 (permalink) Old 04-05-2014, 11:39 PM Thread Starter
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7.3 transmission cooler

I have a aftermarket transmission cooler. I see 150-180 degree this winter. I bought a 6.0 31 row cooler the other day. My question is, can you have the transmission temp to cool for hauling trailers? I pull trailers 80% of the time. Maybe 9,000 lb trailer.
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post #2 of 5 (permalink) Old 04-06-2014, 12:54 AM
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Re: 7.3 transmission cooler

No. No matter what you do, you will run about 80-90 degrees above ambient with proper cooling.

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post #3 of 5 (permalink) Old 04-06-2014, 01:46 PM
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Re: 7.3 transmission cooler

Quote:
Originally Posted by Diverhardhat View Post
I have a aftermarket transmission cooler. I see 150-180 degree this winter. I bought a 6.0 31 row cooler the other day. My question is, can you have the transmission temp to cool for hauling trailers? I pull trailers 80% of the time. Maybe 9,000 lb trailer.
It depends on what the outside temp is. In real cold temps it is possible for the fluid temp to be too low. You can remedy that by installing a thermostat on the cooler lines.

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post #4 of 5 (permalink) Old 04-07-2014, 12:35 AM
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Re: 7.3 transmission cooler

I've been running an 6.0L cooler and during the winter I would not see any temp over 100*, so I installed a Derale bypass valve that is helping bring the tranny temp up but the highest temp I've seen is 170* but it hasn't gotten really hot yet, so I'm wondering how it's going too handle the summer temps and hauling my 8,000lb+ camper. The nice thing is that I have the fittings so if I need too bypass the valve I can and run the cooler without the valve.

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post #5 of 5 (permalink) Old 04-07-2014, 02:28 AM
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Re: 7.3 transmission cooler

I see about 125* towing with my 31 row when it's below 40*; above 40* outside it can get from 150-180* that's towing on country roads with 7-8 tons on the 28' trailer. Where the real help comes in is if the tranny gets hot the cooler cools it down quick.

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