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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Transmission Coolers???

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Old Aug 9, 2006 | 10:44 PM
  #1  
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Transmission Coolers???

I have the 6.0L motor and torqueshift tranny and I am interested in aux. transmission coolers.

1) What brand(s) are quality systems for the torqueshift?

2) What flow rate or size should I look at? Will it rob my tranny of flow and pressure?

3) Do I need by-pass valves so I do not "over-cool" in winter?

4) Are the kits designed and instalation made for the SuperDuty/Excursion trucks we drive... or each each install of a aux. cooler a custom install per brand of truck it is added to?

What is the normal tranny temp (non-towing) of our tranny's and how much cooler can I expect with aux. cooler?

5) What other factors should I consider that I have not asked above?

Thanks,

Jeff
 
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Old Aug 9, 2006 | 11:38 PM
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Derale makes some quality coolers, they are the same thing ATS puts a sticker on and charges you more money for it. Larry just listed the Derale line on our new store, so Im not sure what cooler would be best for your application, I will make a note to ask him about it tomorrow. For maximum cooling they have a setup with a fan and thermo sensor on it that suposedly works very well.
 
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Old Aug 10, 2006 | 09:42 AM
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Doesn't it already have one? I see 165* unloaded. A bit hotter in the summer. Just keep her below 200*.
 
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Old Aug 10, 2006 | 12:03 PM
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Don't change the stock cooler! You can't get a better one aftermarket. The stock cooler is HUGE, and cools much better than anything else you can get.

The TorqShift has a thermostat that limits the flow to the coolers until the trans is warmer than about 160°F.
 
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Old Aug 10, 2006 | 12:30 PM
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Originally Posted by Casey
Don't change the stock cooler! You can't get a better one aftermarket. The stock cooler is HUGE, and cools much better than anything else you can get.

The TorqShift has a thermostat that limits the flow to the coolers until the trans is warmer than about 160°F.
So is the concenus that no aux. tranny coller is needed for the 6.0L/Torqueshift? Is the built-in cooler that comes standard adequate for all towing needs... even when it is 100F outside?

Does adding an AUX tranny cooler to the existing set-up hurt anything... or just a waste of money? Can one over-cool their tranny fluid (at least in the winter)? Are their models with by-pass valves that prevent overcooling?

I am looking for a straight-forward to systen without the fans and electrical hook-ups.

Is this the one aspect of this truck that no aftermarket coolers or mods are needed?? Am I reading the above replies correctly so far?
 
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Old Aug 10, 2006 | 12:49 PM
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I agree that an aftermarket cooler isn't necessary. I don't believe overheating has been an issue with the TorqShift, they don't even need a deeper pan than stock. Ford designed this transmission very well and it is definitely up to the job of towing, even in higher temperatures.

I towed my 12K trailer through the Mojave in June this year. It was 114 and the factory gauge barely moved. The engine fan came on quite a bit when I was ascending grades and the engine temp rose. No overheating though.

It's not broken, don't fix it!

Russ
 
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Old Aug 10, 2006 | 12:52 PM
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This is one system of the truck that you can't improve with aftermarket parts. The cooling system is GREAT on these trucks. Adding an aftermarket trans cooler is going to make this truck run HOTTER.

I've never seen (though that doesn't mean it doesn't exist) an aftermarket cooler with 1/2" lines. If you put smaller lines in the cooling system you are going to restrict the flow, and that may cause you to buy a new trans.

At work I've driven a 6L/TorqShift F550 with a 35' cargo trailer. I was loaded to just under 30,000 pounds leaving Bullhead City, AZ, up over Union Pass. That's about an 8 mile, 8% grade. It was 110°F in Bullhead City when I left. I had my right foot PLANTED on the floor all the way to the summit! The trans never went over 200°F, and I never went over 45 MPH. You can't improve on that cooling.
 
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Old Aug 10, 2006 | 09:29 PM
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If the truck needed an aux trans oil cooler, it would have been in an option package, such as a trailer tow package. GM did this in the 90s, Im not totally sure if they still do?
 
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Old Aug 10, 2006 | 10:05 PM
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After market coolers with 1/2 inch lines are pretty common. I found plenty when I was looking into a aux cooler. I too though have found that it isn't necessary to add one. It used to be that the cooler the trans the better, however, as Casey has stated, this tranny doesn't need one. I have been told by numerous sources that the coolers on this tranny do all you need. There are some after market units that do have temperature valves built in.
 
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Old Aug 12, 2006 | 07:45 PM
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Wow.... thanks for the advise...

I am blown away that for all the mods that people do, that the tranny AUX cooler is not one of them or needed. I have never had a problem, but being that it is 100+ here in KC, I thought I would ask.

For all the bashing that Ford takes for the 6.0L motor.... guess we should put the Torqueshift tranny in a museum since it seems to be doing well and engineered well... based on what people are reporting here.

Just for kicks... does anyone make an AUX cooler that fits the 6.0L and does not reduce pressure below specs?
 
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Old Aug 12, 2006 | 07:53 PM
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Jeff--I was helping someone put their truck back together a few evenings ago and after I discovered how large (as big as the radiator in my 93 silverado) the tranny cooler was I was blown away. I kept thinking the powersteering cooler under the front was the tranny cooler. Boy did I feel stupid. The tranny runs about 180 pulling 4K up a 4-7% grade here in North Carolina running 70-80. 175 is pretty much normal. I've done the service at the recommended times on my tranny just to prevent warranty issues with my aftermarket warranty to be safe, and It's been abused much more than the normal 6.0l tranny, I promise.
 
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Old Aug 12, 2006 | 07:58 PM
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Originally Posted by npccpartsman
Jeff--I was helping someone put their truck back together a few evenings ago and after I discovered how large (as big as the radiator in my 93 silverado) the tranny cooler was I was blown away. I kept thinking the powersteering cooler under the front was the tranny cooler. Boy did I feel stupid. The tranny runs about 180 pulling 4K up a 4-7% grade here in North Carolina running 70-80. 175 is pretty much normal. I've done the service at the recommended times on my tranny just to prevent warranty issues with my aftermarket warranty to be safe, and It's been abused much more than the normal 6.0l tranny, I promise.
I am sold.... I do a 100% fluid change every 25,000 - 30,000 miles and all is well with mine!!! Thanks for the comments above and observations.
 
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