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Old Jul 10, 2010 | 06:09 PM
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tranny temp problems

ll I hooked the trailer up and went about 80 miles from home... tranny got to 220 by the time I got there. When I left I had a oad of another 5000 pounds. I have now pulled over now that the tranny is 230... would a true cool take care of it? Right now ts stock cooler and I have a total of 11000 pounds behind me. I'm sitting on the side now letting it cool Or is there something else I should look at?
 
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Old Jul 10, 2010 | 06:19 PM
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My last trip with the trucool on I never got above 200, it was 90* outside. That's with the trailer in my pic. I don't know how it was before the cooler, as I didn't have a gauge. People on here said it will drop temps 20-30 degrees, if that's right sounds like just what you need. My trailer loaded is +/- 16k. Mark the tranny guy on here said you can run 220 all day long and up to 250 in less than 30min. intervals without causing damage.
 
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Old Jul 10, 2010 | 08:42 PM
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Yea I plan on a bigger cooler... going to mount it right where the bumper is on the back side and take up most that area...
 
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Old Jul 11, 2010 | 11:22 PM
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I did the overkill, I have the true cool and a hayden.
 
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Old Jul 12, 2010 | 07:21 AM
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Bigger cooler and a Torque Converter lock switch will help keep temps down a lot.
 
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Old Jul 12, 2010 | 07:24 AM
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I have a torque convertor controller that will lock my TQ up at certain MPH inciments... I have it set to lock right around 33 MPH right now. The exhaust brake is sweet, it will slow you down quite a bit when you let off the throttle and the torque convertor is locke.
 
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Old Jul 12, 2010 | 07:31 AM
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Tru cool it up then!
 
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Old Jul 12, 2010 | 09:19 AM
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I'd say there's something wrong with your stock cooler.
Mine would run around 190° - 200° and it wasn't till I pulled it off to install the intercooler and 6.0 trans cooler that I found the backside of all the fins bent flat on the oem trans cooler. Darn thing wasn't getting any air flow through it.

Trucool should help you big time.
 
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Old Jul 12, 2010 | 09:51 AM
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You could have bent fins or a blockage in the stock cooler.
 
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Old Jul 12, 2010 | 03:05 PM
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Was the OD off and what tach numbers were you running at the time?
 
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Old Jul 12, 2010 | 03:11 PM
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speed limit was 65 so I was doing bout 60 and had my tachometer around 2k the whole time in 4th gear over drive.
 
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Old Jul 12, 2010 | 03:21 PM
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2k not too bad for that light of a load. Were you ******* it on the take off were there many hill etc to climb?

yea I would just drain all the fluid replace the filter (watch out the old filters o-ring likes to hang up in there and if not noticed can fry the tranny if the new filter falls out) and then install the biger cooler
 
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Old Jul 12, 2010 | 03:54 PM
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Originally Posted by DRRXR
2k not too bad for that light of a load. Were you ******* it on the take off were there many hill etc to climb?

yea I would just drain all the fluid replace the filter (watch out the old filters o-ring likes to hang up in there and if not noticed can fry the tranny if the new filter falls out) and then install the biger cooler
Could have been 2100 but still not terrible considering what I was towing... Im going to install the tranny cooler and see what happens and once the temp stays down ill replace the fluid.
 
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Old Jul 12, 2010 | 04:02 PM
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I would not install the new cooler with out changing the filter and fluid first.
 
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Old Jul 12, 2010 | 04:07 PM
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Originally Posted by DRRXR
I would not install the new cooler with out changing the filter and fluid first.
Much easier to clean a cooler out than having to keep changing the fluid because it didnt help. Tranny coolers are super easy to clean out... not only that but i can always take it off and liquid blow it out too. Never had an issue doing this before on my race cars after I have blown up a transmission. Cleaning them are easy.
 
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