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Old May 12, 2007 | 07:18 PM
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Trans temps

Wondering what peeps are getting on their transmission guages on level ground and under load. I have seen as high as 210 degs.

I am considering getting a Tru-cool Max to add to the OEM cooler but not sure my if my temps justify it.
 
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Old May 12, 2007 | 07:23 PM
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I am running 2 coolers on my 97, and I use synthetic fluid. You can get one with a fan on it. I am cinsidering it. I can still hit 210. My truck loaded is 14k and I pull 10-12k more at times.
 
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Old May 12, 2007 | 07:54 PM
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i know this is kinda off-topic but where did you guys put your trans temp sending units??? i'm in the process of doing my EGT/boost/trans temp this weekend and i can't figure out if i should put the trans in the pan or in the tranny cooler (looks like it has one) thanks
 
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Old May 12, 2007 | 09:08 PM
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Mine is plugged into the drivers side of the tranny housing. I am sure that some of the heat is transferred from the block into the tranny, but heat is heat.
 
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Old May 12, 2007 | 09:16 PM
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thats normal if you run it threw the rad.I run my only with two coolers and gets to 190 deg when I pull my travel trailer thats 10,000 lbs.
 
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Old May 12, 2007 | 09:28 PM
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Glasseater I took the 1/8 plug out of the trans and install the sending unit there. I ran the wires threw the rubber plug under the carpet driver side. I hope this helps you.
 
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Old May 13, 2007 | 05:13 AM
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I put mine on the drivers side just above the pan line. There was a plug there.
 
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Old May 13, 2007 | 04:35 PM
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Same, pulled the plug out of the trans and installed the temp gage in that location.

Your temps justify a cooler, 180 is normal, every consistant 10 degrees hotter after 180, cuts ATF fluid life by half. Occasional temp spikes like if you pull up a hill and cools down after back on flat land does little for oil life.

This is all my opnion from what I've read.
 
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Old May 13, 2007 | 06:41 PM
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I am thinking about moving my sending unit below to the drain plug as I already have a threaded plug for the sending unit. I would like to see the difference in temps in that location.
 
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Old May 13, 2007 | 08:08 PM
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The other issue is that it is ONLY 80's here right now, but it will be climbing soon to the mid to upper 90s. I think I need to upgrade the cooler very soon. I just had my tranny rebuilt and would like to get some miles out of it.
 
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