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Guys in cold climates...whats your trans temps?

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Old 11-28-2010, 03:57 AM
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Originally Posted by AKlowriderZ71
It doesn't take too long (10-15 minutes) for my trans to be above 120 degrees. In the winter, it usually runs around 135-140 degrees. I have the 40K cooler also, but without the external cold-weather bypass piece of crap.

BTW, that's the same operating temps(135-140) that it runs in the summer time.

What I'm trying to show is that my transmission runs the same normal temps in the winter that it does in the summer. Just like my engine coolant temps.
Yea, but how cold does it get in Alaska really Roger?

J/K...and the pic of the trucool box that you posted shows that the external cold weather bypass is just a gimmick when paired with this cooler
Old 11-28-2010, 06:30 PM
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Even my bone stock 4L60-E when it is hot out runs about 140-150

When it is below 10-20 degrees mine runs about 115-120 going up and down mountains all day with no problems, as long as the temp is above 100 degrees the TCC should have no problem applying
Old 11-28-2010, 06:53 PM
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CD 258mm 3400 vert 105* outside ive seen 180+ with no cooler
Normal i get 140-160* and sometimes cooler when lock up is being used for long periods fwiw
You want it cool!
Old 11-28-2010, 07:07 PM
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Originally Posted by budhayes3
Yea, but how cold does it get in Alaska really Roger?
Only a little cold...
Old 11-28-2010, 07:23 PM
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mines right around 140 degrees at 40 outside cruising on the highway today and when i hit a traffic jam, shot up to 190. this was all in sport mode tuned before the 6 inch lift with 35's and with stock gears.
Old 12-06-2010, 06:34 PM
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iat was 19* while moving right before i stopped to take the pic, and compass said 14* out..
no converter with stock cooler


15-20min ride home with slight stop and go except for the last 3-4miles being highway=lock up (which happens at 75* on the dot)
this is with at least 10 if not 15min of warm up time and some heat (40*) probably still barely in it from lunch time 4hrs earlier

moral of the story you guys in warmer places concerned about 130* temps have nothing to worry about imo..
Old 12-07-2010, 12:37 AM
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^^^ I agree.
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