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Old 12-19-2015, 07:16 AM   #15

2003 25' Classic
Zanadude Nebula , Milky Way
Join Date: Jun 2007
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Originally Posted by Bob662 View Post
I wonder if at least the later model F-150's have a thermostat on the transmission coolers or perhaps the transmissions themselves. Mine seems to run at 190dF, no matter the outside temperature. With a trailer behind it I'd suspect it may creep up some more, but that's yet to be determined.


Most trans coolers will have a by-pass for cold Weather start-ups, just like engine oil, you want the fluid to warm up as quickly as possible. (start & let idle not recommended, (start,oil pressure=drive.)

190* is fine, critical breakout on our Burb is 275*, limp-mode is around 270* steady for 5min.
Ck your vehicle owners manual......

I'm quite sure the Ford Powertrain Control Module is similar and will engage "limp" to help prevent damage.



Sandra wanted to go to Cleveland on vacation,
but Iím the Husband, so we went to Cleveland. 😂

Step aside Starbucks, this is a job for alcohol.
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