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Old 12-19-2015, 07:16 AM   #15

2003 25' Classic
Zanadude Nebula , WNY
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.


AF #1

"Sticks & stones can break your bones...and hail will dent your Airstream"

So when is this..."old enough to know better" supposed to kick in?
ROBERT CROSS is offline   Reply With Quote

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