Dodge Cummins Diesel Forum - Reply to Topic
07.5 - 09 3rd Gen 6.7L Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine, Transmission, etc...NO ADVERTISING

Thread: High coolant temps Reply to Thread
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  Topic Review (Newest First)
04-13-2019 07:45 PM
Jsindle Don't know what programmer is in it was done before I got.
No bubbles in tank.
And I made sure fan clutch is engaging you can hear it working.
Possible t stat
04-13-2019 07:51 AM
the man in black Thermostat could be not opening fully. Rad stack could be dirty/plugged.
Make sure the new fan clutch is actually locking up. Should make a heck of a roar and be fully on by 215ish if I recall correctly.
Do you ever have any bubbles in the overflow? Level stay in the good range?
What tuner and settings you running?
04-13-2019 02:01 AM
Jsindle
High coolant temps

I have a 2008 mega cab. Bought used a couple months ago. Egr delete and exhaust is already done. When I drive around town or freeway temp is normal range. When I tow my 28 ft toy hauler temp will go to last mark before the hot red mark at 240 degrees. Has a new fan clutch in November

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