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Normal 4.0 Operating Temps?


Joined
May 26, 2024
Messages
20
City
Fort Worth, TX
Vehicle Year
2008
Engine
4.0 V6
Transmission
Automatic
Hey Ranger friends!

I've been watching the temps on my OBDII gauge on my 2008 4.0 and wanted to see where everyone else is at.

I've been ranging between 199-207 degrees. The temp gauge on the cluster seems normal, just a hair behind the middle point. Am I over concerned?

In the past year I've done a Motorcraft water pump, Duralast fan clutch, and a whole new Motorcraft thermostat housing and everything that comes with it. I'm also running Motorcraft Gold coolant I got from the dealer.
 
That's about normal.
 
Sounds about right since the factory thermostat is 192°.
 

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