Hello,

at what coolant temperature does the radiator cooling fan turn on for the GK engine? I’m going to be doing a coolant replacement and will be burping the system.

I like to keep an eye on the engine temperature with my ultra gauge.

 

I did my coolant service last weekend. The rad fan comes on at 203 degrees F. The car will actually cut the throttle if you try and exceed 203 degrees. My GD fan turned on at 208 degrees and I was wondering why I couldn’t get there.