Paul Thorson
Junior Member
My truck runs great for an hour, but after that on the highway, it overheats at any speed over 65. The heat starts in the oil and spreads to the Coolant Temp and Transmission. I had an issue with the transmission last year and the part that allows the transmission to cool was replaced. Cooling fan seems slow to come on, but this was in nice weather, not summer heat. If I keep the speed at 65, all is great.
I'm not real savvy on engine work, but it seems like this might just be one part that needs replaced.
Temps at 75 mph after an hour inch up to 226 -coolant, 219-transmission, and 231 -Oil Temp. Oil is the first one to get up there. They came down after slowing speed down to 65.
Any ideas would be helpful.
I'm not real savvy on engine work, but it seems like this might just be one part that needs replaced.
Temps at 75 mph after an hour inch up to 226 -coolant, 219-transmission, and 231 -Oil Temp. Oil is the first one to get up there. They came down after slowing speed down to 65.
Any ideas would be helpful.