Cat 300 running hot on gradea
In 90+ weather when pulling a long grade my 05 Bounder 34m with a 300hp Cat will run in the hot on the guage and the yellow light comes on, I will down shift and let up on pedal. When top of pull it c...
Forum Discussion
The harder you are pulling the more heat it will build. It may hold at a certain speed climbing a hill but if it is lugging along at a lower rpm it will build more heat. When in very hot weather it adds to the problem dramatically. Shifting down alows it to pull the hill easier and not build as much heat plus your fan is cooling better at the higher rpm.
