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
wolfe10 wrote:hostage wrote:
seeing as the rad etc is clean the only thing I can think of is the fan clutch is weak and slipping ?
Two points:
Most rear radiator coaches have direct drive fans, not clutched fans. Yes, there are a few, particularly newer ones that are clutched.
While cleaning the radiator is important, it is critical to understand the the vast majority of the blockage will be on the FRONT (toward front of coach) of the CAC (Charge Air Cooler) which can only be accessed from the front (through the bedroom or closet).
I have more practise on side cooling but the few rear I have seen are clutch controlled hence my comment;also the OP clearly said the CAC was cleaned so one has to assume it was done and done correctly
