Overheating when climbing hills
We are new to RVing. We purchased a 92 Fleetwood Bounder, 34 ft. It has a Cummings engine and Allison Transmission. It runs excellent EXCEPT for when climbing hills. The temperature gauge sits at ...
Forum Discussion
AZCowboy wrote:
They claimed it wasn't downshifting properly.
What transmission do you have-- Allison 4 speed hydraulic transmission or Allison 6 speed electronic transmission?
And when he claimed it was not downshifting properly, what was the engine RPM at WOT before it downshifted. It should never be below your peak torque RPM. And, yes, manually selecting a lower gear will lower temperatures, particularly if you back out of the throttle a little. Both water pump and fan are turning faster for virtually the same heat load.
