I find this issue quite odd. Our coach has a CAT C7 and I have monitored all functions via a Palm Pilot since new. The engine temperature warms to 203 to 205 degrees then the fan kicks in and the temperature will drop to 195 degrees. This cycle takes from 30 seconds on a hot day to several minutes on really cold days. I have yet to clean the radiator!
Is this an issue with just the Cummins engine? Or are there folks out there with CAT engines that are having overheating problems? Seems to me that the radiator just isnít big enough for the 400HP Cummins. As I understand it, the same radiator is used with all the engine options.
My only complaint with Freightliner is the plastic surge tank, Iím on the third tank and the last one was installed by Freightliner in Hagerstown, Md. at a cost to me of over $500.00. The new tank was leaking when the technician brought coach around for us to leave! He retightened the small cap but as it turned out, it was still leaking. I drove it off the lot headed for Pa. and the new tank lost a gallon of antifreeze before I got to Scranton. I finally got it sealed but this has got to be the worst design in history for a surge tank. Iím of a mind to make my own tank!
Have Fun!! Mark & Donalda 04 Horizon 40WD no TOW 90,900+ miles and counting
Triumph Bonneville & Susuki S40 on the back