All ActivityMost RecentMost LikesSolutionsRe: Diesel pusher overheatingThanks for all of the advice. Waiting for a good warm day to take the MH out on some hills and see what it does. Will post results when I get done. Thanks again.Re: Diesel pusher overheatingYes on the rear radiator. Did clean the rad and CAC from the front to the back but water looked pretty clean. Spoke with the previous owner who bought the coach new and he had intermittent heating issues even when new. He tried rigging up some dryer duct with a wall mount dryer vent to bring air in to the engine compartment. I removed this setup as it seemed to me pulling hot air from the roadway was counter productive to cooling. I am hoping to open a dialogue on the positive vs negative effects of a good high flow electric fan mounted on the rear/away from the engine side of the radiator. Would this increase the available air flow available to the radiator and engine mounted fan ? Or would the electric fan impede available flow by blocking part of the radiator. Any thoughts are appreciated.Diesel pusher overheatingNew owner of 1993 Cobra Riviera 35' diesel pusher with the 230hp Cummins . Only 37,000 miles on coach with a good maintenance history. Driving home from Las Vegas to Moab had temps rise as high as 230 with the heat warning light coming on once. Slowed down and geared down each time as well as ran the heater which got me back to around 210. These all happened while climbing with ambient temps at 100 plus. Got home and read all of the info re pushers and overheating. Cleaned the outside of the radiator with Dawn and a hose but did not seem to be to dirty. Also cleaned radiator with commercial Permatex cleaner and flushed well. Again radiator interior seemed pretty clean. New coolant after done. Waiting for the temps to rise again before trying to duplicate problem. My question is has anyone added an auxiliary puller electric fan to help with pusher heating issues ? Haven't seen any mention of it anywhere but seems like it should work if run in conjunction with a thermostat and only cycles on when climbing/ heating. One question I have is would this fan restrict the engine fan from pulling air through the radiator ? Hopefully new coolant and a clean radiator will solve my problem but if not want some alternatives. Thanks for any help.