At My Witts End
I am reaching out to all you RV Veterans because my RV keeps overheating. I have a 2008 Fleetwood Discovery 39R with only 20k miles. The RV is currently at Freighliner. This is the second time sinc...
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Its a very well known fact that the rear radiator on a Cummin's engine will plug up. Mind did at 30,000 miles. This is not all that hard to see if you can do your own PM on it. Find a car wash that the rear of the MH will fit into. Saturate the radiator with Simple Green. Use the power wash to flush the gook out of the radiator. Make sure you keep the spray directed directly into the fins and don't bend them. If you can, get under and spray the engine side of the radiator also but don't get close to the fins with the nozzle so you don't bend them. Then make sure the slobber tube has a hose connected to it and routed down and under the radiator.
