vwExplorerOct 20, 2018radiatorhi I have a 2006 Winnebago journey C-7 cat. 50000 miles I have no over heating problem but should I just drain the radiator and refill with new coolant.? rudi
wolfe10ExplorerOct 20, 2018At a minimum, along with a coolant flush and new coolant, replace the thermostat(s). Caterpillar calls them regulators.Be sure to check/change your V belt that drives the water pump-- it is NOT on an automatic tensioner.
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