Engine cooling thermostat in Cat 350
Just had my annual maintenance done on my MH. I realized, after the weather turned cold that I probably need a new thermostat. The temp gage doesn't get off the peg and the heater is ineffective. I do...
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You just have to drain enough coolant to bring it down below the thermostat area as Brett said above. Most Diesel RV engines have two thermostats. Just be sure that you get the proper ones.
