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98 ram 1500 5.9 4x4. I have no heat. Never had heat since I owned the truck for 2 years. The gauge runs about 150°, but I've put 2 thermostats in it and nothing changed. Any ideas? It's freezing.
Clogged Heater core or broken blend doors. (That is of course considering the coolant level has been checked and is good, which I assume since you have changed the thermostat).
Could also be a heater valve problem, but unlikely.
Well I didn't think it was a blend door issue because the motor is running colder as well. Maybe if the motor was normal temp and still no heat, then yea maybe blend door. You think a clogged heater core would cause the engine to run cooler as well?
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