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How do you determine what the problem is when the heater for a 1999 Dodge Dakota won't heat up but stays barely warm?
Wiki User
∙ 8y ago
Also, check to make sure your anti-freeze/water mixture is correct.
I'd guess it would be either your thermostat, or heater core. The thermostat is the much cheaper option, but I'd almost bet it's the heater core.
Not sure about your specific year of truck, but mine was a b**ch to do!!
If water pump needs to be, or has been, replaced you might try flushing the heater core backwards. Found my core had ingested all of the metal pieces from a water pump that had self destructed. Once flushed, the heater output returned to the expected level.
Wiki User
∙ 8y ago
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You put a for sale sign on it!
