Changed water pump and t stat also flushed radiator heater core changed but heat won't go up past 150 and when I accelerate on highway cold air and temp drops what could be wrong?

Asked by Jan 23, 2013 at 10:19 AM about the 1998 Dodge Ram 1500

Question type: Maintenance & Repair

1 Answer

Thermostat. It has been known to happen a new one being bad. Some of them are mass produced in Taiwan or Outer Mongolia, not tested before they are shipped.

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