I have a 2013 dodge dart and it keeps on overheating.

5

Asked by Guru9CT2CP Jul 19, 2021 at 03:24 PM about the 2013 Dodge Dart Rallye FWD

Question type: Maintenance & Repair

i have to keep the heat blaring in the car so it wont over heat when i drive it but
when i come to a stop the needle spikes to hot even when the heat is on.. I
have had the car at the mechanic for almost 3 weeks and he has no idea as to
what it could be.

1 Answer

156,105

First thing to do is find another mechanic. I'd suspect a blown head gasket since it's overheating at idle and while driving. The coolant should be tested for exhaust gasses. If exhaust gasses are present in the coolant, the head gasket is definitely blown. Other possibilities are a bad thermostat, and a blockage in front of the radiator. Since you have good heat the coolant is circulating. That rules out the water pump, air in the cooling system, and a blocked cooling system. There's a bypass on the thermostat to allow coolant to circulate just through the heater core when the engine is cold and the thermostat is closed. But if the thermostat is stuck closed you will have plenty of heat but the engine will overheat because the coolant is not circulating through the engine! Hope that helps! Jim

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