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When a head gasket blows, it most often causes a lose of coolant either in the exhaust or the oil. When the coolant drops, there is not enough to circulate through the heater core. The engine may over heat but no heat will come out of the heater because there is no coolant in it.

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Q: Does a blown head gasket affect the heater from getting hot?
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Related questions

Can improper installation of a heater core cause a blown head gasket?

No


What is wrong when a 1995 cutlass and recently it started to have high temp and water in the oil heater not getting warm what could be wrong and is it too much to fix?

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How do you know if 2001 Ford Taurus has blown head gasket?

A blown head gasket can have many different symptoms. Some of the primary ones are: • Engine overheating • Smoke coming out of the tailpipe. The color will depend on where on the head gasket that the damage is located. White smoke usually means coolant is getting into one or more of the engine's combustion chambers; dark smoke usually means oil is getting into one or more of the combustion chambers. • Heater not working, because coolant flow and pressure through the engine is compromised by the blown head gasket, preventing enough hot coolant from flowing through the heater core.


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Does the heater have anything to do with a blown head gasket on a 1998 Oldsmobile Silhouette?

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Is it possible for a mechanic to tell if the head gasket is blown by simply smelling the engine?

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Do you have blown head gasket if your car wont crank and you are getting gas mixing in with your oil?

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