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Probably not unless so much coolant has leaked into your passenger compartment the engine doesn't have enough left to keep it cool. If that where the case you would definitely know. First thing to check is the simplest thing and that is your thermostat.

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Q: Would a car run hot with a bad heater core?
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Related questions

Would bad heater core cause car to sputter?

No


Does a bad heater core leak if the car is not running?

yes.


Can you drive a car home when the heater core is out?

you would have to bypass the heater core first.


What would cause my Lincoln 2001 heater not put heat in the car?

low coolant? Bad thermostat? Climate control not sensing proper temperature? Heater core plugged or restricted? Heater core airbound?


Car smells like gas when heat is on?

There are several things that could be going on. The most common thing that would make your car smell like gas when the heater is on would be a bad heater core.


Will a bad heater core cause the car not to start?

No it wont. The heater core is just a small radiator inside the cabin that when the fan is turned on heats the air. A bad heater core will cause you to have no heat inside or will leak coolant on the carpet.


Why is your car floor wet inside on passenger side?

You probibly have a bad heater core.


What if you have antifreeze but car still produces no heat?

Bad or clogged heater core. Backflush it.


Why does the car heater not heat on a 1990 Toyota corolla?

try changing out the heater core or the therma stat may be bad


What would cause water standing inside the car front and back on the floor on a 1999 Lincoln Town Car?

Bad window or door seal? Bad heater core? Plugged evaporator drain? Came home drunk last night and parked it in the living room aquarium? heater core went out


Why is your car defrosting on the inside and coolant leaking on the passenger side?

the heater core, heater core hoses or heater control valve is leaking


What are the symptoms of a bad heater core?

coolant leak inside car underdash on pass. side