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Q: Will a clogged heater core cause engine to overheat?
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What causes overheating in a Toyota?

A bad water pump or thermostat can cause an engine to overheat. A plugged (clogged) radiator or heater core may also cause an engine to overheat.


Will a leaking heater core cause your car to overheat?

A leaking heater core will cause the engine to overheat because the coolant is leaking out.


If Heater core is bad on a 1984 Mazda GLC will car overheat?

Not necessarily. It depends on what you mean by a bad heater core. The core will either be leaking or stopped up. If it is leaking, then it can cause the engine to overheat and the only fix is to replace it. A clogged or plugged heater core can sometimes be fixed by flushing it. You can also temporarily bypass the heater core until you can get it fixed. Just connect the inlet & outlet heater hoses together.


What damage would be caused by not fixing the catalytic converter?

If the converter is partially clogged it can cause the engine to overheat which can cause serious problems. Other than that if will not harm the engine.


Chrysler Concorde engine why overheat cause?

Could be several things, is there coolant in the overflow tank? **Don't open cap when hot** does your heat work? your heater core might be clogged? do your fans turn on to cool the engine? Do you have oil? & what does it smell like ? burnt ? or just like old oil I had this problem on a 98 Jeep, it was a clogged heater core, & rusty coolant .... Matt


What will cause a Hyundai Elantra to overheat?

It could be the radiator is clogged. The thermostat could be bad (prevents the coolant from circulating from radiator to engine block)


What do you do to stop the engine over heating on your range rover when towing?

have your radiator cleaned and replace your thermostate, clogged radiators and sticky thermostats can cause your engine to overheat under load.


What happens when your fuel filter goes?

The fuel filter will get clogged and the engine will either run poorly or not at all. This can also cause the fuel pump to overheat and self destruct. Replace the fuel filter if you suspect it is clogged.


Can a non functioning heater fan cause the engine to overheat on a 1993 Honda Prelude?

not likely as the heater fan only controls the air in the cabin, maybe the radiator fan has gone out too?


If the heater core is not replaced can it cause damage?

If your heater core is LEAKING engine coolant so that your engine coolant level drops too low or the engine coolant is lost completely and causes your engine to overheat then your engine can be damaged beside the mess the leaking coolant makes inside your vehicle ( you might be able to just temporarily bypass the heater core so that no engine coolant is flowing through the heater core )


What would happen if fuel filter would fail on 2007 Chevy impala 3.5 v6 engine?

If the fuel filter is clogged, it will act like it is running out of fuel. It can also cause the fuel pump to fail. The clogged filter will overheat the pump and destroy it.


What would cause a 1991 Honda Accord LX to overheat while only blowing out cold air from the heater?

Hose going from engine to heater core may have burst. Check all your coolant hoses for leaks.