A low coolant level (caused by a leaking heater core) can lead to overheating and possible engine damage. Even a clogged heater core has the potential to obstruct coolant flow enough to cause overheating. A low coolant level (caused by a leaking heater core) can lead to overheating and possible engine damage.
What happens if the heater core is leaking coolant?
As the heater core uses engine coolant to generate heat, a leaking heater core will reduce the amount of coolant in the cooling system. Low coolant will cause an engine to run at a higher temperature, which can result in extensive engine damage. Can a Bad Heater Core Cause Overheating?
How do I know if my heater core is bad?
If you find that when you turn the heat on even after the engine has been running for a while and nothing is happening, then that's a good sign your heater core has failed. This can be the result of any number of potential problems from a leak in your coolant system to a buildup of sediment that gets clogged in the heater core.
Can a bad heater core cause an engine to overheat?
If not tended to it can cause engine overheating, coolant hose cracking, or else. This is one of the bad heater core symptoms that is recognizable by a mild engine overheating as well as constant high pressure in the coolant bottle.
What happens when the heater core is clogged up?
When the heater core clogs up, it causes an increase of coolant pressure inside the system. If not tended to it can cause engine overheating, coolant hose cracking, or else.
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