Heater core

Asked by trane98 Mar 13, 2019 at 11:09 AM about the 2011 Dodge Avenger Express FWD

Question type: Maintenance & Repair

What causes a heater core to go bad

1 Answer
21,895

Gary answered 5 years ago

Normally, this is caused by not flushing the cooling system properly. After years of service, dirt and debris build up in the cooling system and can clog the heater core. Or rust can develop and cause a leak in the core.

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