Rick's Free Auto Repair Advice

Posts Tagged: failing heater core

Symptoms of failing heater core

How to diagnose a failing heater core A failing heater core can leak engine coolant into the passenger compartment or fail to heat the cabin. The heater core in your car or truck receives hot coolant from the engine. The coolant flows through small tubes while the car’s blower motor passes cabin air across the heater core tubes and fins to warm the cabin air. What causes a failing heater core? See this post Failing heater core failure symptom #1 No heat Clogged passages in the heater core reduce its … Read More

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