Mon–Fri: 8AM–6PM  |  Sat: 8AM–3PM
(818) 500-1939
Heater Core Repair

Heater Core Repair & Replacement in Sun Valley & Glendale, CA

No heat? Foggy windshield? Sweet coolant smell? These are signs of a heater core problem. We diagnose and repair heater cores on all vehicles.

Call (818) 500-1939

Heater Core Repair & Replacement in Sun Valley

The heater core is a small radiator hidden deep inside your dashboard. It uses hot engine coolant to warm the air blown into your cabin. When it fails, you lose heat, your windshield fogs up, and you may smell a sweet coolant odor inside the car. A leaking heater core can also cause coolant loss, leading to overheating.

Heater core replacement is one of the more labor-intensive repairs because it usually requires removing a large portion of the dashboard. At A Plus Auto Shop, Armik has performed this repair on countless vehicles and knows the most efficient approach for each make and model, saving you time and money.

Heater Core Repair at A Plus Auto Shop in Sun Valley, CA

Our Heater Core Repair Services

Comprehensive heater core repair services for all makes and models at A Plus Auto Shop.

Heater Core Replacement

When a heater core leaks or is severely clogged, replacement is the only reliable fix. We carefully remove the dashboard components, replace the core with a quality unit, and reassemble everything to factory specifications.

Heater Core Flush

If your heater core is partially clogged but not leaking, a flush can sometimes restore heat output. We flush the core in both directions to remove sediment and scale buildup. If flushing doesn't restore proper flow, replacement may be needed.

Coolant Leak Diagnosis

A leaking heater core can drip coolant onto the passenger floor or cause a sweet smell inside the car. We pressure-test the cooling system to confirm the heater core is the source of the leak before recommending repair.

Heater Hose Replacement

The hoses connecting the heater core to the engine can crack, soften, or develop leaks over time. Replacing worn heater hoses is a straightforward repair that can prevent coolant loss and potential heater core damage.

Blend Door Actuator Repair

If your heater blows only cold air but the heater core is fine, the blend door actuator may be stuck. This motor controls the mix of hot and cold air. We diagnose and replace faulty blend door actuators to restore temperature control.

Cooling System Inspection

Heater core problems are often related to overall cooling system health. We inspect the thermostat, water pump, radiator, hoses, and coolant condition to ensure your entire cooling and heating system is working properly.

Frequently Asked Questions

Answers to common questions about heater core repair at A Plus Auto Shop.

How do I know if my heater core is bad?

Signs include no heat from the vents, a sweet coolant smell inside the car, fogging on the inside of the windshield (especially the passenger side), wet carpet on the passenger floor, or coolant level dropping without a visible external leak.

How much does heater core replacement cost?

Heater core replacement varies significantly by vehicle because of the labor involved in removing dashboard components. The part itself is relatively inexpensive, but the labor can be substantial. Call (818) 500-1939 for a quote specific to your vehicle.

Can I drive with a bad heater core?

A leaking heater core will cause ongoing coolant loss, which can lead to engine overheating. If the leak is small, you may be able to drive short distances while monitoring coolant levels, but it should be repaired as soon as possible to prevent engine damage.

Why does my car smell like coolant inside?

A sweet, syrupy smell inside the cabin usually indicates a heater core leak. Coolant is dripping or misting inside the HVAC housing. You may also notice a thin film on the inside of your windshield. Have the heater core inspected right away.

Other Services We Offer

A Plus Auto Shop is your full-service auto repair destination in Sun Valley, CA.

No Heat in Your Car?

Walk-ins are always welcome at A Plus Auto Shop. No appointment needed — just stop by or give us a call.