Heater Core: Testing and Inspection

HEATER CORE INSPECTION

1. Remove the A/C unit. A/C Unit Removal/Installation

2. Remove the heater core from the A/C unit.

3. Inspect for cracks, damage, and coolant leakage.

- If any problems are found, replace the heater core.

4. Inspect for bent fins.

- If any are bent, use a flathead screwdriver to straighten them.

5. Verify that the heater core inlet and outlet pipe are not distorted or damaged.

- Repair with pliers if necessary.