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HEATER CORE INSPECTION

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1. Remove the A/C unit. (See 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.