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Home >> Mazda >> 2004 >> MPV ES >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System >> Basic System >> Front Heater Core Inspection.

Front Heater Core Inspection.

  1. Inspect for cracks, damage, and coolant leakage.
    • If any problems are found, replace the front heater core.
  2. Inspect for bent fins.
    • If any bent, use a flathead screwdriver to straighten them.
  3. Verify that the front heater core inlet and outlet are not distorted or damaged.
    • If they are distorted or damaged, repair them using pliers.
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