MX-5 Miata Mazdaspeed L4-1.8L DOHC Turbo (2004)
Heater Core: Testing and Inspection
HEATER CORE INSPECTION
1. Inspect for cracks, damage, and coolant leakage.
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If any are found, replace the heater core.
2. inspect for bent tins.
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If any are bent, use a flathead screwdriver to straighten them.
3. Verify that the heater core inlet and outlet are not distorted or damaged. Repair with pliers if necessary.
