Cabriolet L4-1781cc 1.8L SOHC (JH) (1989)
Heater Core: Testing and Inspection
Without A/C
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Coolant leaking visibly into the passenger compartment is a sign of a faulty core or heater hose. A sweet, anti-freeze odor in the car's interior, or a
constantly fogged windshield may also indicate a faulty core.
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Inspect the carpet and the area near the floor vents for any signs of moisture or coolant. A leaking heater core may be caused by overpressurization
of the cooling system.