Mechanics

HEATER CORE HOSES

1993 Mazda Miata • 123,000 miles

Heater core was replaced, hoses that connect heater core were fabricated after install. I think it sounds like water sloushing and I detect a faint odor of anti-freeze. Would hoses make a difference? Or could replacement core be defective.
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Rick Clark
October 31, 2011.



You may still have some coolant on the new core. Make sure the hoses aren't kinked. The noise you hear leads me to believe there is air trapped in the system or the coolant level isn't full. Make sure to bleed the system fully.