Just had radiator replaced, heater worked fine for a day, now only blows cold air. What could it be?
Dec 30, 2017 at 5:31 AM
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ASEMASTER6371
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52,796 POSTS
Good morning.
Air block in the heater core could be the issue. low coolant could be a possibility.
Also, the heater core could be clogged from debris from the system.
I would return to the shop and have them check there work to see why you do not have heat.