Heater only makes hot air for a little while

Khart

New Member
Joined
Feb 2, 2021
Messages
1
Location
Logan, Ohio
I have a 2009 wrangler. My heater makes hot air for about a min., then cools off. If I turn the blower off, the heat builds back up, then cools again. Anyone have any ideas what causes that and any solutions?
 
Have you done anything to your coolant recently like a radiator flush? Could be an air pocket. Hopefully it is not a bad heater core.