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2011 Patriot Heater Blowing Cold Air

2.8K views 1 reply 2 participants last post by  Sandstone  
#1 ·
I have a 2011 2.4cyl 4wd Patriot. Long story short the heater doesn't blow hot air. Have replaced both thermostats. The temp gauge in the cab shows a bit over 1/4 at its peak. Fluid levels are all good.
 
#2 ·
Hi, welcome!

I'd check is make sure both lines to the heater core are hot, if they aren't the core may be blocked and needs to be flushed/replaced.

Some have had problems with the blend door not working. There's also a possibility that the heater lines may have air bubbles.

Here's a couple of threads that may help:

http://www.jeeppatriot.com/forum/5-.../forum/5-jeep-patriot-general-discussion/194210-heater-problem-please-help.html

http://www.jeeppatriot.com/forum/5-jeep-patriot-general-discussion/292386-heater-issues-2.html