Just wanted to see if anyone had any other ideas. I am going to back flush my Cherokee this weekend. My heat is blowing cold air out and the t-stat, radiator and radiator hoses where replaced about a year ago. The heater hose are not getting hot. Does anyone have any other ideas then a back flush of heater core?

 

Just try to make sure that you don't use too much pressure, you might break something.

 

I finally got around to flushing the heater core or at least trying. My issue and I can not find it anywhere else is that the water wont run through and out the other hose. What am i doing wrong or what could the issue be?

 

Plugged solid, stick a fork in it.

 

What is my next step?

 

I think i am going to try CLR to try to unplug my heater core. Has this worked for anyone?