Why is my Jeep Cherokee heater blowing cold air?

Your Jeep heater is blowing cold air and you’re not sure why. Two possibilities exist. One is a stuck thermostat. If you take the Jeep to a mechanic, expect to spend between four to five hundred dollars to get the heater core replaced.

Why is my heater not working anymore?

Often, the issue is that the heating system is simply dirty. If your furnace has a dirty blower, the blower could cause equipment failure. In short, a dirty blower can cause the heat exchanger to fail. Dirty air filters could also be the reason your heater stopped working.

What happens when your Jeep Grand Cherokee heater stops working?

At this point, the blower motor blows air across the it and the newly heated air blows on to the driver and passengers. If the heater has stopped working in your Grand Cherokee, this process has failed in one way or another.

Is the Jeep Sport heater hot or cold?

The heater in my 1999 Jeep Cherokee sport does not get hot. The fan works, but it seems the control switch from hot to cool is not funtioning. Air is at best slightly warm (outside above 45 deg) to cold (below 30 deg). Need to know how the flap in the box works, (electrical or vac.)

Why does my Jeep heater blow outside air?

Driver works fine, but passenger side (defrost, personal, and floor vents) all blow outside air even when you turn the control up to Hi. Change the control from hi to low and back with no change. helpful? I had the same problem I had heat only on one side and then no heat on one side.

Why is the defrost setting on my Jeep heater?

The reason why the defrost setting is the only one that is working is because that is the default setting when their is a vaccum problem. Check your vaccum lines under your battery a lot of people have reported by fixing that line has solved this problem.