I have a 98 Cherokee. Temp runs normal but heater will not blow hot air. Any ideas?


Asked by Nov 18, 2014 at 05:07 PM about the 1998 Jeep Cherokee 4 Dr Classic 4WD

Question type: Maintenance & Repair

No work was performed prior to no hot air. Just one day heater would only blow cold air.

7 Answers


check your coolant levels, also the diverter flap may be stuck, under the dash passenger side, its a vacum opperated unit, or heater core may be pluged

5 of 5 people found this helpful.

I now think the heater core is pluged. Do you know which hose on this jeep is the supply for the heater core, long or short hose? Checked under the dash night befor last, alls good there. Coolant and thermostat also good.

4 of 4 people found this helpful.

There should be two smaller diamater hoses. A supply and a return . With the vehicle at tempiture they should both be very warm to the toutch

2 of 2 people found this helpful.

How would you flush the core?

12 of 12 people found this helpful.

They make a garden hose adaptor you can get at your local auto parts store.

2 of 2 people found this helpful.

It'll be next week befor I can work on it again.


The core was stopped up. Simple and easy 15 min. Fix. No cost just a few min. Work.

3 of 3 people found this helpful.

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