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Jeep Cherokee Repair Question


Topics covered: Coolant, Heater, Heater core.
Mileage: No information provided.

Asked on March 9, 2007

Climate Control System - Heating

1998 Grand Jeep Cherokee - 125,000 miles - 4.0 (I think).

I no longer have heat in my Jeep. The Climate Control system seems to be working correctly. The Fan is working correctly.

Can you tell me why I don't have heat anymore ? Is it an easy fix ? I'd like to fix this problem myself if possible - I'm female and I love fixing things plus it's alot cheaper if I can fix it.

Luckly it is not extremely cold right now but I do have an infant that rides in the car every morning.

Thank You for any help you can give me.
Mesha - North Carolina
Avatar Asked by kendkoll

Answer

Replied on March 9, 2007

what does the temperture guage read? if it reads normal being it gets off of cold then i would say it is in the heater core. try back flushing the heater core.

remove the hoses going to the heater core and flush water through the lines back and forth until you can the water run through the core. if the guage does not show that the jeep is warming up then i would check the thermastat. let me know what you find out

Tiny Answered by M_H_RITZEL (expert)
2,685 answers provided
Replied on March 9, 2007

The Thermastat Control is digital for the Climate Control System and I normally put it on high in the mornings (it goes from 85 to high) to get it going then I turn it down to 70 or so.

On High the air is not getting hot it is cool air that is coming out - it never warms up.

Can you send me a link to where I can find out more about Heating Core

Thanks,
Mesha

Tiny Response from kendkoll
1 question asked
Replied on March 9, 2007

in the dash do you have a temperature guage that shows how hot the engine is? if so what does it read when the vehicle has been running a while?..

Tiny Answered by M_H_RITZEL (expert)
2,685 answers provided

Replied on March 14, 2007

It reads 210 when hot

We replaced the thermostat this past weekend and the coolant sensor where the thermostat is located (I had gotten an message on my console computer "Coolant Sensor Bad" before the heat went out)

Still no heat and I got the message again "Coolant Sensor Bad" on Tuesday 3-13-07

Tiny Response from kendkoll
1 question asked