Why is my heater not working?

Asked by Mar 08, 2014 at 10:05 AM about the 1998 Jeep Grand Cherokee

Question type: Maintenance & Repair

I have a 98 Jeep Grand Cherokee and the heater is not working when it is very cold. It produces heat when it is not extremely cold, but otherwise does not get hot.

3 Answers

95

Did you try flushing the heater core out yet? Could be partly plugged. It can plug and your temp gauge won't show any difference.

165

I had to replace the heater core on my 98 5.9 limited a few years back and no issues since. We get some decent cold spells in Colorado.

1 of 1 people found this helpful.
95

I am trying to compare my 98 with the inline 6cyl 4.0L to yours. So I don't know if the control valve is inside under the dash like mine or not. The reason I suggested about flushing is it not only would check the heater core but also the valve and the hoses. Which I have had one where the inside wall separated and collapse shutting down the flow. Just a thought.

3 of 3 people found this helpful.

Your Answer

Add photo

Related Questions

  • Why is my heater not working? 3 answers

    I have a 98 Jeep Grand Cherokee and the heater is not working when it is very cold. It produces heat when it is not extremely cold, but otherwise does not get hot.

    1998 Jeep Grand Cherokee

    -

    Maintenance & Repair

  • heater fan not working. Is there a fuse? Any ideas? 20 answers

    The heater is not working nor the cigar lighter, are these connected to the same fuse? Could it be the fan switch?

    1996 Jeep Grand Cherokee Limited 4WD

    -

    Maintenance & Repair

  • Heater fan and blinkers not working 3 answers

    Just got jeep back from shop having a neutral switch replaced. Now the heater fan nor the blinkers are working. Could he have knocked something loose, or is there a fuse that runs both?

    2002 Jeep Grand Cherokee Laredo 4WD

    -

    Maintenance & Repair

  • why would my radio in my 94 jeep grand cherokee stop working? 1 answer

    i changed out the speakers in my jeep and the radio worked fine but then a week later the radio just stopped working inline fuse isnt blown and fuse in fuse box isnt either. not sure what it is. hel...

    1994 Jeep Grand Cherokee Limited 4WD

    -

    Maintenance & Repair

  • Why is my Jeep overheating 1 answer

    For the past two weeks my radiator has been moving towards hot. Yesterday, I went about 15-20 miles and then my car went hot and started steaming out with smoke. I stopped at a local Wal-Mart and purc...

    2004 Jeep Grand Cherokee Laredo 4WD

    -

    Maintenance & Repair

Grand Cherokee

Looking for a Used Grand Cherokee in your area?

CarGurus has 73,573 nationwide Grand Cherokee listings starting at $1,200.

ZIP:

Search Jeep Grand Cherokee Questions

Jeep Grand Cherokee Experts

#1 inuevafreak
inuevafreak
Reputation 2,090
#2 Tom Demyan
Tom Demyan
Reputation 1,890
#3 thejeepdoctor
thejeepdoctor
Reputation 1,750
View All

Related Models For Sale

Used Jeep Cherokee
397 Great Deals out of 40,744 listings starting at $1,500
Used Ford Explorer
921 Great Deals out of 65,068 listings starting at $799
Used Jeep Wrangler
271 Great Deals out of 15,925 listings starting at $2,695
Used Toyota 4Runner
240 Great Deals out of 19,388 listings starting at $1,500
Used Dodge Durango
281 Great Deals out of 21,251 listings starting at $1,375
Used Chevrolet Tahoe
586 Great Deals out of 33,115 listings starting at $1,500
Used Ford F-150
2,188 Great Deals out of 194,799 listings starting at $290
Used Chevrolet Silverado 1500
1,971 Great Deals out of 183,482 listings starting at $1,495
Used Chevrolet Camaro
355 Great Deals out of 31,423 listings starting at $2,500

Used Cars For Sale

2018 Jeep Grand Cherokee For Sale
107 listings starting at $38,480
2017 Jeep Grand Cherokee For Sale
85 Great Deals out of 45,135 listings starting at $21,518
2016 Jeep Grand Cherokee For Sale
145 Great Deals out of 2,923 listings starting at $18,900
2015 Jeep Grand Cherokee For Sale
178 Great Deals out of 4,775 listings starting at $18,500
2014 Jeep Grand Cherokee For Sale
243 Great Deals out of 6,705 listings starting at $13,588

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.