I have very low heat from my 2001 Grand Cherokee.

Neita Elliott

Asked by Dec 30, 2014 at 09:39 PM about the 2001 Jeep Grand Cherokee Limited 4WD

Question type: Maintenance & Repair

There is heat but its doesnt get hot. Anything under 18 degrees, we freeze! Otherwise its
ok, not hot though. I have replaced the blend doors with aftermaket product, which has
failed. I disconnected the motor and taped the doors open for heat. Had mechanic check
fluids and its all good. It does not over heat and heats up to temp. I had someone
suggest it might be one of the vent door not opening properly. What would cause this?

8 Answers

vacuum leak. prolly same vacuum that goes.to.cruise control

1 out of 1 people think this is helpful.

I've got the same problem with my 02, I have checked all of the mode and blend doors and they all work, what has helped is turning on the recirc door after the engine is fully warmed up, if it starts to fog up inside I switch it to defrost, the A/C light turns on the windows defog, then I switch it back to recirc. From what I can see the heater core looks a little too small for the rig. I was toying with putting in an aux heater in the cargo area but decided not to as those really cold days are few and far between out here, so I got one of those little 12 volt heaters off of EBay And it seems to do what I need.

maybe its got the wrong thermostat...or no thermostat. i.suggest checking vacuum, thermostat, and flush the hell out of it. also very important-get the air out of cooling system! either burp it the ole fashioned way or use a bleeder valve.if it jas one.


Have you ran a system check on the HVAC system? You will have the typical blend doors codes, but if you get more than those it is possible the fresh air intake door is stuck full open so your pulling 100% outside air. Might be worth a look, if you have modded the heater then you know where the servo is and you can see it function when you turn on and off the recirc button. I think you can rule out the thermostat and air in the system, as these rigs have the backwards cooling system and any air or thermostat problems are noticed very quickly. Hope this helped.

1 out of 1 people think this is helpful.
Tinn Mulliqi

Hello i have a jeep grand cherokee wj I checked the blend doors, I have clean the heater radiator but my jeep does not heat inside the cabin the radiator is very hot. Anyone can help me?


So if the engin is at operational temp, and the heater core has good flow both in and out but you still don't have any heat inside then the only thing it can be is the blend door that changes from Heat to A/C, do a search on You Tube and watch those that show up, I did the kit on my Grand Cherokee that did away with the dual controls so I could just use the drivers side as the main control?

1 out of 1 people think this is helpful.
Tinn Mulliqi

Can y send me the link of this video plz


https://www.youtube.com/watch?v=kIWnuZ8vkEE There are a lot more there also.

Your Answer

Add photo

Related Questions

  • 2001 Jeep Grand Cherokee 17 answers

    I have a 2001 Jeep Grand Cherokee the check engine light came on as misfire cylinder 3 I fixed that replaced the coil pack and spark plugs the the check engine came on for 02 sensors I fixed those a...

    2001 Jeep Grand Cherokee Laredo 4WD


    Maintenance & Repair

  • how do i reprogram my 2001 jeep Grand cherokee seats 5 answers

    well i just bought this 2001 jeep grand cherokee limited and i see that everytime i unlock the car the seat goes to a personal set postion. and im short so i have to move it evertime. i dont wanna hav...

    2001 Jeep Grand Cherokee Limited 4WD


    Maintenance & Repair

  • I have a 2001Jeep Grand Cherokee Laredo 1 answer

    I have a 2001 Jeep Grand Cherokee Laredo. I am having starting issues. My car starts great and then I drive (even short distances) shut it off and it won't restart for about 2 hours later. When I...

    2013 Jeep Grand Cherokee Laredo 4WD


    Maintenance & Repair

  • My 2001 Jeep Grand Cherokee LTD, climate control fan works, heat works, but won't change modes, to floor, defrost, vent, etc 3 answers

    Climate control won't change modes, from floor heat, to vent, to A/C. Heat & A/C work, can hear fan go on from low through high, but nothing blows out the floor, vent, defrost vents. Any idea's what...

    2001 Jeep Grand Cherokee Limited 4WD


    Maintenance & Repair

  • Looking for Used Jeep Grand Cherokee....... 3 answers

    Im looking for a 2000-2004 used Jeep Grand Cherokee. I would like to spend less then $10,000. Some options it needs to have are leater, tow package, roof rack, cd player, etc. If anyone has any ideas ...

    Jeep Grand Cherokee


    Shopping & Pricing

Grand Cherokee

Looking for a Used Grand Cherokee in your area?

CarGurus has 73,903 nationwide Grand Cherokee listings starting at $1,200.


Search Jeep Grand Cherokee Questions

Jeep Grand Cherokee Experts

#1 inuevafreak
Reputation 1,770
#2 Tom Demyan
Tom Demyan
Reputation 1,600
#3 thejeepdoctor
Reputation 1,470
View All

Related Models For Sale

Used Jeep Cherokee"
373 Great Deals out of 53,014 listings starting at $2,495
Used Jeep Wrangler"
428 Great Deals out of 16,258 listings starting at $2,395
Used Ford Explorer"
1,336 Great Deals out of 71,184 listings starting at $985
Used Toyota 4Runner"
380 Great Deals out of 18,520 listings starting at $2,400
Used Dodge Durango"
383 Great Deals out of 22,493 listings starting at $995
Used Chevrolet Tahoe"
1,042 Great Deals out of 36,533 listings starting at $1,695
Used Ford F-150"
3,174 Great Deals out of 215,800 listings starting at $1,000
Used Jeep Liberty"
379 Great Deals out of 9,290 listings starting at $998
Used Chevrolet Silverado 1500"
2,379 Great Deals out of 143,345 listings starting at $1,195
Used BMW X5"
552 Great Deals out of 15,368 listings starting at $599
Used Acura MDX"
491 Great Deals out of 15,311 listings starting at $1,999
Used Toyota Highlander"
627 Great Deals out of 30,395 listings starting at $1,990

Used Cars For Sale

2017 Jeep Grand Cherokee Limited 4WD For Sale
7,844 listings starting at $33,640
2016 Jeep Grand Cherokee Limited 4WD For Sale
3 Great Deals out of 5,001 listings starting at $29,995
2015 Jeep Grand Cherokee Limited 4WD For Sale
82 Great Deals out of 2,178 listings starting at $25,379
2014 Jeep Grand Cherokee Limited 4WD For Sale
124 Great Deals out of 2,868 listings starting at $18,980
2013 Jeep Grand Cherokee Limited 4WD For Sale
10 Great Deals out of 253 listings starting at $17,390