Question about 2002 Jeep Grand Cherokee

1 Answer

2002 jeep grand cherokee heater doesn't blow hot

The heater has began to blow cold. At 1st the passenger side was colder then the driver's. Now both sides are cold. It sounds like the blend doors are bad but thats not it.

I cut into the housing behind the glove box and inspected the blend doors, they are and work fine. I flushed the complete cooling system and everything flows freely even the heater core. Next I put in a new thermostat and thought that was the cure but not so. I don't know what else it could be. Any Ideas?
Randy

Posted by on

  • kd5lzj Feb 01, 2009

    I did it all thermostat, checked blend doors, cooling system flush. The heater core is not bad and new thermostat. I don't know anything else to do.

  • kd5lzj Feb 01, 2009

    ATTENTION EVERYONE WITH HEATER PROBLEMS!!!!!!!!!!!!!!!!!!!!!!



    I have done everything, thermostat, checked blend doors, cooling system flush. The heater core is not bad and new thermostat installed. If you are having heater problems PLEASE TRY THIS BEFORE you do anything else!!!!!!!

    Turn the ignition on and then turn on the heater/ac system. With the heater/ac systen still on turn the ignition off. Next open the fuse box located next to the battery and pull fuse # 15, it is 50 amp fuse. Wait approximately 5 minutes and then reinstall the fuse.

    Turn the ignition on and wait 2 minutes. Now start the engine and let it warm up. This may fix your problem. This is some type of computer reset and it could save you hundreds of dollars. It worked for me. Thanks to Chris A.



×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Expert
  • 39 Answers

If ythe heater core is not bad then I would replace the thermostat, this will stop the warm coolant running up to your engine go to the heater core.

Posted on Feb 01, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 2008 Toyota Corolla and heat on the left side and the right side is cold, what to do?


Heat is blowing on passenger side, but cold air ... - RepairPal

repairpal.com > Questions > Dodge > Ram 1500 > 2002 Dodge Ram 1500
Dec 7, 2009 - When I turn on the heat, the passenger side is receiving warm/hot air but ... blow hot air on the drivers side and it would get cold right away. about a week ago... I have a 2008 Dodge Ram 2500 SLT. ... Regardless of the settings cold air blows from the left vent and on the floor on driver and passenger sides.

Temperature Blend/Recirculation Doors May Fail and ...

repairpal.com > Problems > Jeep > Grand Cherokee
2008 Jeep Grand Cherokee143,000Visitor. I get cold air on driver side and warm air on the passenger side. Upvote (29) ... right side air is always at the coldest. no heat on the right side and air temp will not change, left side works good. .... Models: · Honda Accord; ·; Toyota Camry; ·; Honda Civic; ·; Acura TL; ·; Toyota Corolla ...

Heating and AC Temperature and Air Delivery Mode Do


Jan 16, 2016 | Toyota Cars & Trucks

1 Answer

Heater on 2000 jeep


most likely there is a door in the dash somewhere that controls the flow of the air. the actuator that controls the door for that side might be bad

Jan 14, 2010 | 2000 Jeep Grand Cherokee

1 Answer

Plenty of air but no heat one side of dash use to blow hot air. Now neither side blows hot air. 2000 jeep grand cherokee coolant is fine driver side seat heater doesn"t work air bag light comes on every...


Check to see that the blend door linkage is hooked up. Doubtful it is heater core, as you had heat to one side and not the other. Check coolant control valve linkage, verify it is moving the coolant valve from off to on when you switch temperature from cold to hot. Verify you have coolant flow to the heater core by feeling the heater hoses where they enter the firewall. If all checks out well, then look at hvac controls individually.

Jan 06, 2010 | 2000 Jeep Grand Cherokee

1 Answer

My 2002 grand jeep cherokee is blowing out hot air on passenger side and cold air on driver side can u help also the heated seat on driver side has stopped working is this linked


Thats your blend air door. . .I had the same thing with my 02 Grand Cherokee and I think ALOT of other people have as well. I took it to the dealer and ended up costing right around $800, because they have to pull the dash apart to get to the blend air door.

Dec 19, 2009 | 2002 Jeep Grand Cherokee

1 Answer

Passenger side heater blowing cold, now drivers side the same. Water levels OK no leaks. Jeep Grand Cherokee


Hi, you have a problem with your flaps that control the hot and cold air, there are flaps in the dash and they are made out of plastic and the like to break so you will have to remove the dash and renew those flaps

Nov 08, 2009 | 2000 Jeep Grand Cherokee

1 Answer

Driver side heater blows cold air-passenger side blows hot.


Duct door axle is broken. Dealer will charge $1100 to fix. Go to web site " HeaterTreater.net "
Part will cost around $112. Good luck

Feb 24, 2009 | 2002 Jeep Grand Cherokee

1 Answer

Driver side blows hot air passenger side blows cold


try flushing out the heater radiator core.remove the two pipes and put a hose on the conections and keep reverseing flow.dont forget to top up with pure antifreeze,

Feb 05, 2009 | 1999 Jeep Grand Cherokee

1 Answer

Heater core 2002 jeep grand cher.


I purchased a Blen Door repair kit. for my 2002 Jeep Grand Cherokee after having only cold air blow out of the passenger side for over a year. I found it on EBay. It requires you remove the glove box, cut open the heater box and replace the blend door. I really didn't want to cut that open, however, with the tape that comes with it, I have had no problems with it leaking any air. The dual control no longer works, the temperature is now completely controlled by the drivers side, but to save $1200, I was willing to do this. I have taken the entire thing out before to replace the heater core, didn't want to do it again.

Jan 30, 2009 | 2002 Jeep Grand Cherokee

1 Answer

2001 Grand Cherokee Heat on one side cold air on the other side?


The blend door on the passenger side has broken. Jeep has made a replacement section for the heater box assembly so you don't have to buy the whole thing. You will need to remove the heater/A/C box to replace the part. I have done quite a few of these repairs to fix the problem

Nov 21, 2008 | 2001 Jeep Grand Cherokee

Not finding what you are looking for?
2002 Jeep Grand Cherokee Logo

681 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

70374 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6878 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...