Question about 1999 Jeep Grand Cherokee

1 Answer

Heater wont blow heat but A/C works fine....

Hi I have a 1999 Grand Cherokee Limited 4.7 and my heat went out completely. At first it was jus the passenger side but now it doesnt heat at all. A/C works fine but really dont need it right now. Trouble codes on climate control read 20,46,52, and 56. Is there way to bypass some sort of circuit or would it have to be replaced? Please help im FREEEEEZZZZIINNGGGG!!!

Posted by on

  • sandersj_87 Nov 24, 2008

    I have a problem with my heat not working in a 1998 jeep grand cherokee 4.0L 4WD. The A/C works fine but my heat went out all of a sudden. Any suggestions?

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Champion:

    An expert who has answered 200 questions.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 242 Answers

Go to engine compartment, locate heater control valve. It will have the heater hoses connected to it that pass into the firewall. Unhook actuation plunger on the control valve. This will allow the coolant to flow though the heater core at all times. Now you have heat. If you get too hot, you can control it by the hot/cold settings to adjust the heater door.

Posted on Nov 21, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

How do i replace/install a heater core for a 1999 limited edition jeep cherokee 4.0 liter 6cyclinder


I would make sure the core is the problem. You may have a heater control valve that cuts off flow to the core by vac. or a blend door that cuts off air flow thru the core.
You will need a shop manual to replace the core. The dash and console have to come out, along with discharging the ac.

Dec 18, 2012 | 1999 Jeep Grand Cherokee

1 Answer

2000 Jeep Grand Cherokee, heater wont blow heat!


Check the thermastat or your cooling fan to make sure all is working good. If your engine cant warm up, you will not produce any heat inside the car

Feb 04, 2010 | 2000 Jeep Grand Cherokee

1 Answer

1999 Jeep Grand Cherokee Limited,Dual climate control blows cool air on the driver side and hot on the passenger side. Was told by dealership item is located behind the dashboard and the repair cost is...


hi
check-out heatertreater.com, i had the same problem with my cherokee and bought the heater treater blend door repair kit. it really does work and you can fit it yourself in around half an hour. kit comes with all you need and full instructions..
hope this helps

Dec 29, 2009 | 1999 Jeep Grand Cherokee

1 Answer

I HAVE A 98 JEEP GRAND CHEROKEE MY HEATER BLOWS HOT AIR ON ONE SIDE COLD ON THE OTHER I NEED A DIAGRAM OF MY HEATING SYSTEM TO SEE WHERE MY DOORS ARE LOCATED


hi
the blend doors are located behind the glovebox were you will find the heater box the doors are inside this, to remove the heater box you will have to take out the complete dash. try heatertreater.net they have a diy easy fix solution to replace damaged or broken blend doors, i have fitted a few off these kits all work fine with no problems..
hope this helps

Dec 14, 2009 | 1999 Jeep Grand Cherokee

1 Answer

1999 Jeep Grand Cherokee the heat is not working or blowing?


2 problems?
No blower motor: Blower motor resistor very common or motor itself or heater controls.
No heat: Start simple with check antifreeze level after vehicle has sat for a few hours. If that's OK then it could be thermostat, heater controls, blend doors, water pump, restriction in cooling system

Oct 17, 2009 | 1999 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

2 Answers

Heater not working


Most likely your blower motor went kuput.

Feb 05, 2009 | 2004 Jeep Grand Cherokee

3 Answers

Heater


your blend doors are broken a common problem for the jeeps 1999-2004 e mail me at mrenc@msn.com and i will send you a link to a web site for a repair kit that will cost les than the 1200-1500 a dealer will charge to fix this

Nov 12, 2008 | 2000 Jeep Grand Cherokee

Not finding what you are looking for?
1999 Jeep Grand Cherokee Logo

383 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

60792 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

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

Answer questions

Manuals & User Guides

Loading...