Question about 1999 Jeep Grand Cherokee

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MY HEATER IN THE JEEP IS ONLY HALF WORKING THE

MY HEATER IN MY 1999 JEEP GRAND CHAROKEE LIMITED IS ONLY HALF WORKING THE PASSENGER SIDE IS BLOWING COLD AIR WELL THE DRIVERS SIDE IS BLOWING HOT AIR WHAT COULD THIS PROBLEM BE?

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6ya6ya
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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Heater blows cold air when idle

Sounds like you may have a partially plugged heater core. You could flush this out separately, from flushing radiator & engine block. Diconnect heater hoses going to your heater core and clamp off, so not to loose coolant from engine. Now hook up separate hose to one side of heater core pipe and flush out with typical garden hose. Repeat procedure on both heater core inlets. Reconnect original heater hoses and test difference. You may have to add an additional litre of antifreeze. If this don't work i suggest changing heater core. Good luck.........Ron.

Posted on Jan 03, 2009

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MrScary66613
  • 1990 Answers

SOURCE: 1999 Jeep Grand Cherokee Heat not working

Change your Thermostat.

Posted on Jan 17, 2009

alicantecoli
  • 22156 Answers

SOURCE: 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,

Posted on Feb 05, 2009

keeperoffire
  • 106 Answers

SOURCE: 01 jeep grand cherokee heater works on driver side

You have 2 posibilities.there are 2 motors on the heater box that run the blend doors for each side.That side motor may be bad or worst case the blend door arm that connects to the motor is broken.If it is broken the whole dash has to be removed so the heater box can be taken out to replace the blend doors.Big job,do a heater core while your there if you fix it so you dont have to do it again.

Posted on Mar 09, 2009

jmgldsmth
  • 1869 Answers

SOURCE: 2001 jeep heater on passenger side not working

there should be a small valve attached to a hose coming from the engine into the firewall this valve directs the hot engine coolant into the heater radiator in the heater box it probably is closed open it and, you should have heat then: it should be easy to find the reason it was closed

Posted on Apr 30, 2009

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1 Answer

I have a 1999 jeep grand cherokee limited 8 cyl motor and the a/c for the passenger side is blowing out hot air how do i fix the problem?


The dash has to be removed to access the blend doors on the passenger side of the heater box.. it is not a fun job . Chrysler knows it's a problem but have not done anything about it.

Jul 28, 2010 | 1999 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

Heat on drivers side cold on passenger


there is not enough freon in the system or doors problems,check heater funtion to see if it heat all windows,if it work it need to be check with AC gauges or machine for it.

Nov 23, 2009 | 1999 Jeep Cherokee

1 Answer

2006 Jeep Grand Cherokee Laredo ac not cooling


My 1999 limited does this. When i bought it off the guy he said that its because of some flap down by the passengers left foot. In mine the passenger air barely even blows because of this.

Jun 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

1 Answer

Heater fan problem


its on the passenger side firewall under the hood you cant miss it its the only thing with a otor there...

Jan 21, 2009 | 1995 Jeep Grand Cherokee

1 Answer

Heater not working / climate control not working


I KNOW ITS INCONVENIENT TO SAY THE LEAST & YOU PROBABLY SHELLED OUT A FEW BUCK FOR IT TOO.CALL THEM RIGHT BACK.DONT LET ANYONE ELSE TOUCH IT.

Dec 13, 2008 | 2003 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

1 Answer

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


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.

Nov 21, 2008 | 1999 Jeep Grand Cherokee

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