Question about 2000 Jeep Grand Cherokee

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2003 Jeep Cherokee Overland---Blower works for both AC and heater...however, heat is now blowing cold air. Is this the blend door or possibly some other part?

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Possibly some other part affecting the blend door if you feel ac air or no heat

Posted on Oct 14, 2010

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Posted on Jan 02, 2017

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1 Answer

2005 jeep wrangler blows warm air not cold


Well this is different since most questions now are about no heat.
If one ac line is cold and the other is warm, I would suspect a blend door under the dash is not working. The blend doors direct air thru the heater core and the vents.

Dec 11, 2012 | 2003 Jeep Wrangler

1 Answer

2003 jeep grand cherokee heater problem


Jeep Grand Cherokee is notorious for broken blend-air doors. This is the door inside the A/C-heater housing that switches the air from hot to cold. You must remove the dash to repair it.

Nov 13, 2011 | 2003 Jeep Grand Cherokee

1 Answer

2004 grand cherokee overland model heater and air conditioner temperature not working correct has the split controls for driver and passenger temp control, one side will blow cold the other hot, and it is...


this model has a couple of possibilities, updated heater control panel which is quite an expensive guess also the blend doors located in the heater casing break also an expensive repair as dash needs to be removed t gain access, would advise dealer visit first to confirm correct fault.

May 02, 2010 | 2004 Jeep Grand Cherokee

1 Answer

No hot air control


Probably broken blend doors if everything else is working, but its just blowing cold air. Do a google search for "Jeep Blend Doors" or "Heater treater" for more info.

Jan 07, 2010 | 1996 Jeep Grand Cherokee

1 Answer

I have a 2003 Jeep Grand Cherokee Overland with automatic climate control. The drivers side blows cold air constantly. It has no heat.


sounds like the blend door motro may be bad, this motor is screwed to heater box, there are a few of these motors one for pass/side for hot/cold air then one to control position of air like defrost or vent or floor, then the driverside cold/hot air, i think this motor is on driverside part of heater box, to make sure locate each motor while moving all controls until you spot the one that doesnt move, then remove it and move door manualy to see if you get heat, then replace that motor, hope this helps,

Dec 26, 2009 | 2003 Jeep Grand Cherokee

1 Answer

I have a 2001 Jeep Grand Cherokee. Originally blew only cold air no matter what the heat settings were at. Then blower stopped working. Discovered wires were corroded and replaced them as well installed...


either bad recirc doors or a possible bad heater core. Open the hood and when the car is warmed up to mid point on the temp gauge look on the passenger's side firewall under the hood. You will see 2 black rubber hoses running through the firewall. Feel each hose and if one of the 2 are cold then you have a bad heater core. Otherwise most likely the recirc door.

Nov 16, 2009 | 1994 Jeep Grand Cherokee

1 Answer

2003 Jeep Cherokee (Liberty) air con


You most likely have a problem with a part called the air temperature control blend door, it controls the air flow across the AC core or heater core, it is most likely warped or the motor that operates it is defective or in most cases both are in need of replacing. This repair requires the entire dash be removed to access the AC parts.

May 18, 2017 | 2002 Jeep Liberty

1 Answer

Heater ac blower inop and only cold air blows on passenger side.


The blower problem on your jeep needs proper diagnosis. This could be one of several problems.
As simple as a relay or as big as a blower motor. With automatic temperature control you could be looking at a control assembly.

the cold air on the passenger side is a passenger blend door problem. Could be the actuator or a broken door. This problem requires removal of the entire dash to get to the problem. Not something you want to tackle without a complete step by step set of instructions.

I do have one other suggestion for this problem. You will still have to get the blower problem to complete the repair. Copy this link and go see what you think about blend door repair.

http://www.heatertreater.net/Jeep%20Page.htm

Best Wishes
Good luck

Mar 31, 2009 | 2000 Jeep Grand Cherokee

1 Answer

Heating system blows only cold air


it maybe a blend door problem. if both hoses at the firewall for the heater are close in temperature its not likely a heater core. the actuator for the blend door is located on the bottom of the heater/ac box towards the middle of the bottom. it will be a tight fit but you can remove it without removing any part of the dash. take it off and disconnect the power. start the vehicle and manually move the door and see if the temp changes

Jan 11, 2009 | 1996 Jeep Grand Cherokee

4 Answers

Heat


Mine did the same thing. The quick fix is to turn the knob to the heat side, then push gently on the knob itself. You'll instantly feel the air get warmer. The real fix entails taking the dash apart.

Oct 28, 2008 | 2003 Jeep Grand Cherokee

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