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Jeep Grand Cherokee A/C Heating Ventilation

511 messages,  Last post on May 23, 2013 at 8:57 AM

You are in the Jeep Cherokee and Jeep Grand Cherokee Forum.

What is this discussion about? Jeep Grand Cherokee, Heating / Cooling, SUV

Messages Page 51 of 52

#500 of 511 Re: 2002 GC no air volume on heat or AC [dreinke] by jsonger

Apr 09, 2012 (6:19 pm)

Replying to: dreinke (Jul 21, 2011 4:48 pm)
Did you ever get an answer to this problem? I've got the same issue with my 01 GC Limited. No one has offered any advise. The fan blows pulling 12.5v, no trouble codes, blend doors work, recir door functions. No significant air flow.

#501 of 511 Re: 2002 GC no air volume on heat or AC [jsonger] by eq9z

Apr 09, 2012 (8:14 pm)

Replying to: jsonger (Apr 09, 2012 6:19 pm)
Hi, I got an answer and it is fixed. Seems the costly mechanics put the little piece in backwards (the blower control) and it was turning the wrong way. I researched the problem, called Network and told them, they told me I was female, blonde did not know what I was talking about so I took it to a friend who works on AC's and RV's and he looked at it and said "hey it is turning back wards", he changed the wires and the thing works just fine. We still have a blend door not functioning, but at least the blower is blowing at 100%.

#502 of 511 vacuum line and speedometer by im3of3

Apr 11, 2012 (4:10 pm)

OK.....I've been reading all these posts on here, but I just can't find out where one certain vacuum line goes. It hooks into the 'main' line just above where the a/c hoses go through the firewall. But it is a short line (could have been broken off) and there are no other lines coming through the firewall at either hoses, a/c or the heater hoses. I've tried to post a picture, but I'm doing something wrong and it won't post. OH...and the selector switch for the heater/defrost IS stuck on defrost...and if that line goes through the firewall.....where does it end up at ?? OH and it is a 93 Jeep Cherokee Loredo.
 
Also, my speedometer hasn't worked in God knows how long, and I've replaced the VSS, and it still doesn't work. When the speedometer doesn't work, then neither does the odometer and the speed control. The tachometer works just fine, it's just the speedometer that don't work......any ideas ????? I need help....... Thank You

#503 of 511 Passenger side heat and air for 99 GC by beebers

May 09, 2012 (5:27 am)

I've read this entire discussion and my head is spinning. I have two issues and am not sure if one is related to the other. First I seem to be losing air conditioner refrigerant which may be the result of a slow leak. I understand that I can take this into a garage and they will place something with dye in it to find the leak. Is this dye available to customers at a place like pep boys or should I let a professional handle?
 
My second issue is that my passenger side vents are shooting out cool air when the heat is on, and warm air when the air is on. From what I've been reading on here this could have something to do with the blend door for the passenger side, and I think I remember reading that this is more difficult to fix on the passenger side than for the one on the drivers side. I am fairly mechanically inclined, more with hammers and nails, and want to know if this is as simple of a fix as some of you are saying.
 
Lastly, I'm reading about fault codes on here, where do you find those at? Do I need to take it to a garage for a diagnostic to get the fault codes?

#504 of 511 97 Jeep Cherokee A/C and Blower not working by lcatan

May 22, 2012 (6:46 pm)

Hi:
 
I have a 97' and recently, the A/C died. Today, out of nowhere, the blower went. I checked every fuse (both inside and near the engine). All of the fuses are perfect. This does seem to be an electrical issue, but does anyone have any knowledge as to where to start with this?? It will be 91 degrees here in PA on Friday, and I am freaking out!! Please HELP!!!
 
Laura

#505 of 511 Re: 97 Jeep Cherokee A/C and Blower not working [lcatan] by tuggajb

Jun 01, 2012 (1:06 pm)

Replying to: lcatan (May 22, 2012 6:46 pm)
sounds as if your blower resister went if you don't have blow fuses rectangle thing held on by two screws need blower motor

#506 of 511 2004 Jeep GC: Heater blows cold air on driver side by khankinsirwin

Nov 15, 2012 (4:45 pm)

Just purchased a 2004 Jeep Grand Cherokee. Great condition, no accidents, but the heater blows only cold air on the driver's side. Passenger side is lukewarm. Any experiences with this, and estimated costs for repair?
 
Thanks

#507 of 511 Re: 2004 Jeep GC: Heater blows cold air on driver side [khankinsirwin] by oldtrail

Jan 14, 2013 (6:55 pm)

Replying to: khankinsirwin (Nov 15, 2012 4:45 pm)
I have a similar issue, passenger side blows cold and drivers is hot so went online and followed video how to remove glove box and access blend doors where normally the problem is. I had the rear motor ( blowing cold side) was stuck. problem is cant get to it. a kit can be bought to repair faulty doors. pretty easy to fix. They recommend tools to cut but I used sharp drywall knife and worked fine. If you have dual heat controls then you must purchase a kit containing a separate motor to replace the rear one you cant get to and add it to the front area as the video shows. (heatertreater.net) is one site.

#509 of 511 Re: 2004 Jeep GC: Heater blows cold air on driver side [khankinsirwin] by blendor

Jan 22, 2013 (11:54 am)

Replying to: khankinsirwin (Nov 15, 2012 4:45 pm)
Hello khankinsirwin:
 
Your symptoms sound like the common blend door problem.
First thing is you should check the HVAC system fault codes.
 
The cost can range from a DIY job of $20 to a repair shop cost of $1,800
 Of course the cost depends on what is wrong with the system.
 
Also if you cut an access hole to check the blend doors and rear actuator motor (The actuator motor between the firewall and the HVAC box)
 
And you find that the rear actuator motor is not working.
That does not mean the actuator motor is bad.
 
Usually what happens is the computer will shutoff an actuator motor that makes one revolution without any resistance.
 
That actuator motor could still be in good working condition.
 
Post a message, if you need more information and on how to check the rear actuator motor.

Messages Page 51 of 52

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