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Jeep Grand Cherokee A/C Heating Ventilation

372 messages,  Last post on Oct 27, 2009 at 2:04 PM

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

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#360 of 372 Re: No AC in a 2000 Jeep Grand Cherokee LTD codes 54 56 [danielbaute] by danielbaute Sep 18, 2009 (2:51 pm)
Replying to: danielbaute (Aug 17, 2009 1:53 pm) I found my problems... The issue was 2 fold... first the reason the compressor wouldn't kick on was that the car had a major ac leak (there is a pressure sensor that keeps the compressor off when there is not enough pressure in the system) and secondly the blend door towards the firewall that I couldn't see was actually broken per the stored codes in the ac control panel. The car has had a small leak for a while now and we've had to charge it about every spring for the past 2-3 years. We just charged it in late May so I didn't think it had time to leak out as its been almost as predictable as old faithful in about once a year but apparently the leak became really bad really fast. Thankfully the last time I charged the system I installed the UV dye freon and when I had the heater housing out to replace the broken blend door I checked the evap coil with a UV light and the special yellow goggles, it lit up like a Christmas tree. So how or why I had 3 simultaneous part failures or at least 3 within a very short period of time I do not know but now the whole system is up and running great. I will say I'm not a professional auto mechanic, I am very mechanically inclined however but removing the dash was fairly difficult and took the better part of a full Saturday and night to remove it and replace the parts and reinstall the dash. I actually took a couple weeks in real time because I had to get the evap coil and it took a while to get re motivated again but I saved myself, I'm assuming close to a grand over having the dealership fix this problem. I've read reports between $1,000 and 1,500 from the dealer for just the labor on this type of job so I feel accomplished and it's working great.
#361 of 372 2000 Grand Cherokee AC Problems Please Help!! by jthunt89 Sep 19, 2009 (8:30 pm)
I'm at the end of my rope and really need some help. My wife who is 5 months pregnant has a 2000 grand cherokee and the AC doesn't work. We took it to the local garage two months ago and they diagnosed the condenser fan was broke. We had that fixed ($500). Then a week later the AC was blowing hot again and we brought it back to them and they said it was the wiring harness for the fan that wasn't working so they clipped off the end and made a better connection. That worked for another week. After which I brought it to the Jeep dealership and had them diagnose it and they said it was the evaporator and we had that replaced ($1200). That worked for three weeks and then we brought it back to them and they said that the pressure was too high (375 lbs should be no more than 270 lbs) so they fixed that and that lasted for another week (no charge). We brought the GC back in today and they said there is a leak in one of the lines and to replace it is $400. They asked if I wanted them to order the part and I picked up the GC and said I would get back to them. I really can't believe this. Please help!! Replies to this message: shelley91935 (Sep 20, 2009 7:43 pm)
#362 of 372 Re: 2000 Grand Cherokee AC Problems Please Help!! [jthunt89] by shelley91935 Sep 20, 2009 (7:43 pm)
Replying to: jthunt89 (Sep 19, 2009 8:30 pm) I had this problem back in 2004, 04/22/04 Carl Burger Jeep World $164.95 A/C not blowing out of center ducts, instead it is blowing hot air Removed battery tray and repaired vacuum leak.   I had another situation back in 01/28/06 Kirby Olds-Jeep Suzuki $13.08 Purchase Gasket and Thermostat (this is on the "if this happens to you" page of a service thing,... it was not on a "recall list" and of course not on a warrantly... that price was for the part itself and my mechanic at the time fixed it for free since I was getting a lot of work done at the time.)   Either one of these may fix the problem...or at least for a little while. I am having a problem kinda like this gain so I am going to my mechanic tomorrow because my a/c is now intermittantly blowing when I let off the accelation.
#363 of 372 Condensate in Cabin by tom5571 Sep 27, 2009 (2:47 pm)
I have a 2000 JGC Laredo. I noticed a musty smell in the cabin, after much looking I found the underside of the carpet on the passenger side soaked. I have come to the conclusion that the condensate is not draining from the housing (the heater core is good). I tried cleaning the drain but with no joy (with a wire) I really don't want to dismantle the dash at this point. Does anyone have any ideas or has anyone else had this problem? Replies to this message: tuggajb (Oct 05, 2009 1:17 pm)
#364 of 372 Heater Core leak 2002 Grd. Cherokee. by teacherspet123 Oct 03, 2009 (4:07 pm)
I have a leak and the repairing is costly( $1200.00) to say it lightly. Has any one ever used Liquid Glass to stop the leak? My plan is to make a temporary fix until I can save up for it. Thanks, Rickey Replies to this message: tom5571 (Oct 03, 2009 5:39 pm)
#365 of 372 Re: Heater Core leak 2002 Grd. Cherokee. [teacherspet123] by tom5571 Oct 03, 2009 (5:39 pm)
Replying to: teacherspet123 (Oct 03, 2009 4:07 pm) About all you can do now is bypass the heater core. You will not have heat in the cabin but it will buy you some time to save the money for the repair or gather what you need to do the job yourself. Sorry to say but the dash will have to be removed for this fix, plus the freon will have to be recovered.
#366 of 372 Re: Condensate in Cabin [tom5571] by tuggajb Oct 05, 2009 (1:17 pm)
Replying to: tom5571 (Sep 27, 2009 2:47 pm) on the bottom of the condenser housing there is a valley that extends from the front to the back of the housing   if you drill a small hole on the edge that faces the seat you can then clean out the botom of the valley with a wire the hole can be 1/2 inch so can get it cleaned out then find a rubber plug at peb boys that will plug the hole you drilled (would find the plug first then you know how bigto drill hole) BE carefull when you drill so as not to hit evap core
#367 of 372 2000 Jeep Grand Cherokee Laredo by jgclaredo Oct 16, 2009 (6:50 pm)
Does anybody know or have any suggestions as to what this problem could be- my a/c is not blowing much cold air at all. My heat works just fine (knock on wood), but my air doesn't seem to wanna blow cold air. I checked the refrigerant, and that is around like 40 psi- which is right about where it should be. So now I'm not exactly sure what the problem is? I've had this jeep for three years now, and am starting to have some problems w/ it. It only has 115,000 miles on it. I really appreciate any advice I can get.. Thanks!
#368 of 372 Re: Dual Climate control [crxeffect] by goguen Oct 20, 2009 (8:02 am)
Replying to: crxeffect (Dec 29, 2007 12:27 pm) If your blower fan relay which is derectly behind blower fan is not in place and secured properly you will have cold air blowing in from air box.

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