Last post on Sep 30, 2013 at 7:06 PM
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Heating / Cooling
#1 of 839 Air Conditioner Problem
May 31, 2002 (9:41 am)
Anyone have a problem with their 2001 Jeep Grand Cherokee Laredo air conditioner? Mine leaks into the passenger compartment and soaks the right front side (carpet/floor board). I have had it back for dealer service and they can't find/fix the problem.
Wet Feet in Georgia.....
May 31, 2002 (1:35 pm)
I don't think this is product specific, but it appears the evaporator drain is either plugged or misrouted. This is basic auto knowledge it seems the dealer would address this first. There is no other reason for this condition, if it only happens after prolonged ac use, not rain induced.
May 31, 2002 (2:47 pm)
Yep I agree with that diagnosis, perhaps an evaporator drain tube that has come off or maybe even the drain tube for the fresh air vents under the windshield. Either one could be clogged, but the a/c drain would be the one to check right after a/c use.
May 31, 2002 (7:05 pm)
Years ago, I had a Sapporo (Mitsubishi captive import, Chrysler) that leaked A/C water into the passenger side carpet. I searched out the source, and discovered that the pesky water hose that should carry the condensate water to the ground was partially plugged. My solution was to blow it out with an air compressor. Yes. It worked. And it had to be repeated quite some time later, when the hose began suffering the same narrowing again.
Jun 01, 2002 (9:57 am)
That's one remedy, but you have to be careful not to use too much pressure. Sometimes you can dislocate the hose and on some cars it's a real pain to fit the hose back in place.
This is the same issue with fresh air vent hoses and with sunroof drains (and even convertible top drains on some cars, which have hoses running down the rear quarter panels.
#6 of 839 Plugged A/C vent drain
Jun 12, 2002 (11:40 am)
I just purchased a '98 Grand Cherokee and we noticed water in the back floor board. I found out it is a plugged vent line. Problem is at least this year model is access to the line. The service mgr. at the local jeep dealership knew nothing so I went to a well known a/c repair center. They had one in the shop and showed me that they have to remove the dash and pull the heater (or whatever it is) box to clean it out because the drain line is up against the frame and has no access. Cost is $365. I am trying to find a simpler and less expensive method. Anyone know of one? How about some type of chemical to put down somewhere or an enzyme type liquid that would eat up the clog. Please help.
#7 of 839 drill another hole?
Jun 13, 2002 (10:42 pm)
another hole or two in the bottom of the evaporator housing may do the trick, assuming they are in the low spot, and assuming the drill bit doesn't puncture the line and blow all the charge and oil into the driller's face (surgeon general's warning: it's ugly and I ain't gonna look at you if you do that.)
sounds like another "elegant" engineer who doesn't want to leave any evidence they were designing things. shoot, if it's gotta drain, make a drain hole that you can see, poke, and point to with pride.
I guess I'm getting to be an old fart, but I like serviceability.
Jun 14, 2002 (8:30 am)
You might look for a way to vent the condensate through a hose that you route elsewhere.
#9 of 839 AC Leaking water
Jun 19, 2002 (5:53 pm)
I had a similar problem with my '01 Dakota. I'm not sure if it has the same evaporator configuration as the Grand Cherokee. The drain for the evaporator did not have a hose attached to it. It only extended about an inch from the firewall and the airstream was blowing the water back along the drain and into the cab. I attached a piece of hose to it and haven't had any problems since.
#10 of 839 AC causes car to overheat
Jun 25, 2002 (7:57 pm)
I have a 1994 Toyota Camry. The car has a lot of miles on it but it's still in great shape. The only problem I currently have is that, whenever I put the air conditioner on, if it's a hot day outside, my water temperature guage will start to rise. I have to turn the AC completely off to get the car temperature to lower to a normal level. I have had the AC repaired once in the past to fix a leak. Any idea what could cause this problem? I'm fairly certain that my coolant level is full.