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Maintenance & Repair Climate Control Problems (Air Conditioning, Heat) - All Cars
791 messages, Last post on Aug 12, 2009 at 12:55 PM
You are in the Maintenance & Repair Forum. Your Host is mr_shiftright
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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. |
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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.
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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. |
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| You might look for a way to vent the condensate through a hose that you route elsewhere. | |
| 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. | |
| 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. | |
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the a/c uses something in the range of 10-15 HP to operate, depending on the size of the car and compressor. that is loading down your engine quite a bit, and the cooling system is not up to the task. what could it be? bad thermostat, dirt/bugs/guck blocking the radiator fins, bad fan motor or relay or dying fluid clutch, water pump marginal or worse, gutless coolant that is no longer a 50/50 mix due to age, internal blockages of the radiator, collapsed hose due to bad radiator cap... lots of things. a temporary aid is to put down the windows (so you don't die when you do the rest of this,) and turn the heater up full to act as an auxiliary radiator. but you will need to get after the real issue, which is the cooling system is not doing its job under stress. |
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| swschrad really covered it, for the most part. I'd start with coolant level and radiator cap, then go on to the rest. Don't be too surprised if you find the thermostat has been failing. | |
| My 1990 Toyota Celica loss most of its refrigerant and this triggered the auto-off sensor. I have refilled the air conditioner refrigerant but I do not know how to reset this sensor. Any help? | |
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This is a friends car. I got this info from his wife. I'll get to him tomorrow for a better explanation Anyway, the problem appeared to be the AC switching from vents to defrost intermittantly. Actual problem seems to be (per dealer) the AC reversing somehow, and sucking air back into the engine?? Doea any of this make sense (I really need to get a better explanation). ANyway, dealer was stumped, and actually decided to replace the engine! Chrysler corp. seems to have come up with another possibility that involves replaceing some sort of module. I will try to get a better explanation and post it tomorrow, but any initial thoughts will be appreciated. |
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