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1996 Grand Jeep Cherokee - AC evaporator just replaced. System now blows cold. However, the system makes a ''gurgling sound'' especially when car first started. Bigger problem is that water (condensate) floods the passenger side front floor panel. The drain line was blown-out yesterday to make sure that it was not clogged. The carpets were shampooed and then dried out thoroughly. Today the passenger side front floor panel flooded again and carpeting soaked (a good 3/8'' of water, based on amount of water soaked up in towels). Suspect someone forgot to attach condensate drain line; twisted drain line; improperly re-connected drain line... OR perhaps the new evaporator that was installed is faulty. I am to have service tech tear the dashboard off again and have another go tomorrow. But my confidence level is not high... as I asked about the drain line the connects to the evaporator and runs through the firewall and out... and I was advised there is no line that runs through the firewall. This contradicts the mechanics at a very reliable dealership service department, who will have the next shot at the problem----if my local ''car care'' shop fails to remedy the problem. Any advise or info on this problem? Who's telling the truth here? Thanks, Mr. Running out of money for rental cars!
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the refrigerant can be recoverd by the shop. discuss the cost with them and explain that you're going to do work yourself. and would like them to recover it, and once repairs are done, evacuate and charge the system. however, once the system is empty, i would replace the accumulator and orifice tube, or the receiver/dryer and expansion valve. which ever your car has. pag oil should also be added to the system. 2-4 oz should do. this can be done when re-charging.
The seal on the AC compressor has probably failed and allowed all the refrigerant and lubricant to be lost. This allows the bearing to run dry and now it is failing and making noise.
1. You could have the AC repaired, the compressor repaired or replaced and the system refilled.
2. You could have a mechanic disconnect the system and possibly remove the compressor (only if this model does not use a belt that relies on the compressor being in place).
3. It is probably way too late to try to refill the AC system with R134a refrigerant as it would just run out past the failed seals.
If anyone has an AC unit that just recently stopped making cold air they should attempt to recharge the unit (if it uses R134a - check your manual or underhood stickers). I just did and saved my compressor and AC unit from further damage.
I agree, these vehicles have a problem with the blend doors and since the accuators hit the door when it opens and closes, it breaks the doors. and it's a huge job to replace them.
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
Yes you can charge the system, kits are available at any good parts store. Let me ask these questions before you attempt repair
1. Is the system charge low, no pressure in the lines?
2. If the system is low on refrigerant then there must be a leak, you must fix the leak 1st or you are throwing away good money, the new charge will leak out in short order.
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