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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

What is this discussion about? Heating / Cooling

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#41 of 791 by Mr_Shiftright HOST Sep 04, 2002 (7:30 pm)
I don't think there's any two year warranty on parts that are replaced if that's what you mean. Probably only one year.
#42 of 791 Now! by fleetwoodsimca Sep 04, 2002 (9:19 pm)
Here's where I thought Ford had a corporate thing, where all big repairs were guaranteed for the length of your ownership. I must be wrong. Is that a GM thing? Chrysler? Am I totally whacked out on this?
#43 of 791 1996 Ford Ranger a/c by ranger96 Sep 06, 2002 (3:17 pm)
I just bought a used 1996 Ford Ranger.Every time I turn on the a/c, the idle goes to about 2x.And every time when the car is not moving the idle keeps on going to 2x and then go back down to normal about 3 times.Does that mean the a/c needs freon soon.
#44 of 791 ranger96 by swschrad Sep 06, 2002 (5:19 pm)
who the heck knows. it DOES mean that idle control is not working on this car when the voltage signal from the a/c-ON switch hits the engine computer.   the fact that it's surging back and forth is a sign to me that there are iffy signals and responses from other systems. rather than say it's a good bet the spark is weak and may be blowing out in some cylinders and that the 02 sensor is lazy and maybe the EGR valve is plugged, all of which are plausible... I am going to say this truck needs to be put on the box and have a full computer diagnosis run, and see what it turns up. bad idea to throw parts at the truck randomly until you either get lucky or run your credit cards to the limit.
#45 of 791 Escort A/C Problem by cards_200 Sep 08, 2002 (8:41 am)
Recently picked up a '97 Ford Escort. It seemed that the a/c was always on - and blowing cool air regardless of a/c switch setting. I verified that I could hear the relay switch (loud & clear) kick in/out inside engine compartment. So I assumed a/c working ok and cool air was just residual after shutting the air off. Now after using for a while I'm convinced a/c is always on. Perhaps the compressor clutch never disengages? Is there any way to test this? Can the compressor be visibly verified (with a/c switch off)? If the clutch is stuck (engaged) - any way to manually disengage it? Car performance seems about the same with the a/c switch on or off - another reason I'm wondering if a/c stuck on. Thanks for any help.
#46 of 791 sure by swschrad Sep 08, 2002 (2:42 pm)
there are two parts to the magnetic clutch... a pulley which always spins... and a contact plate in front or behind that only spins when the AC is energized.   shut off the car and determine which is which (I would bet there is a front clutch plate.) put a contrasting paint or crayon mark on it.   now start the car and look. you would have to select between any a/c mode (defrost, max, auto or cool) and a non-a/c mode (vent, heat) to determine what's running.   if the clutch never pulls out, even in vent or OFF, you probably have a bad switch or a wiring fault in the dash controller.   verify that by shutting off the car, and unplugging the wire connector to the compressor clutch. start 'er up again, and see if the clutch plate is still spinning. if so, it's a stuck, burned, or welded clutch. if not, it's wiring.
#47 of 791 Can Plugged AC Drain cause other damage by hkhagemann Sep 12, 2002 (2:12 pm)
When the car was about 8 months old my AC drain was plugged. both front and rear carpets were soaked. The dealer blew out the drain and I figured it was just a fluke. This March my airbag light would not go out. Dealer said my heater core was rusted out and the seat bag sensor shorted out from the water from the heater core. How can a heater core go in a cre less the 4 years old? It cast me over $1300 for a new heater core and air bag sensor. Anyway in June my AC drain plugged again. Now my air bag light doesn't go out again and my cd player doesn't work. They fixed the air bag senser free of charge this time, but I don't want to spend any more on this if the problem is the result of the ac drain. They tell me tis is quite common and the only thing I can do is continually check my drain. This sounds like a design flaw to me. My car is garage kept and I have never experienced this with any other car I have ever owned. Feedback anyone...
#48 of 791 thin metal in the cores by swschrad Sep 13, 2002 (5:15 pm)
saving weight and money, you know. they moved the empty box down the assembly line and somebody whispered "metal" as it went by, that's all that they are any more.   if it was me, I'd have the a/c drain hole enlarged in the evaporator case.   the idea is to keep the core dry all the time on the outside, and wet all the time on the inside with fresh good new (under 2 years) coolant to cut the corrosion issues to a minimum. if you are in a slush-heaven with road salt, it isn't a bad idea to run the hose into the vented front cowling once in a while and run the crud out of the vents.
#49 of 791 by kirstie_h HOST Jun 24, 2003 (2:12 pm)
Summer is officially HERE, at least in the midwest, so I thought we could resurrect this topic for the season.   kirstie_h Roving Host & Future Vehicles Host
#50 of 791 99 Grand Prix A/C water leak by loams Jul 07, 2003 (6:17 am)
I'm virtually certain my drain is plugged as now my passenger side front carpet gets soaked whenever the A/C is on especially in humid weather. Question: Where do I find the drain? Is it a hose I can trace under the hood from the firewall or from the A/C unit. I tried from inside the car and didn't see anything under the dashboard. Any advice would be much appreciated

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