Question about 1996 Ford Explorer

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Ac unit was cooling perfect one min....now won't even engage.

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Could be the pressure switch . with car running ac on max . there is a plug on the silver canister under the hood. unplug it take a piece of short wire (both ends stripped) stick one end of the wire in the plug on one of the terminal ends. then touch the other end of the wire to the other terminal end .while doing this watch the ac compressor. you should hear a click and see the clutch engage.

Posted on Jul 11, 2010

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The AC condenser fan on my 1990 Plymouth Voyager does not switch on even though the compressor clutch engages and condenser fan runs fine when connected directly to 12 volt source. Would appreciate any...


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I'm tryin to find out if my a/c compressor is out. So I know that the dealer said that I need it charged and I didn't get it done. So lately it has been makin a loud noise and rattlin on the...


You may be having AC problems but that is not what happened when the Steering locked unless the AC is on the same belt as the Power steering unit. That whining you are hearing when you turn is actually the power steering unit being low on fluid or the power steering pump going out. Based on what you have described my guess is that the unit has gone out and needs to be replaced. As far as the AC compressor is concerned, if the unit is low on Freon it will not engage once it gets too low unless the clutch goes out. When you look at the center of the AC compressor when the engine is running and the AC is off you should see the pulley free spinning and the very center of the pulley won't be spinning, that is the clutch Dis-engaged. When you turn the AC on the Clutch should engage and allow the compressor to work. You will hear it kick in and kick out repeatedly if it is low on Freon. If it is too low it will never kick in because the low pressure switch won't allow it.

Jun 16, 2011 | 1995 Oldsmobile Aurora

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A local garage mechanic says the clutch has stopped working on ac that is why it blows hot air instead of cool says it will cost $900. to fix cause I have to buy the whole ac unit does this sound correct?...


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Jun 07, 2011 | 2004 Kia Sedona

1 Answer

Car gets hot whenever the AC is on, once turned of the temp starts to go down.


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Apr 25, 2011 | Hyundai Tucson Cars & Trucks

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My 2002 Expedition air conditioner will sometimes blow hot air and others cold air


I would check the following possibilities:
1. Is compressor clutch working? - You need to do this when the ac is blowing hot air only - locate compressor drive pulley on engine - rubber belt wraps around it. Start engine and set to max ac. When the ac is blowing hot air, look at the center of the compressor drive pulley using a good flash light - watch it for a while, it should be spinning with the pulley - this means the compressor is engaged. If not, the compressor is not engaged. If your ac is blowing hot air, then the compressor should be engaged and running (trying to cool). If it is not engaged, then your compressor clutch is probably going out. Could be low voltage to clutch, but more likely the clutch is worn out and only working some of the time. Note: if working normally, the compressor clutch will engage and disengage in cycles- but the air should always be cold. If clutch is bad, compressor would need to be replaced (sold as one unit). This is tricky to diagnose and could take some time - you need to do it when ac is blowing hot air but set to max cooling.

2. Low on refrigerant or refrigerant has moisture in it? If your ac blows cold initially after being off for a while, then heats up, and continues to regularly cycle back and forth between hot and cool air, then the system may be low on refrigerant or the refrigerant may have moisture in it that is freezing and restricting refrigerant flow. An a/c shop can check refrigerant level and even replace refrigerant if moisture is suspected.

Could be other issues, but I would start with these.

Good luck

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On the bottom of the air unit is the lever that changes temps. It likes to fall out of place.I propped mine back with a piece of half-inch copper pipe a couple of years ago.Remove glove box then panel on front side of console to access.

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