Question about 1998 Ford Explorer

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My 1998 ford air conditioner do not get cool, I put the 134 in but still do not get cool. Dont see high side.

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2 possibilities maybe three fist need high side reading to tell if orifice tube is clogged with metal debrie and if clogged this probably means the compressor is coming apart internally next check hot and cold blend doors to see if they are working also check engine fan for flow when engine is hot if you can spin fan with engine off then the center piece of the fan is bad

Posted on May 28, 2011


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1 Answer

Air conditioning clutch engages for a few seconds and then kicks out, does not cool.

it sounds like you are low on r-134 an easy way to to check in to put a paperclip in the a/c high pressure pigtail (conecter on the wire side) and try using your a/c. if it works all you need to do is have your a/c serviced. mind you if it is low you also have a leak that needs to be fixed as well.

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What is low side in ac unit

the low side is the larger hose that goes back to the compressor.
the high side smaller line comes from the compressor to the to
the condenser ( or the unit in front of the raditor ) on any units
with r-134 from the factory the low side has a different fitting for
putting in freon. some high sides don't use any hose connectors
because there is a site glass in the line where the high side would connect.

Jun 21, 2010 | 1998 GMC Sonoma

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The air conditioner on my 19998 Buick LaSabre has been slowly dying. For few weeks air would cool only with higher acceleration. Now, it's not cooling (maybe just short bursts with 55+ mph)..could it be...

sounds like freon, and it possibly has a slow leak on a seal or gasket. Go to a Carquest or an Advance Auto store and buy a can of sealer for 134.It comes with a hose for easy filling. It has sealent, small amount of 134, and oil to lubricate the system. Try that, follow directions, and that should be a possible fix. It costs around $21.95 good luck.

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Need to know if my 1993 ford club wagon is r-12 or r-134 is there any way to tell from fill ports? the r-134 CANISTERS FIT ON THE LOWSIDE, ARE THE R-12's a different size?

If it is a quick connect fitting, it is R-134a
The low(charge) side fitting is: 13mm
The high side fitting is: 16mm

If it is a threaded fitting with threads on the outside, then it is the older R-12 refrigerant and can only be serviced by a licensed air conditioning service.

The low(charge) side is 7/16" threads
The high side is 3/8" threads

When servicing your air conditioner it is best if you have gauges, but it can be done without, just be careful.

Assuming the air works, but just not putting out that much cool air, then 1 or 2 cans of refrigerant won't hurt.

If there is no pressure/refrigerant in the system at all then it is usually a sign of a leak and should be taken to a pro because you may need to replace the receiver/dryer and have the leak fixed. The system needs to be evacuated for maximum efficiency if there was a leak or if hte system has been opened.

Adding too much refrigerant can be catastrophic as the high side pressures can reach 200-300psi on a hot day. So if you happen to have a low side gauge, and it reads somewhere between 35-45 with the Ac operating, you are golden.(tire gauge won't work)

Don't be surprised if the compressor doesn't kick on right away. Some vehicles are equipped with a pressure switch to keep from damaging the compressor if it runs low. Usually after adding one can, it is enough to engage the compressor.

Hope this helps.


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1 Answer

2005 KA blowing hot air out when set to cold

start car.turn on air conditioner high cool .raise hood look to see if the compressor clutch is engaged and running.if yes your ac air door could be stuck closed or the air door vacuum actutator not receiving vacuum.a vacuum line is broken or off. or the control switch bad.that control the AC and heater mode. if compressor clutch is not engagged.check for power at compressor clutch.if yes compressor clutch coil open. or the air conditioner refrigerant R 134 is low take car to a private garage with a good reputation. they wont be expensive as the dealership.have them hook car air conditioner to a manifold gauge set to check your refrigerant low side and high side pressure.

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Mustang Air Condition

Sounds like you have a freon leak somewhere. No gas or low gas in the system will not let the clutch kick in. Have it check out professionally, unless you know what you are doing in terms of low side and high side pressure check. The latter can be dangerous if you are not familiar with the procedure, if you connect the freon or the 134 can to the wrong nozzle, the can can blow up.

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go to auto zone and buy a 134 recharge kit follow the directions on the box, you will need to find to LOW side service port there are two ports with plastic caps on the ac lines you are looking for the one that is attached to a larger diameter ac line. the kit will ONLY FIT ON THIS FITTING so you dont have to worry, there is a label under the hood somewhere thats green and says how much 134a you should install be carefull wear safety googles and good luck, please rate -jeff

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follow the air conditioner line from the front of the car. valve on the line will be near the front

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Black Cap to your left, right up front as you open the hood. Next to the Engine Coolant cap.

Jun 22, 2008 | 1999 Plymouth Grand Voyager

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