Question about 1999 Ford F250 Regular Cab

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My A/C will not work. I do not have a blown fues or is it low on R134a any ideas

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If the compressor is not engaging, it is most likely low on refrigerant. Locate the dryer/receiver, under the hood on the passenger's side near the heater box, and locate the two wire plug on the side. Unplug this and put a jumper across the two wires on the plug (not on the dryer/receiver) and see if the compressor engages. If it does then you are low on refrigerant and should have your system checked for leaks and recharged.

Posted on May 27, 2010

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2 Answers

WHERE IS AC FUSE


Well, there isn't a fuse for the A/C switch. the A/C is controlled by the ECM. Unfortunately, you will have to have the A/C checked. It will take a scanner and a set of gauges to do it. The scanner checks the sensors in the system. The gauges will tell you what needs replaced, if anything.. Some times all it needs is recharged.

Aug 18, 2014 | 2000 Ford Ranger SuperCab

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Replaced all A/C major components (compressor, filter-drier accumulator, and orifice tube) except condenser due to a seized compressor and failed clutch bearing. Flushed system and appeared to have no...


It sounds like you've done just about everything except to check if there is a bad or intermittent wire causing this or perhaps your low-pressure safety cutout switch is possible going bad causing the compressor to kick on and off?

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Ac not working 1996 jeep cherokee country.doesn't put out cold air


You could be low an R134a coolant, compressor might not be working or the pressure sensor might not be working. First thing you need to do is check the compressor look at the front of it and see if the center is spinning when you turn on the air, it should spin when the air is on or the defroster is on, if it is not spinning the R134a may be low or the pressure sensor could be bad. If it is spinning it may just be low on R134a but not low enough for the sensor to shut off the pump.Ok here is how to check if the compressor is (not spinning) Follow the aluminum lines off the AC compressor under the hood until you find the pressure sensor it will have a plug with two wires coming off of it, unplug it and get a 2 or three inch piece of wire like speaker wire or something that has a bunch of small wires in it and not a big solid single wire, strip both ends of the wire and insert them into the plug holes of the switch plug this should engage the compressor if not the compressor may be bad if so let the compressor run for a little while if the ac gets cold the pressure sensor is bad if not it the system is low on R134a which you can get from Wal-mart and do your self. If it does work with the wire and you determine that it is just the sensor you can run it with the wire in it but if the system ever gets low on R134a the pump will not shut off and it can burn out the pump so it is not recommended although i've been running mine like that for about a year now. Please post any further Questions.
Eric

Jun 01, 2011 | 1996 Jeep Cherokee Country

1 Answer

Air conditiner not working


First, check for sufficient pressure of refrigerant in the system.
Determine if you have R12 (screw on connector on low side) or R134a(quick connector on low side).

When you turn the a/c on (and the car is running) does the fan start blowing on the radiator? If not, then the system may have a blown fuse or be low on refrigerant or deactivated in some other manner.

There are R134a retrofit kits where you can add adapters to an older R-12 system, add the proper oil for conversion, and get it to work with the newer refrigerant. Also, many of these kits have an antileak sealant that can prevent refrigerant from leaking out of seals so fast.

On a car that old, I wouldn't be surprised if the refrigerant all leaked out.

Good luck on this repair.



Oct 15, 2010 | 1990 Dodge Dynasty

2 Answers

The air is blowing out hot. how fo i fix


If the a/c compressor clutch is not engaging, then the freon or r134a pressure may be low.

Pressure on the low side should be 25 psi to 45 psi.

Since your car is a 1990, it may have been made before r134a was used and may require an r134a retrofit kit that includes oil, r134a, and adapters to update the a/c.

R12 used to be used but is very expensive and requires a certified techncian and recovery and recycling equipment to use, and probably would leak out faster than the r134a system.

Aug 10, 2010 | 1990 Chevrolet Corvette

2 Answers

I want to recharge my air conditioning in a 1991 cadillac deville


Here's what you do.

Get an R134a recharge kit or R134a recharge hose (with an optional gauge) that has the adapters to put on to the low side port located near the firewall on the passenger side.

If the system is down already, the computer may have disabled the compressor.

To reenable the compressor, disconnect the battery for a few minutes and reconnect.

Charge the system with about 2 or 3 11 oz. or so cans of R134a while the car is running and the temperature is set to the lowest (say 60 deg. F).

If your recharge hose has a gauge on it, the right pressure should be in the green area ranging from 25 psi to 45 psi on the low side when the compressor is running.


Jun 10, 2010 | 1991 Cadillac DeVille

1 Answer

97 lumina blower not working


CHECK FOR BLOWN FUES AT FUES BOX

Feb 02, 2010 | 1990 Chevrolet Lumina

1 Answer

While car was idling, I heard a ''popping'' sound. Looked under hood, near the ac high pressure line there was a green leakage coming from the switch.The top had blown, possibly from the Tx heat.Ac now...


Regardless the bad switch needs to be replaced. Your mostly going to loose some R134a and you may need to have the system serviced, but replacing the switch your self can be done like changing a spark plug. Just make sure your fast so you don't loose that much R134a and keep your cost of the repair to a minimum. Good luck and hope this helps.

Jul 09, 2009 | 2003 Hyundai Accent

1 Answer

Can of r134a hose won't stay on low pressure port


Low side is the smaller of the two fitting wise, but usually the bigger hose.

Jun 25, 2009 | 1997 Buick LeSabre

1 Answer

Low beams don't work


1 U might both low beams out, I have seen it sounds dumm, or u might have a blown fues, could B switch

Mar 25, 2009 | 2001 Toyota Tacoma

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