Question about 2000 Mercury Cougar

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I GOT MERCURY COUGAR 2001.HOW MUTCH R134A DO I HAVE TO RECHARGE

REPLACED THE AC CONDENSER LINE.I DON'T KNOW WHAT IS THE AMOUNT OF 134a freon do I HAVE TO RECHARGE.AND DON'T HAVE THE DECAL ON THE HOOD WHERE IT SAYS HOW MUCH.SO I NEED YOUR HELP

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Posted on Jun 25, 2009

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2 Answers

2006 Ford Fusion Air Conditioning compressure not turning on.


Thats pretty high if the system is not running. Average pressure on the low and high side should be near outside air temp.
Normal low side is 30-40 psi and high side is 200-250 psi when the system is running and the freon charge is full.

Aug 28, 2012 | 2006 Ford Fusion

4 Answers

What type of freon is in GMC trucks of 1987?


R12.... In 1994 R134a was required, but some changed earlier. Yours may have been converted. If the service ports are threaded it still has R12. Hope this helps.

Jul 05, 2011 | 1987 GMC R1500

1 Answer

I need to know what kind of freon to put in my A\C


r134a is the replacement to all other a/c gas.so fully charge with 134.

Jul 27, 2010 | 1996 Chevrolet K1500

1 Answer

The air conditioning doesnt work it just blows hot air even with the ac on. i dont know whats wrong with it if everything needs to be replaced or just something simple. i know nothing about cars


What I would try first is recharge the a/s system, your car came with R12 freon, that type of freon is impossible to get these days, so you will need a retro fit kit to convert it to 134A freon, the kit will have two 134a fittings that screw on to your R12 port, so that the 134a recharge hose will go on, the low side will be the one your add freon through, it will be the thinker hose of the two, the thin one is the high side stay away from that one, you will also need one can of freon (134a), if it works, it might work for a while till the freon leaks out again, then you will have to take it it for repair, but this way you know it's just a leak and every thing else works.Good luck, let me know if I can be of more help.

Jun 27, 2010 | 1992 Honda Accord

3 Answers

I have a 1994 chevy c1500 with a 305 motor. when i turn on the A/C the clutch engages/disengages continuously but no cold air. Any ideas?


Your A/C system may be running low on R134a.
To diagnose problems, an A/C manifold gauge set is needed to read high and low side pressure readings. Avoid adding refrigerant with a simple charging kit like the ones sold at parts stores. Don’t add any stop leak, this can cause problems in the compressor, expansion valve or condenser.
First, on a 134A system the high and low side service ports are different sizes. AC gauge sets have color coded hoses, the blue color coded hose has a connection that fits on the low side service port and the red hose has a connection that will only fit onto the high side. The yellow hose won’t hook up to anything if just checking the readings; it can be used to connect to a vacuum pump or attached to a refrigerant can or tank.
Normal readings on high and low side with AC OFF (static pressure) – Depends on outside temperature, but normally is between 80-105 PSI
Normal low side reading with AC on high speed and MAX & engine at 800-1000 RPM’s – Ranges from 25-35 PSI – Note that on many Chrysler products a normal reading on the low side may be 15-25 PSI
Normal high side reading ranges from 200-350 PSI
Don’t assume that if adding little Freon is good that adding a lot is better! Overcharging just a little can decrease the performance of the system and possibly damage the compressor.
With the AC on the coldest setting, use a thermometer in a middle vent. Normal vent temperature readings will vary depending on the (ambient) outside temp. The vent temperature should range from around 42-55 degrees in my experience. If normal gauge readings are obtained and the vent air is cold – STOP don’t overcharge the system. The only proper way to remove refrigerant is with a AC recovery machine so if this is being done at home I can’t emphasize enough not to over charge the system. And actually the best way to insure the proper charge is in a system, is to use an AC machine to recover the freon and then evacuate and recharge the system with the correct amount. Most cars have the specified amount on a decal under the hood.
Both low and high side readings are lower than normal, this indicates a cars AC system is low on refrigerant and is under-charged.
If both low and high side readings are too high, this indicates an overcharged system – too much refrigerant. This also can indicate that the condenser fan is not working, is too slow or the car is overheating and heat is transferring from the radiator to the condenser.
When the low side goes so low that it’s reading shows it is in a vacuum, the most likely cause is a bad expansion valve or blocked orifice tube. Another possibility is a restricted condenser. Blocked condensers are not as common as they used to be but if a compressor fails and comes apart inside the remnants can end up in the condenser causing it to restrict the flow of refrigerant.
When the compressor clutch is definitely engaged and the low side is high and the high side is low, the most likely cause is that the compressor is failing – it is not pumping sufficiently. Rarely an AC clutch could be slipping but usually this will be accompanied with a squeal or chirp. Also be sure not to overlook the obvious, like a loose belt
Note: The line going from the compressor to the condenser is the discharge line – it is normal for it to be very hot to the touch. The other line going from the drier or accumulator to the compressor is normally colder. The liquid line can be hot up to the point an orifice tube is in place. Just remember that LOW Pressure = COLD and HIGH Pressure = HOT.
If you do want to recharge the system your self, make sure you do not over charge and use the thermometer at the vent and when it's cold enough, turn off the valve from the recharge line and disconnect from the low pressure service port. Good luck

Nov 04, 2009 | 1994 Chevrolet C1500

1 Answer

Where is the low pressure value located so i can add freon into the compressor


look at the ac compressor and follow the large ac line/hose untill u come to the service port,,has it been retofitted for 134a? if not go to parts store and ask for a retro fit foe the low side,u will need to remove the sharader valve before installing the low side retro fit,,also purchase a charge hose

Jul 05, 2009 | 1991 Mercury Cougar

2 Answers

How do you convert the R-12 a/c to R134a for a 4.0L engine?


You don't. The oils for freon 12 and 134a are not compatable. There are substitutes for freon 12 out there. I belive on is called sure shot. There very resonably priced.

Jul 05, 2009 | 1992 Jeep Cherokee Sport

1 Answer

The a/c on my 2006 honda pilot is not owrking and appears to have a low refrigerant charge. I want to recharge it and find the leak with die. what is the amount of 134a to be fully charged


Adding freon or topping off a cars A/C system is the most common task performed to restore performance and get cold air blowing again. However, adding refrigerant isn’t always the solution for car air conditioning problems. There can be many other things wrong besides a system being low on refrigerant. To diagnose problems, an A/C manifold gauge set is needed to read high and low side pressure readings. Avoid adding refrigerant with a simple charging kit like the ones sold at parts stores. Don’t add any stop leak, this can cause problems in the compressor, expansion valve or condenser.
Keep in mind that using an A/C gauge set and seeing BOTH high and low side readings can help in diagnosing the problem when you know what to look for. First, on a 134A system the high and low side service ports are different sizes. AC gauge sets have color coded hoses, the blue color coded hose has a connection that fits on the low side service port and the red hose has a connection that will only fit onto the high side. The yellow hose won’t hook up to anything if just checking the readings; it can be used to connect to a vacuum pump or attached to a refrigerant can or tank.

*Make sure the condenser fan comes on when the readings are being checked.

Normal readings on high and low side with AC OFF (static pressure) - Depends on outside temperature, but normally is between 80-105 PSI
Normal low side reading with AC on high speed and MAX & engine at 800-1000 RPM’s - Ranges from 25-35 PSI - Note that on many Chrysler products a normal reading on the low side may be 15-25 PSI
Normal high side reading ranges from 200-350 PSI

Don’t assume that if adding little Freon is good that adding a lot is better!  Overcharging just a little can decrease the performance of the system and possibly damage the compressor.

With the AC on the coldest setting, use a thermometer in a middle vent. Normal vent temperature readings will vary depending on the (ambient) outside temp. The vent temperature should range from around 42-55 degrees in my experience. If normal gauge readings are obtained and the vent air is cold - STOP don’t overcharge the system. The only proper way to remove refrigerant is with a AC recovery machine so if this is being done at home I can’t emphasize enough not to over charge the system. And actually the best way to insure the proper charge is in a system, is to use an AC machine to recover the R143a and then evacuate and recharge the system with the correct amount. Most cars have the specified amount on a decal under the hood. 

Hope this helps. Keep me posted, be glad to help get you cooled again. 

Jul 01, 2009 | 2004 Honda Pilot

1 Answer

What kind of freon


R 134A is now the choice for freon use in autos. The "old stuff" R 12 has been banned for some time now. You car is new enough to have R 134A in it You should not have any problems in finding someone to check and recharge if nessary. Hope this helps. Moe

Apr 28, 2009 | 1996 Mercury Grand Marquis

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