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The air conditioning is not working properly. does it need freon?

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It could be the air condition compressor belt not necessary the freon

Posted on May 29, 2011

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Air conditioning does not blow cold air even after flushing with Freon can. 2008 Aveo. What can be do at minimal cost? Low income.


There may be too much Freon in it, a leak, AC fan not engaging, ac controls not working properly. Many poss. Have it ckd professionally

Feb 18, 2017 | 2008 Chevrolet Aveo

1 Answer

Air condition


If you've never worked on an air conditioning system before, I would recommend you take it to a shop and get it checked out.
If the system is low on freon, you have a leak that would need to be fixed to keep any freon you add from leaking back out. And it could have an electrical problem instead of being low on freon.
Freon gas is minus 35 degrees when it comes out of the can.

Jun 07, 2013 | 1996 Jeep Grand Cherokee

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Air conditioning not too cold ??


Hello,
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Let me explain in layman's terms how the air conditioning (AC) system works and what could be happening to your car.

Like your body, the air conditioning compressor is the heart of the AC system, and Freon is the blood. The compressor pumps Freon throughout the AC system, either the older type R12 which costs as much as gold it seems these days, or the new environmentally-friendly R134A Freon. This Freon is a gas and liquid combination that is compressed and circulated throughout the air conditioning system. The compressed Freon is pushed through the system under pressure and is passed through different sized metal and rubber hoses and a special valve called an expansion valve that cause the gas to expand and contract.

This expansion and contraction makes the Freon gas very cold. This cold gas makes its way via metal lines into the dash area of your vehicle to the evaporator core. This evaporator core is like a small radiator, except it has cold Freon circulating inside and not hot antifreeze. A small fan (the AC blower fan which you control from the control panel on the dash) sits in front of the evaporator core and blows air across this cold evaporator and then through the vents inside your vehicle.

The other objective of the air conditioning system is to remove the heat from inside the cab of the vehicle. This heat is removed by the Freon with the help of the AC condenser located at the front of the car (usually in front of the radiator). The Freon coming back from the evaporator carries the heat from the cab to the condenser via rubber and metal hoses. Just like your radiator, the condenser is lightweight aluminum with many internal winding coils.
The Freon travels through these coils, and in between these coils are small slits or fins that the Freon is forced through. The condenser will have an electric cooling fan mounted in front or behind it to push or pull air through these fins to remove the heat from the Freon. Some vehicles still use the old fashioned fan blade driven by the engine to pull air across the radiator and the condenser.
Now I know that is just a tidbit of information on how the air conditioning system works, and it is very general, but I wanted you to know what to look for to give you insight as to what might be happening with your vehicle.
A few causes of low cooling efficiency or no cooling at all at idle are:

Lack of air flow across the condenser. Make sure the electric cooling fan motor near the condenser is coming on, or in models that are equipped with a fan blade make sure this fan is turning and is turning very fast.

Low Freon levels. Freon level and pressure should be checked by your certified air conditioning mechanic.

Overheating. If the engine is running hot or overheating, it can have a noticeable negative affect on the air conditioning system. Some cars have two electric cooling fans, one for the air conditioning condenser and the other for the radiator. Make sure they are both working properly. Usually at idle on a hot day with the AC on both fans will be on.

When the vehicle is traveling at freeway speeds, the compressor is pumping the Freon throughout the system much faster and harder than at idle. There is a dramatic increase in air flow across the condenser due to 55 mph winds, and the engine is usually operating at a cooler, more efficient temperature as well, thus allowing the air conditioning system to operate efficiently.
Note: An air conditioning system that is somewhat low on Freon can still feel comfortable at freeway speeds due to the added air flow across the condenser which can overcome the ill effects of slightly low Freon. Periodic air conditioning performance checks by your mechanic are the best way to keep the system in great shape.

Hope this helps.

Goodluck

Oct 08, 2010 | 1998 Cadillac DeVille

1 Answer

Where is the freon tank


There isn't a tank, and it's not "freon". The refrigerant in your air conditioning system is either R-12 or R-134a, most likely. It's a compressed system that is in constant flow when the pump is operating, so if you need to add or charge refrigerant, you do it through the low-pressure port on the air conditioning lines. The recharge kit will only work on one of the fittings, so short of not using the kit properly, you can't mess it up.

Jun 27, 2010 | 1989 Mitsubishi Mirage

1 Answer

Air condition not working. Only hot air coming outwhen I press au


either the restrictor valve is a bit blocked ,or it needs regassing properly with a proper machine and the gas weighed in properly

Sep 20, 2009 | 1998 Mercury Grand Marquis

1 Answer

Air condition blows hot air but it has freon


You may have created an over charged condition and at this point the a/c compressor will cut off on high head pressures. This can be verified by installing gauges to the systems high and low side service taps and reading the pressures.An overcharged system will start the compressor briefly but soon cuts off once pressure goes to 350 - 400 lbs on the high side. Acceptable pressures for this system should be no greater than 250 high and low suction should drop to 40-50 psi.You might recover the charge and evacuate the system,then try bringing the charge back to proper level.A sight glass in the reciever drier really helps determining proper fill.Once all bubbles have dissipated from the sight glass during charging ,one should stop at that point to avoid overfilling.Too much freon is worse than a low charge especially in hot ambient conditions....

Aug 26, 2009 | 2003 Saturn ION

1 Answer

1998 Cadillac sts. The air conditioning blows


YOU HAVE ADD THE WRONG FREON ALL CARS MADE AFTER 1996 USES R/134. FLUSH THE SYSTEM, ALSO CHECK THE BLOWER FAN FOR DEBRIS

Jul 18, 2009 | 1998 Cadillac DeVille

1 Answer

A/c blowing hot air but it has freon in it.


is the compressor working and pressurizing the freon --- is there air in the system along with the freon preventing the system from circulating --- is the heater control or vent closing --- are the evaporator coils/fins clogged or dirty -- are the air conditioning selector controls properly actuating vents for mixing inside and outside air and closing off heatter vents --- need more investigation on your part

Jun 22, 2009 | 1993 Jeep Cherokee Country

1 Answer

Air Conditioniong not working


U may be low in Freon gas.
When Freon is low there's low pressure switch that will prevent A/C compressor clutch from engaging to protect it from failure.
So, first check Freon pressure & any leaks form lines & hoses fittings.
Even if the fan is working, that doesn’t indicate proper compressor OP'S.
Look at the compressor front side you'll see the clutch stationary while the AFT pulley moving.

Then put air-condition compressor switch to ON (Engage),
You should see the clutch engage & start rotate,
If NOT, this is very clear indication u r low in Freon.

Regards;
MAR

Jun 03, 2009 | 2003 Dodge Caravan

1 Answer

What can i do about air conditioner not blowing cold air


It could be the air conditioner pump or maybe the freon needs to be replaced in the air conditioning unit. You should definately bring it somewhere and have it looked at. You don't want to mess with freon at home. It has to be disposed of properly.

Apr 26, 2009 | 1995 Lexus ES 300

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