Repairing Guides

how to auto air conditioning repair

by Dixie Lynch DVM Published 2 years ago Updated 2 years ago
image

Full Answer

How much does it cost to repair auto air conditioning?

This generally includes replacing a few parts like hoses, sensors, or either the compressor or condenser. CostHelper readers report paying $171-$727 for minor air conditioning repairs, at an average cost of $488. Extensive auto air conditioning repairs can cost $1,000-$4,000 or more, depending on make and model.

Do it yourself auto air conditioning repair?

  • Connect the leak detection can to the low side service port and spray it into the air conditioning system.
  • If you spot any leaks, you will need to take the vehicle to a repair shop to be fixed by a professional.
  • If you do not spot any leaks, the problem may simply be low refrigerant.

Do I need to service car air conditioning?

While servicing your car regularly is important for keeping it in reliable and roadworthy condition, services rarely cover the air-con system. Any garage should be able to perform a regas, though, with many companies charging in the region of £50.

How do you recharge a car air conditioner?

how do you recharge a car air conditioner? Recharge your AC in 7 easy steps: Materials Needed: Step 1: Turn on your AC. Step 2: Determine if AC compressor is engaging. Step 3: Test the pressure. Step 4: Attach the recharge hose from the kit. Step 5: Restart the vehicle and monitor the gauge. Step 6: Thread the refrigerant can onto the recharge ...

image

How do you fix air conditioning in a car?

1:2310:04HOW TO FIX YOUR CARS AIR CONDITIONER IN MINUTES!YouTubeStart of suggested clipEnd of suggested clipHere's how to tell which start the engine. And turn on the air conditioner. Next move the fanMoreHere's how to tell which start the engine. And turn on the air conditioner. Next move the fan setting from the highest to the lowest. As you can hear nothing it is a problem with the blower. Fan.

Can you repair AC yourself?

The short answer to these questions is that you shouldn't attempt any do-it-yourself fixes with a central air conditioner. The modern AC is an intricate piece of refrigeration equipment, and it takes years of training as well as specialized tools to handle even the most basic repairs.

Why is my car air conditioner not blowing cold air?

The most common cause of a vehicle's air conditioner not getting cold enough is that it needs to be recharged. You can recharge your refrigerant by yourself, but to save time and make sure the job is done correctly you should make an appointment with your local professional auto shop.

How do you diagnose auto air conditioning problems?

How to Diagnose Your Car's Air Conditioner Using A/C ProStep 1: Start the engine and turn the A/C on maximum. Make sure the fan is on its highest setting and the temperature is at its coldest setting.Step 2: Look to see if the A/C compressor is running. ... Step 3: Check the pressure with the A/C Pro gauge.

What is the most common AC Repair?

The 10 Most Common Air Conditioning RepairsReplace Air Filters. ... Replace the Thermostat. ... Repair The Defrost Control. ... Empty The Condensation Drain. ... Replace The Condenser Fan. ... Replace or Fix Compressor. ... Clean The Coils. ... Replace Capacitors. Capacitors help various motors in your air conditioner system to start and run.More items...•

How do I know if my car AC compressor is bad?

Four Signs Your Car's AC Compressor Is Going BadOdd Sounds. You might hear some strange noises when you flip on your vehicle's air conditioner and if you do, it's probably the compressor. ... Hot Air. The whole point of turning on your vehicle's AC is to get cold air to come through the vents. ... Fluid Leaks. ... Stuck Clutch.

What are common problems with car air conditioners?

The six most common car A/C issues are:Leaking refrigerant.Blocked/clogged condenser.Broken condenser.Electrical issues.Faulty cooling fans.Bad compressor.

How do you fix an air conditioner that is not cold?

The following are a few things to check when your air conditioner is not cooling your space.Check and reset the thermostat. ... Replace the dirty filter. ... Clear the clogged condensation drain. ... Try to diagnose duct malfunctions. ... Clear the area around the compressor.

Why is my central AC running but not blowing air?

If your air handler is running but not blowing air, there are two likely scenarios; either a broken AC blower belt or an issue with the motor itself. If the air handler is humming or buzzing, but not making the mechanical sounds of a motor running, you're most likely talking about an issue with the motor itself.

How to check if your car has low Freon?

1. Replace thermostat 2. Set to driving condition 3. Check for excessive duct hose length, kink or bend. If you can't get your a/c to turn on then use this chart to determine if you are low on freon. Remember that this is a general char and will very for different makes and model cars and refrigeration units.

How to speed up a car's refill?

If you want to speed up the refill process then dump the can in some warm water or heat it with a hair drier. Do not use heat guns, gas burners or boiling hot water. Once there is some pressure some pressure in the system, turn on the engine and the a/c fan to max.

Where is the A/C condenser located?

When running the car at idle to check the freon level it is a good idea to have a water hose handy and spray water on the a/c condencer. The condencer is located in front of the radiator.

What is the PSI of a R134A?

You can also use this good rule of thumb with R134a, run fan on High with all windows open and engine at 1500 rpm. High side pressure in PSI should be about 2.2 to 2.5 times outside air temperature in degrees F. Example if it's 90 degrees F, high side should be no higher than 225PSI.

When installing a new drier, do you drain the oil?

This should be done right before vacuuming, since the drier will become useless ofter two hour or so of being in the open. Now it is time to pull a vacuum.

Can you fill a can of Freon with UV dye?

NEVER fill through the high pressure side as tough this may cause the can to explode. If you are adding a can of Freon with UV dye or oil you need to have the can upside down. This will cause liquid instead of gas to come out; you should open the low side valve just a little bit in order to have a little bit flowing.

Why is my car's AC not working?

To identify the problem, start the car and turn on the AC. Locate the compressor and check if it is running (it produces a humming noise). If it is not working, then the possible reasons could be blown fuse, broken wires, switch problems or low level of refrigerants. Check for any of these conditions, fix it and then re-check the compressor again.

Why does my clutch make a cluck sound?

Another possible reason can be bad wiring. Compressors have a wire leading to the electric clutch. Unplug the connector in that wire and connect the wire to the positive pole of the car battery. If you hear a ‘cluck’ sound, then the clutch is fine and other wires and fuses have to be checked.

How To Repair Car’s/RVs ACs?

An automotive air conditioner also generally requires a trained, certified (EPA 609) technician. The biggest difference is that you can go to them, saving you money and time. However, before you drive to a mechanic, there are a couple of things you can check yourself.

How To Repair Portable ACs?

The biggest difference between a window unit and a portable air conditioner is that the unit is actually in your room instead of sitting on the window sill. The unit itself uses the same technology, containing smaller components inside a compact shell.

Why does my air conditioner fail?

The other most common issues with automotive air conditioner failure are due to leaks in the refrigerant lines, bad seals, or a worn compressor clutch. All of these issues require a trained and licensed professional to diagnose, locate (for leaks), and repair.

Why does my Lennox air conditioner lose airflow?

After installing a Lennox air conditioner, the biggest consumer complaint is that the system loses airflow. However, this generally goes beyond a dirty or clogged air filter (though you should always check this first). The largest reason this occurs is that the system is improperly installed.

What does it mean when your AC is broken?

Your AC is considered broken when it no longer produces cold or hot air into the home. Even if the system comes on, if the airflow isn’t high enough, the temperature isn’t right, or the system doesn’t move air at all, it is broken.

What are the problems with air conditioners?

The Most Basic Problems of Air Conditioners. With residential air conditioners, there are a lot of moving parts. There are electrical and mechanical components, refrigerants, and a lot of copper tubing. Something can go wrong at any time.

Where is the cabin air filter located?

Almost every car made after 2001 comes with a cabin air filter (many older models do, too). This filter is located under the dash or behind the glove box that filters the air from the AC system. When this filter becomes clogged, it can prevent the cold air from accessing the vents.

How much does it cost to recharge an air conditioner?

Depending on the garage, it might be anywhere from $50 to $150. When you take your car in, you're paying for parts and labor. The cost will depend on the garage and the length of time the repair takes.

Why does my air conditioner smell bad?

Foul Smell. If your air conditioner is emitting a bad smell, it often means that there's mold or mildew built up within the system. It may also mean that the filter needs to be changed.

Why is it so frustrating to have a mechanic check your car?

Sometimes you can have a problem that comes and goes. These can be the most frustrating because a mechanic will often tell you there's no problem. The mechanic needs to experience the issue when he/she checks the car. They need to recreate the issue in order to diagnose and fix it.

What happens if you leave a car unchecked?

Some issues, when left unchecked, can cause damage in other areas. So finding out about them and fixing them early can mean a less expensive repair. If it’s already too late, and your car is in need of a pricey repair, check to see what your car is worth before writing that big check.

Why is my air flow so strong?

The air flow is as strong but the air isn't as cool. This is often caused by a leak, but it can also be caused by clogs or damaged parts, such as the condenser, blower, or compressor. A leak by itself is often easy to fix and not very expensive.

Can you repair your car's A/C?

For example, recharging your car's A/C can be accomplished easily and with minimal cost. You should still make sure that the rest of the system is running optimally, though. Sometimes your car just needs a recharge, but sometimes it's losing refrigerant because there's a leak which should be repaired. If you're exceptionally handy, you might also be able to check and change a blown fuse or change the air filter for the cabin.

Can you know what parts are in your A/C?

If you're not especially knowledgeable about cars, you may not know what parts are incorporated in your A/C system. This can make diagnosing issues fairly difficult, nigh on impossible without expert help. A lot of car owners get nervous that they're paying too much for repairs simply because they don't really understand the system.

How to fill a car with refrigerant?

Turn the valve on the can till it opens the seal. The refrigerant will be released as soon as the seal breaks. Keep holding the can upright as the refrigerant passes through. Keep a check on the ambient pressure as the gauge indicates it. Keep filling till the pressure on the gauge is full. If there are any leaks on the line, you will be able to spot them easily. If that is the case, you will need to take your car to the mechanic. If not, simply close the cap when the refrigerant is filled. You’re car A/C is back with perfect cooling.

What air conditioning system does a 1995 car use?

All cars built after 1995 use R134a. The older ones use 12. If your car belongs to the latter, you need to take your car to a professional. The most important thing about automotive air conditioning is temperature. You need to check the ambient temperature with a thermometer.

How to check if compressor is working?

Most compressors are connected to the clutch with a wire. Find the connector (likely in the middle) and unplug. Check it for current with your battery. If there is no current, it will need to be replaced. That will need some specialized service.

Why is my car not cooling?

As you start the car and turn the air conditioner to the highest notch, determine how warm the air is. It could even be cool but not as cold as it should be. In this case, the problem may lie in air flow. It can be normalized by replacing the cabin air filter of your car.

Can you drive a car without an air conditioner?

It’s almost cruel to even think of a driving your car without an air conditioner in the scorching summer. With the wear and tear that your car goes through every day, it is common to see problems in the air conditioner. While most of us end up spending dollars on fixing it, there is something simpler you can do. You can fix it with some basic automotive air conditioning repair at home, saving yourself the expense of going to a car mechanic. The hack is simple to carry out, whether you own a hatchback or a sedan. Yes, here is what you can do when your car air conditioner is broken.

Can you hack a car air conditioner?

The hack is simple to carry out, whether you own a hatchback or a sedan. Yes, here is what you can do when your car air conditioner is broken.

Can you fix an air conditioner at home?

The hack is simple to carry out, whether you own a hatchback or a sedan. Yes , here is what you can do when your car air ...

How much does it cost to fix a car air conditioner leak?

Following repair of the leak, the refrigerant must then be replaced, or recharged. The cost for this at a service station ranges from $250-$400.

Why is air conditioning important in a car?

Car air conditioning is the single most important system dedicated not to the operation of the vehicle, but to the comfort of the individuals inside. Basically every other system—engine, fuel, electrical, cooling, exhaust, drive train, braking, suspension and ignition—contributes to the functioning of the vehicle itself. A car or truck without one of these systems wouldn’t work.

What is the substance that flows through an air conditioning system to absorb and release heat called?

Until 1995, this was the inert gas freon, sometimes known as R12 refrigerant . Upon discovering freon emissions were contributing to the destruction of the Earth’s ozone layer, which protects its inhabitants from the sun’s most harmful UV rays, the federal government banned use of R12 refrigerant in new cars. Today most vehicles use its replacement, R134a refrigerant.

Why is refrigerant not a solid?

This is because the refrigerant will be subject to extreme cold and must be able to flow through the system. Compressor: The compressor is the only mechanical component in the air conditioning system.

How does a car A/C compressor work?

The compressor then pumps the refrigerant gas through hoses and into the condenser. Condenser: The car A/C condenser receives refrigerant gas under high pressure from the compressor and exposes it to significantly lower outside temperatures , much the same way a radiator exposes engine coolant to atmospheric temperature.

What refrigerant is used in air conditioning?

Today most vehicles use its replacement, R134a refrigerant. Refrigerant must have certain qualities to work in an air conditioning system. It must absorb and release heat easily and have a very low freezing point. In other words, it cannot turn into a solid, like water does, at temperatures near 32 degrees Fahrenheit.

What is the purpose of air conditioning in a car?

Like most automobile systems, the air conditioning system is a complex series of motors, belts, hoses and fluid generating pressure and heat to serve its function in the automobile. Unlike other systems, its function is to remove heat and humidity from the passenger compartment and blow cooler air into it. These are the main components of a car ...

Who Should You Have Repair Your Car’s AC System?

But you shouldn’t trust just anyone to work on your car’s AC system if you can help it.

What Are the Auto AC Repair Costs?

Prior to taking your car to a mechanic so that they can perform auto AC repairs for you, it would be smart to find out about what the different auto AC repair costs might be. It’ll help you avoid finding yourself in a spot where you’re shocked by how much it’s going to cost to fix your car’s AC system.

What Are the Main Parts of an Auto AC System?

Before we dive headfirst into talking about how to repair the AC system in a car and the auto AC repair costs, it’s important for you to know about all the different parts contained in your car’s AC system. This will help you understand what’s going on when you take your car to a shop to have your AC system worked on. It’ll also help you make sense of the auto AC repair costs you might face.

How Long Do the Parts in an Auto AC System Last?

This goes for all parts, but it’s especially true for the parts found in an auto AC system. You should learn about how long they’ll last so that you’re not shocked when you have to pay the auto AC repair costs one day.

What Are the Signs That Show an Auto AC System Needs to Be Repaired?

If, for example, your car only sends out warm air when you have your AC turned on, that’s a pretty clear-cut sign that you need to schedule auto AC repairs and prepare to pay the auto AC repair costs that come along with them.

Why Is Auto AC Repair So Expensive?

Far too often, people don’t know what the auto AC repair costs are and struggle to make sense of things when a mechanic tells them how much it’s going to cost to fix their car’s AC system. They can’t believe that they’re going to have to pay hundreds and possibly even thousands of dollars just to get the air in their car to blow cold again.

Is It Worth Fixing the AC in My Car?

If you just discovered that your car is in need of some serious AC repairs and you’re staring down the barrel of the auto AC repair costs right now, you might not know what to do. Is it really worth paying all that money to fix your car’s AC system? The answer is…it all depends.

image

Step 1 – Check For Any Leaks

  • Add the fluorescent dye to the system and turn on the AC. Wait for few minutes and check for coloring in the coils. If there is a leakage, the dye will make it apparent and then you can get it fixed by a qualified technician or do it yourself.
See more on doityourself.com

Step 2 – Level of Refrigerants

  • Freon is used as refrigerant in the auto air conditioning system. It is a combination of gas and liquid that is compressed and circulated for cooling the air. To check the level and pressure of Freon, attach the pressure gauge to the compressor hose, start the AC system and take the readings. If any one of the measures is below normal, then Freon 134A has to be refilled. Due to …
See more on doityourself.com

Step 3 – Clogged Condenser

  • Check for the status of the condenser, if it is clogged then the cooling fan closer to it cannot turn on thereby reducing the cooling effect. Clean the condenser with duster to restore the cooling capacity.
See more on doityourself.com

Step 4 – Compressor Problems

  • Compressor is the heart of an auto air conditioning system. In most of the cases, problems with compressor result in inefficient auto air conditioner. To identify the problem, start the car and turn on the AC. Locate the compressor and check if it is running (it produces a humming noise). If it is not working, then the possible reasons could be blown fuse, broken wires, switch problems or lo…
See more on doityourself.com

Step 5 - Other Common Problems

  • At times, the belt of the fan (attached to the compressor and another in front of radiator) could be snapped and so the auto air conditioner might not be working. This is easy to fix and can be done by you. Another possible reason can be bad wiring. Compressors have a wire leading to the electric clutch. Unplug the connector in that wire and connect the wire to the positive pole of the …
See more on doityourself.com

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9