Car AC compressor is an important part of the air conditioning system. It helps to circulate the refrigerant in the system and maintain the proper pressure.
If the compressor is not working properly, it can cause the system to overheat and break down.
There are a few things that can cause the car AC compressor to fail. One is if the refrigerant level is low. This can happen if there is a leak in the system.
Another reason could be a blockage in the lines or an issue with the pump. If you notice that your car’s air conditioner is not working as well as it used to, it is important to have it checked by a mechanic to see if the compressor is the problem.
What Is Car AC Compressor and How It Works
Car AC compressors are devices that help to circulate the refrigerant in a car’s air conditioning system. The compressor is responsible for drawing in the refrigerant from the evaporator and then pumping it back into the condenser.
In order to function properly, the compressor must be filled with enough oil to lubricate its moving parts. If the compressor is not properly lubricated, it can overheat and fail. When this happens, the entire air conditioning system will be rendered useless.
There are two types of compressors that can be found in most cars – the scroll type and the reciprocating type.
The scroll type is more efficient than the reciprocating type, but it is also more expensive. The reciprocating type is less expensive but it is not as efficient.
The compressor is usually located near the engine, where it can be easily accessible for maintenance. In order to avoid damaging the compressor, it is important to make sure that no foreign objects enter the unit.
This includes things like dirt, dust, or even water. If any of these things get into the compressor, they can damage the moving parts and cause the unit to fail.
Scroll Type AC Compressor
The scroll type AC compressor is a common type of air conditioner compressor. It uses two scroll-type blades to compress the refrigerant. The blades are similar to those found in a centrifugal pump.
As a scroll type AC compressor uses two cylinders, one is called the high side cylinder and the other is called the low side cylinder. The crankshaft of the compressor is connected to a drive pulley, which in turn is connected to an engine or electric motor by a belt. As the crankshaft rotates, this drives the pistons up and down in their cylinders.
The low side piston draws in refrigerant gas from the evaporator through a suction valve at the bottom of its cylinder. As the low side piston rises, it compresses this refrigerant gas and forces it into the high side cylinder where it is further compressed by the high side piston.
This high pressure gas is then forced out of the compressor through a discharge valve and into the condenser where it is cooled and condensed back into liquid form. From the condenser the refrigerant passes through an expansion valve into the evaporator where it absorbs heat from the air passing over it and returns to gas form.
The main advantage of the scroll type AC compressor is that it is much quieter than other types of compressors. Additionally, it is more efficient and has a lower risk of failure than other types of compressors. Scroll type AC compressors are also less likely to cause vibration and noise when they are operating.
Reciprocating AC Compressors
A reciprocating type AC compressor is a device that uses a piston to compress air and then push it into the system.
These types of compressors are commonly used in air conditioning systems and refrigeration units. The compressor works by drawing air into the cylinder where it is compressed by the piston. This compressed air is then pushed through an outlet valve and into the system.
Reciprocating type AC compressors are typically quieter than other types of compressors and are often used in residential air conditioning units. They are also less expensive to operate than other types of compressors. However, they can be less durable and may require more maintenance than other types of compressors.
Signs of Bad AC Compressor in My Car
If your car’s air conditioning isn’t working as well as it used to, there could be a problem with the compressor. Here are signs that indicate your AC compressor may be failing:
- The AC system does not blow as cold as it used to.
- The AC system does not turn on at all.
- You hear a clicking noise coming from the AC compressor.
- The check engine light is on.
- There is an oily residue on the AC compressor.
- The AC system smells strange.
- The AC system is making strange noises.
- The AC system is leaking refrigerant.
High Temperature In Cabin
One of the most common and easily detectable signs of a bad AC compressor is when the temperature in your car’s cabin starts to rise.
This is usually accompanied by reduced airflow from the vents, as well as increased noise from the compressor itself. If you notice any of these symptoms, it’s best to have your compressor checked by a professional as soon as possible.
Decreased Airflow From Vents
Another symptom of a bad AC compressor is decreased airflow from your car’s vents. This can be caused by various factors, such as a clogged filter or an obstruction in the compressor itself.
If you notice that the airflow from your vents has decreased, it’s important to have your compressor checked as soon as possible.
Increased Noise From Compressor
If you notice that your AC compressor is making more noise than usual, this could be another sign that something is wrong. In some cases, the increased noise may be due to a loose belt or pulley.
However, it could also be indicative of a more serious problem, such as a cracked housing or damaged bearings. If you hear any unusual noises coming from your compressor, it’s best to have it checked by a professional.
One of the most common signs that your AC compressor is failing is when your car starts blowing warm air, even when the AC is turned on.
This is usually accompanied by strange noises coming from the compressor itself. If you notice either of these issues, it’s important to take your car to a mechanic as soon as possible to have the problem diagnosed and repaired.
AC System Smells Strange
One of the most common signs that your AC compressor is going bad is if the system starts to emit strange smells. If you notice a burning smell coming from your vents, it’s likely that your compressor is overworking and overheating.
Similarly, if you smell something sweet or sugary, it could be a sign of refrigerant leaking from the system. In either case, it’s best to have a professional inspect your AC system as soon as possible.
Hi I’m Marshall based in 1478 Doctors Drive Santa Monica, CA. I’m your DIY Car Repairman with more than 5 years experience in automobile repair, a skill I learned from my old man.
I started this blog to share my experience on both simple and technical aspects of your car.