There are many other potential sources of the noise as well.
Noisy air conditioner compressor clutch.
The compressor clutch pressurizes your ac and pumps refrigerant through the system.
That in simple detail describes how the system works.
According to denso 99 9 of all compressor problems are not related to product failure but from a poor understanding of a c system operation maintenance and repair.
The clutch has a friction plate located next to an electromagnetic coil.
In addition to the ac compressor clutch we also.
Car a c compressor ac system components failure.
These typically start when your ac compressor.
The compressor works only when it is engaged to the engine and that engagement is through the air conditioner clutch.
The compressor clutch is a high wear item and if it s worn out it can create a rattle during operation.
When the vehicle is turned off or the air conditioning compressor clutch is disengaged the system will equalize the pressure.
To run this compressor the car s engine is directly connected to the pump rotor of the compressor with a belt.
But the loud noise when the ac switches on is another potential symptoms of bad ac compressor.
The hissing sound is the freon from the high pressure side slowly feeding into the low pressure side and this is completely normal.
A rattling could indicate it s time to replace your worn out compressor clutch and maybe even the entire ac compressor.
Normally you should hear or feel nothing when the air conditioner is working except the cold air coming from your car s heating cooling ducts.
The clutch drives the compressor which sends refrigerant to the evaporator where refrigerant gets condensed.
The refrigerant travels though the lines and is cooled by the radiator.
Automotive air conditioning system uses an electromagnetic clutch mechanism that engages the compressor to turn the ac unit.
Some vehicles can have only the clutch replaced but some require replacement of both the clutch and compressor.
The air conditioning system on a vehicle has a number of components that work in concert with each other to deliver cool air to the passenger cabin.
If any of the interior components break or the compressor s internal bearings fail or seize then all sorts of noises can be produced as a result.
This one starts out as a noise diagnosis that ends up working in an ac clutch repair on a 1998 acura 3 2 tl.
Another good air conditioning noise is the roar of the condenser fan.
The ac compressor has several interior components and uses a sealed bearing to turn.
Auto ac compressor clutch assembly air conditioning compressor bearing.