What is a clutch compressor?
The clutch on the compressor is what allows the pulley to engage and disengage from engine power so that the compressor is only turning when it needs to be. The clutch can seize, which permanently keeps the compressor activated; or it can break, which means the compressor will not be able to receive engine power.
What does a compressor clutch do in a car?
A car AC compressor clutch is used to connect and disconnect drive power to the car’s AC compressor shaft. Unlike a car’s transmission clutch, an AC compressor clutch is either transmitting full drive power to the AC compressor or not—it’s not supposed to provide partial power.
How can I Check my AC compressor clutch?
That results in slipping, screeching and poor cooling. To check AC compressor clutch air gap, simply insert a feeler gauge between the clutch plate and pulley with the engine off. Compare the reading to factory specifications. If the air gap is too wide, you may be able to correct it by using a different spacing washer.
What is the relay for the AC compressor?
No cold air Almost every single electrical system on a car is powered through some kind of switch or electrical relay, and the AC system and compressor are no exception. The AC compressor relay is responsible for supplying power to the AC compressor and clutch.
How does an AC compressor drive belt work?
The AC compressor drive belt rotates the compressor pulley at all times when the engine is running. But the pulley will not rotate the AC compressor shaft unless the compressor clutch has engaged. How does an AC compressor clutch work?
A car AC compressor clutch is used to connect and disconnect drive power to the car’s AC compressor shaft. Unlike a car’s transmission clutch, an AC compressor clutch is either transmitting full drive power to the AC compressor or not—it’s not supposed to provide partial power.
How to manually engage AC compressor clutch, the easiest?
There is no need to switch on the air conditioning system for this method to work. Tips – You should route the jumper wire to avoid it getting tangled or interfering with other moving components. It is an ominous sign when the clutch engages but the compressor does not spin. Changing the compressor clutch could be the only solution in this case.
When does the AC compressor clutch spin freely?
Should AC Compressor Clutch Spin Freely? The AC compressor clutch can spin freely when fully disengaged. It will also spin freely when the compressor and the pulley are engaged. However, if the AC compressor clutch spins freely every time, and the compressor fails to turn on, it is an indicator that it is not engaging, and it required replacement.
How to tell if the clutch or the AC compressor is bad?
Place a mechanic’s stethoscope probe on the top of the non-moving part of the clutch while the engine idles. Have your assistant turn on the AC controls to maximum. Listen for any internal buzzing or clicking from the clutch.