AC compressor knocking noise when turned on, noticeable only at ...

If, on inspection, you hear chattering, whining, squealing, chirping, or rattling sounds coming from the AC compressor, it is time for AC service. Sometimes the commotion only erupts when you engage the AC switch. Some noises remain constant. Compre

6. Use Sound-Dampening Material · Insulation: Apply sound-dampening material or insulation around the compressor to reduce noise transmission.

Loud whining sounds from a compressor often mean there's an internal pressure problem. If enough pressure is released from the compressor, it might sound more ...

The noise you are hearing is likely coming from a bad bearing in the compressor. The bearing is a small, round part that helps to rotate the compressor shaft.

It sounds like either your compressor is seized, or you are not drawing enough air through the condenser ahead of the radiator or belt is loose.

A noisy compressor could be caused by a faulty pulley/clutch bearing, or it could be a faulty compressor.

Could be the clutch in the compressor is loose or has a loose bolt. Like on the front of the pully there. Check that out. Also I find when ...

Rumble, growl or rattle sometimes with accompanying hose pulsation- Check for refrigerant over charge or air inside the A/C system or an obstructed condenser.

One common cause is a loose or worn serpentine belt. This component often drives the A/C compressor, and if it isn't functioning as it should, ...

Comments234 · 8 Top Noises Your Car Engine Makes and How To Fix- Grind, Clunk, Squeal, Click, Groan, Rattle · 3 SYMPTOMS OF A BAD AC COMPRESSOR.