Aircon compressor whine after a hard run

[DaveyLC]

If it didn't do it before and from what you said started after a brisk drive, I would check again after the car had an overnight rest.

Could be as simple as a re-gas as named symptom seem to be related to heat build up and lack of lubrication.

This morning it was silent! Fingers crossed a gas and some service oil will stop it from happening again :|

[Mike 260]

I took a friend out earlier for a 'brisk' drive, I stopped for a bit and the fan had cut in so I let the car cool down before turning it off. When I restated there was a distinctive whine constant with engine speed, I popped the bonnet and noticed it was coming from the A/C compressor, when I switch off the A/C (econ) the noise is gone.

I've not noticed any other issues with the A/C or fans.

Any ideas?

Cheers guys!

I have a spare compressor of an engine that threw a rod with 22k on the clock.

I also have avalable loads of other parts.

Mike.

[DaveyLC]

Strangely I've not had any problems since that evening I was giving it "billy big balls".. I'm having the system flushed, gassed and oiled on the weekend though.

[Malcolmr]

I'm having the system flushed, gassed and oiled on the weekend though.

These two photos show the result of the flushing of my system after the compressor had seized. The flushing liquid is Shellite and is suitably murky when stirred up. You can see the pile of iron filings settled in the bottom of the beaker in the second photo if you look closely enough. This is what the first garage failed to remove so it is no wonder the replacement compressor died with all that ironmongery running in the refrigerant.