COuld be just the clutch not grabbing from wear and noise from it too. But the R4 compressors are not real reliable. And for those with serpentine from a camaro or caprice use the compressor from a later truck or burb cause it has a smaller pulley and spins faster hence moves more refrigerant and just works better for colder air especially at idle. Now for compressors and GM parts check here. SOme great deals. http://www.oem-surplus.com/gmwp/chevrolet.htm Robert Adams On Thu, Jul 1, 2010 at 12:39 PM, Ray Buck <rbuck@xxxxxxxxxxxx> wrote: > If it's not one thing it's another. The Burb's A/C compressor clutch is > makin one hell of a racket (squealing, scraping) when it engages. It's > worst when it first fires up, then makes a little noise as it re-engages > periodically. Not nearly as much after it's been run for a while. > > My guess is that I'm gonna need a new compressor...unless someone has > something up their sleeve. > > Ideas would be appreciated. > > r > > -- > Sent from my Dreadnought using that barely tolerable Thunderbird email program > >