Date: Thu, 28 Sep 2000 13:31:00 -0700 From: Johannes H Andersen <johannes.andersennopsamel.ac.uk> Subject: Re: Solve this Master Tech
OK, thanks Tech Master for reply. But the chirping noise I'm talking about is when the A/C is switched off! I only need to switch the A/C on during summer months, but it cools fine and the difference in load on the engine can be felt. How long can I expect the pump to last ? It also seem odd to me that there are no lubrication requirements, yet the unit seem to wear out. Ask The MasterTech wrote: > > Hi Johannes, > One of two things. Either the A/C system is overfilled making the compressor > overwork or the compressor is beginning to fail inside. Compressor failures > on Saab (as with many other cars) are a very common failure because most > people tend to leave them on all the time inadvertently.Hopefully this will > help. TW <johsnopsamsafish.com> wrote in message > news:39D2626D.EBB8FEC2nopsamsafish.com... > > On my Saab 9000 CSE 1993 75000 miles, the A/C pump wheel emits a noise > > (A/C off) which one normally would associate with lack of lubrication. > > The noise is not audible inside the car, but it worries me if the unit > > is about to fail. I asked the Saab dealer about it, he said there are > > no lubrication points or requirements for this unit. A replacement pump > > would cost around £500 ! This is a lot of money for a bit of cold air. > > What should I do now ? > > > > Johannes