Date: Thu, 1 Jul 1999 11:40:35 +0200
From: "IZZO" <IZZET3nopsamAIL.COM>
Subject: Re: Noise in AC and Front suspention


scot, i have a '98 900 SE turbo .... and unfortunately have EXACTLY the same problems..... my Swiss (not known as good mechanics) dealer said that these problems were *ahem* normal. After i made many complaints they installed a modified piece sent by SAAB headquarters to the front struts (dont ask what or where) and the noise although reduced quite a bit is still there. concerning the AC... aside from the famous clunk which changes in loudness due to outside temparature.... i also have a occasional intermittent (every 2-3 minutes) hissing sound when AC is engaged. Still no comments on that one from the dealer aside from it's normal. anyway, otherwise everything else runs great.... love the motor! regards izzo Anders Johansson <sigurdnopsamnet.se> wrote in message news:7l85du$svr$1nopsamcola.tninet.se... > > > I have a 97 900SE Turbo. Im going in for my last visit to the > >dealer before the 50K Warrantee is over. But I have two annoying issues > >with the car. > >2) When the Air conditioning turns on and off, there is a clunk and a > >strain on the Engine, Seems a little too loud to be normal. I just got > >the car 15K ago, not sure if this is typical of such an expensive car. > >The first two times I bought it in they never heard the sound. The > >third time they found gas in the vacuums canister. Said I must have > >filled the car while running it???? They thought that they had fixed > >it..... Nope. could anyone please help with either of these issues. > >Email would be great. But I do try to read this news group often. > > > >thanks > >scot > >'97 900SE Turbo. > Scot, > > concerning the noise when the air-conditioning turns on and off. > When the magnetic cluth is engaged it is normal with a clicking noise. > If the noise is getting louder and louder I would guess that something > is wrong. A good way of repeating the noise is to be parked in some > +20 C ambient and pressing the 'econ' button several times. > Econ means no AC (copressor off). When the AC is engaged the load on the > motor > increases dramaticlly and the engine management system will > rise the engine rpm (a very good engine management system would > do this compensation unnoticable). The reason for this on and off is > that the system pressure (or the evaporator temperature) is to high > (low) and the built in pressure (temperature) sensors will make the > compressor to disengage until pressure/temperature is back to > the lower level. > The 9-5 has a more sophisticated compressor with a variable > displacement, hence no cluth needed! > > Regards > > Anders > >

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