Date: 30 Jan 1999 12:03:42 GMT From: "Samuel Mikkola" <sampponopsami.fi> Subject: Re: Strange noise when starting a cold 9000 -88
> When i start my car, a Saab 9000 i -88 i hear a gentle silent knocking sound > for about 30 seconds. > It follows the engines RPM. But the problem is that it doesn't come from the > engine, it seems to come from the area between the torpedo wall and the > instrument panel. > You can only hear the sound from inside the car. This only appears when the > car is started up cold, 6-8 hours since last driven. If this sound is like a resonant problem, I think my 9000 is suffering from the same. Really annoying. On my 9000 it's usually around 2000 rpm and when reving over 2500 it dissappears. The resonating sound is much more evident when it's cold outside, but it's almost always there at certain rpm's. Samuel Mikkola