Date: Wed, 4 Oct 2000 21:03:17 -0700 From: "barry" <abcnopsamcom> Subject: Re: Saab Anti Lock Brakes - A Question.
I have a 200 9-5 SE V6 wagon. I experimented with applying the brakes hard and did not notice any noise at all. I'm I not applying enough pressure? I was going about 35 MPH when pressing the brake pedal with more than normal force. Thanks, Barry "Rob Levandowski" <roblnopsamhiz.com> wrote in message news:robl-4797B7.18093904102000nopsam.frontiernet.net... > In article <4jqmtsktoav1eo828vahrqc5afvdeh1s3qnopsamcom>, Jay > <jaynopsamaala.demon.co.uk> wrote: > > >Hi, > > > > I've got a 1994 Saab900SE Coupe (2.5 - V6). > > > > I've had the car for a few weeks , and now I've been getting > >more used to it I've been giving it a bit of welly for a few days. > >Anyway, when I have to brake hard enough to use the abs, I get a > >horrible grinding noise through the body of the car and I can feel the > >brake pedal vibrating along with the noise. I know the brake pedal > >should 'pump' as the abs works, but the noise is so horrible I'm > >convinced that it's not right. > > The car is the General Motors version of the 900, which has a > >Bosch ABS system (so I'm told). The seller assures me that this noise > >is normal, and I'm certain he's not bothered getting them checked to > >save himself some grief. I've never had a car with ABS before, so I'm > >not certain, but I've never heard anyone elses car make this noise > >when they brake, and a few have told me that they can feel the ABS > >kicking in when they've had to brake hard. > > I don't really want to have to fork out for a brakes test, but > >I need to know if this really is normal. > > > > Can anyone shed any light on this ??? > > This is not unusual with anti-lock brakes of that vintage. I've owned > cars where the ABS system sounded as if it were tearing the car apart > from the inside, and any serious use would leave your leg numb from the > vibration. > > The system on my 1999 9-5 SE V6 is a lot tamer. > > I think this aspect of ABS is what leads a lot of people to misuse it -- > the number one reason why people don't see improved braking with ABS is > because they tend to use too little brake pressure. Perhaps the sound > and noise sends too much of a "broken parts" signal to the driver. In > any case, with ABS, the right way to handle an emergency stop is to push > the brake as hard as you can, and keep it there, while you steer to > avoid the obstacle if possible. The noise and vibration are your signal > that the ABS is doing its job... > > -- > Rob Levandowski > roblnopsamhiz.com > > (Opinions expressed are solely my own and not a statement from my employer)
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