Screeching noise when Brakes Applied - Saab 900 Bulletin Board - Saabnet.com
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Screeching noise when Brakes Applied
Posted by Andy900S [Email] (more from Andy900S) on Fri, 6 Feb 2004 06:54:34
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My daughter has a 1990 900S and yesterday she noticed a very loud metallic screeching sound coming from under the hood. This happened intermittantly but seemed to always happen after the initial engine start (although not immediately) and after the brake pedal had been depressed.
My first thought was the ABS Pump, but when I investigated the noise doesn't seem to be coming from the pump (below the brake reservoir - right?) but low down from the front of the engine nearest the firewall. At the same time that this horrible noise occurs, the engine revs will drop slightly and then recover after the sound disappears.
My other thought was the Power Steering Pump but it does not seem to happen when the wheel is turned, only when the brakes are applied and I can't see the connection between those actions.
Any help or advice would be appreciated.
Andy
posted by 216.185.7...
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