Re: Name that sound! - Saab 900 Bulletin Board - Saabnet.com
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Re: Name that sound!
Posted by Tyler (more from Tyler) on Tue, 7 Oct 2003 21:16:01
In Reply to: Re: Name that sound!, Levo, Tue, 7 Oct 2003 17:26:52
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Generally, when the exhaust gets louder, it means the wastegate is opening, letting exhaust gas past your turbine, therefore reducing boost. (try driving around with the clip off the wastegate arm, and you'll know what I mean). For some reason I don't think it's your turbo that has gone bad, especially if there's no smoke. Try unplugging the hose going from the wastegate actuator to the APC solenoid, which will remove all control of boost by the APC. If the turbo spools like a mother and hits the fuel cut,l it's fine, and the problem lays in your APC system. Good luck.
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