undiagnosed noise...help.... - Saab 900 Bulletin Board - Saabnet.com
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undiagnosed noise...help....
Posted by kooch (more from kooch) on Wed, 22 Dec 2004 06:00:42
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it sounds like an exhaust leak, kind of like a puttering. but, i only hear it when i am in 3rd gear and putting load on the engine. it does not happen in any other gear under load. however, it does seem to be in time with the exhaust note. i am really confused, and know it is hard to diagnose without actually hearing it, but any thoughts? is it even possible for an exhaust leak to only be prevalent in 3rd under load and not other gears?
other info: seems to be worse as the engine warms up, not really noticable when cold. also, does not seem to rise and fall with rpm. mostly noticable at 2000-2500 rpm in 3rd gear. not truely a vibration, but i am wondering if it has something to do with the tranny? 1990 900 turbo, 5 speed.
thanks in advance.
posted by 216.75.2...
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