Tapping Noise - Saab 9-5 Bulletin Board - Saabnet.com
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Tapping Noise
Posted by JoeR [Email] (more from JoeR) on Sun, 17 Jan 2010 15:10:02
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My 1999, 4cyl-T automatic, 9-5 Wagon, 257K miles has a loud, rapid, & steady tapping noise for last 1000 miles. Sounds like a screwriver whacking the top of the head. It is loudest upon startup & softens a little after engine is warm. Occurs in all gears & is louder when trans is engaged or engine under load. This is not a rattle or intermitent sound. Frequency increases/decreases exactly with engine RPM. Took it to three indies... one says piston slap, another says possibly connecting rod bearings, another not sure. All said I need a new engine. I'm a bit skeptical because despite noise, engine continues to run very strong. No smoke from exhaust. Any suggestions on cause & cost of repair? How long can I drive this before further damage? Thanks, JoeR
posted by 70.235.7...
Posts in this Thread:
- Tapping Noise, JoeR, Sun, 17 Jan 2010 15:10:02 <-- Viewing This Message
- Re: Tapping Noise, zrsio4, Tue, 19 Jan 2010 14:29:50
- Check exhaust manifold, andym, Mon, 18 Jan 2010 07:27:14
- Re: Tapping Noise, Dean, Sun, 17 Jan 2010 15:27:44
- Just curious..., TG, Sun, 17 Jan 2010 15:10:03
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