Failing Turbo -- noise in cockpit - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Failing Turbo -- noise in cockpit
Posted by charlie [Email] (more from charlie) on Mon, 20 Dec 2010 08:21:47
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I've noticed a strange, almost electronic noise coming from the cockpit in the past few weeks.
Doesn't appear to be the radio. My purge valve is acting up, and perhaps it is related.
However, I've looked through a few bits in the archives and I'm starting to think it my turbo. I first noticed the noise when I pushed the accelerator pedal. Throttle position sensor? I have a 97 SE turbo. Then I noticed sometimes it came on even after lifting up, and I started to think it was a turbo -- possibly a loose turbo causing vibration.
While driving, I can get the noise to come on when I go into the yellow, and it stays on for a few seconds after.
I tried to test it while idling, but when I hit the gas then, no boost, and I'm assuming no turbo? Any ideas on how to test it with the hood open to see if I can hear the sound under the hood?
posted by 68.50.102...
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