Shuddering at Turbo Redline - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Shuddering at Turbo Redline
Posted by Morkai (more from Morkai) on Sat, 25 Sep 2004 17:30:53
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As I was making a long trip last night, I noticed on the highway that if I punched down on the accelerator, the car would shudder as the turbo needle touched and pushed into the redline. I did not see a drop or spike in RPM, but it did seem to get up to speed a bit slower. Testing it today, I found that this problem occured in all gears, at any speed, but only when the turbo approached the red area. I just bought the car a few months ago (after my 9000 N/A moved on to new owners), and am not terribly familiar with the turbo system. The shuddering almost feels like the clutch is slipping, but I don't think it is this as the clutch is new as of 3,000 miles ago. What should I be looking for? Vacuum hoses, spark plugs, DI cassette, blow off valve? Any help would be appreciated.
Thanks,
Morkai
'96 NG900 SE (74k)
posted by 66.202....
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