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2006 9-3ss 2.0T petrol, runs OK but not as it should. Turbo seems to spool up OK but when coming off throttle you dont have that crisp dumping sound as it did. Also travelling at speed (160km/h)and you accelrate it kicksdown a gear

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There may be a loose or split intake (Boost) hose.
You may need to have boost pressure checked.
The transmission kicking down may also be caused by low boost pressure as the transmission receives boost pressure, to regulate shift pattern.
Hope this helps.
Regards MMP

Posted on Aug 07, 2008


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