The waste gate actuator is there to keep you from over-revving / destroying your turbocharger and/or engine. You need to re-connect it. Now, about this hissing...I have a 1996 850 Turbo wagon. I experienced the same issues some time ago. It turned out to be multiple problems: 1) The rubber induction...

Nice repair boosted5cyl.

I performed a similar repair to my '92 960 wagon (non-turbo).

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Best regards,
Moondogy

lgoldsby, This is a common problem. Open the trunk and look to the right for a handle used to release the rear seat. Next to this handle is a knob. Turn the knob counter-clockwise to release the vertical carpeted truck panel, then pull the panel from the top to expose the wheel well/sheet metal. Use...