try this, but get a manual - Saab 900 Bulletin Board - Saabnet.com
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try this, but get a manual
Posted by Johnk (more from Johnk) on Fri, 25 Jan 2002 11:56:31
In Reply to: Just can't figure it out, Erik, Thu, 24 Jan 2002 19:33:10
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I think you're OK, but why don't you just remove all the turbo plumbing. Just held together with hose clamps and you should be OK without a manual. You might have a loose clamp connection or a bad hose or tube. When you have the hose off the turbo itself, stick a finger in the turbo and make sure the impeller spins freely with no fin to body contact. Impeller end play is OK but should not be more than a mm wiggle.
The hooter valve connects into the plumbing after the turbo and it has a small vacuum hose connected to it that runs up to the intake throttle body. Disconnect this hose from the throttle body(after butterfly) and suck on it, should hold a vacuum. If not, the diaphram is leaking and you should replace the valve.
posted by 216.75....
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