A 1987 Saab's Pressure Relief Valve Location
In the 1980s, Saab became infamous for its use of turbochargers in its 900 model. The 900 uses a bypass valve to recirculate some of the leftover compressed air generated by the turbo charger. Occasionally the valve malfunctions, and locating it to replace it can save you an expensive repair bill.
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Parts to Remove
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Locating this valve can be simplified with the removal of a few hoses. Removiong the intake piping and air intake plumbing above the turbo will provide unblocked access to the valve.
Identifying the Valve
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The intake on the turbo compressor housing has a rubber connector in the shape of a "T." One of the hoses is connected to a fitting on the throttle body, and the other is connected to the bypass valve. The bypass valve sits on top of a black flywheel cover and is easily visible from the passenger side
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Removal
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A flat head screwdriver can be used to loosen the circular clamps that hold the bypass valve in place. Next, disconnect the vacuum hose that is attached to the nipple on the front of the bypass valve, and slide the valve out of the rubber tubing.
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References
- "1978-1993 Saab 900 Repair Manual"; John Haynes; 1993
