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Home >> Saab >> 2003 >> 9-3 Vector, Standard >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Turbocharger System, Petrol (Early; 9400) >> Adjustment - Replacement >> Checking the bypass valve (B235R, B205L/R)

Checking the bypass valve (B235R, B205L/R)

  1. Disconnect the vacuum hose from the bypass valve.
    Fig 1: Illustration For Steps 1-3
    G03577240Courtesy of SAAB-SCANIA OF AMERICA, INC.
  2. Connect 30 14 883 Pressure/vacuum pump  and create a negative pressure in the valve.
  3. Make sure the diaphragm is undamaged. If it is, it will not hold the vacuum.
  4. Repeat steps  2 . and  3 , this time creating positive pressure.
    Fig 2: Illustration For Steps 4-6
    G03577241Courtesy of SAAB-SCANIA OF AMERICA, INC.
  5. Disconnect the pump.
  6. Connect the vacuum hose.
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