Checking the charge air bypass valve, 4-cyl.

/ 9-5 (9600) / 2001 / 2. Engine / Turbocharger system / Adjustment/replacement / Checking the charge air bypass valve, 4-cyl.

1.	Disconnect the vacuum hose from the charge air bypass valve.

2.	Connect the pressure/vacuum pump, 30 14 883 Pressure/vacuum pump , and build negative pressure in the valve.

3.	Check that the diaphragm is intact. If the diaphragm is damaged, no vacuum can be created.

4.	Repeat points 2 and 3 but pump up a pressure.

5.	Disconnect the pump.

6.	Connect the vacuum hose.

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