Vacuum Pump/Gauge, 0?30 inHg Snap-on YA4000A or equivalent, commercially available
1.
Turbocharger Bypass Control Valve - Inspect
1.
Disconnect the vacuum hose (A).
2.
Connect the vacuum pump/gauge, 0?30 inHg, to the vacuum hose. Apply vacuum to the turbocharger bypass control valve. Make sure the turbocharger bypass control valve moves. If the valve does not move, replace the turbocharger joint.