2.5L Turbocharged Engines
- Disconnect the vacuum hose from the wastegate diaphragm.
- Connect a cooling system pressure tester or equivalent to the wastegate diaphragm.
- Slowly apply pressure while watching the actuator rod.
- If the wastegate actuator rod moves more than 0.015 in. (0.381mm) before 2-4 psi (13-27 kPa), (4 psi-27 kPa on Turbo II) or does not move after 5 psi (34 kPa) is applied the wastegate is faulty.
- Service faulty component as necessary.