Wastegate Actuator: Testing and Inspection

TURBOCHARGER WASTEGATE ACTUATOR CHECK





1. Connect a hand vacuum pump (pressure-application type) to nipple.

CAUTION:
In order to avoid damage to the diaphragm, do not apply a pressure of 94 kPa (13.6 psi) or higher.

2. While gradually applying pressure, check the pressure that begins to activate (approximately 1 mm stroke) the turbocharger wastegate actuator rod.
Standard value: 78 - 82 kPa (11.4 - 11.8 psi)
3. If there is a significant deviation from the standard value, check the actuator or the turbocharger wastegate regulating valve: replace if necessary.