Turbocharger Wastegate Actuator Vacuum Tank Replacement

Removal Procedure

1. Remove Intake Manifold Cover. Refer to Intake Manifold Cover Replacement (LF4)
2. Remove Turbocharger Wastegate Regulator Solenoid Valve. Refer to Turbocharger Wastegate Regulator Solenoid Valve Replacement (Bank 1) Turbocharger Wastegate Regulator Solenoid Valve Replacement (Bank 2) 
3. Remove Turbocharger Wastegate Actuator Vacuum Tank Solenoid Valve Tube. Refer to Turbocharger Wastegate Actuator Vacuum Tank Solenoid Valve Tube Replacement 
Fig 1: Charge Air Bypass Valve Vacuum Tank Tube
Courtesy of GENERAL MOTORS COMPANY
4. Disconnect Charge Air Bypass Valve Vacuum Tank Tube (1) @ Charge Air Cooler Cover. Refer to Plastic Collar Quick Connect Fitting Service 
Fig 2: Turbocharger Wastegate Actuator Vacuum Source Tube
Courtesy of GENERAL MOTORS COMPANY
5. Disconnect Turbocharger Wastegate Actuator Vacuum Source Tube (1) @ Vacuum Pump
Fig 3: Charge Air Bypass Valve Tube
Courtesy of GENERAL MOTORS COMPANY
6. Disconnect Charge Air Bypass Valve Tube (1) @ Charge Air Bypass Valve
Fig 4: Electrical Connector And Charge Air Bypass Valve
Courtesy of GENERAL MOTORS COMPANY
7. Disconnect Electrical Connector (1) @ Charge Air Bypass Valve (2)
Fig 5: Turbocharger Wastegate Actuator Vacuum Source Tube And Retainer
Courtesy of GENERAL MOTORS COMPANY
8. Unclip Turbocharger Wastegate Actuator Vacuum Source Tube (1) @ Retainer (2)
Fig 6: Turbocharger Wastegate Actuator Vacuum Source Tube And Retainer
Courtesy of GENERAL MOTORS COMPANY
9. Unclip Turbocharger Wastegate Actuator Vacuum Source Tube (1) @ Retainer (2)
Fig 7: Charge Air Bypass Valve Tube
Courtesy of GENERAL MOTORS COMPANY
10. Disconnect Charge Air Bypass Valve Tube (1) @ Charge Air Bypass Valve
Fig 8: Electrical Connector And Charge Air Bypass Valve
Courtesy of GENERAL MOTORS COMPANY
11. Disconnect Electrical Connector (1) @ Charge Air Bypass Valve (2)
Fig 9: Turbocharger Wastegate Actuator Vacuum Tank And Bolts
Courtesy of GENERAL MOTORS COMPANY
12. Remove Turbocharger Wastegate Actuator Vacuum Tank Bolts (1) (Qty: 2)
13. Remove Turbocharger Wastegate Actuator Vacuum Tank (2)

Installation Procedure

Fig 10: Turbocharger Wastegate Actuator Vacuum Tank And Bolts
Courtesy of GENERAL MOTORS COMPANY
1. Install Turbocharger Wastegate Actuator Vacuum Tank (2)
CAUTION:

Refer to Fastener Caution .

2. Install and tighten Turbocharger Wastegate Actuator Vacuum Tank Bolts (1) (Qty: 2) to 10 N.m (89 lb in)
Fig 11: Electrical Connector And Charge Air Bypass Valve
Courtesy of GENERAL MOTORS COMPANY
3. Connect Electrical Connector (1) @ Charge Air Bypass Valve (2)
Fig 12: Charge Air Bypass Valve Tube
Courtesy of GENERAL MOTORS COMPANY
4. Connect Charge Air Bypass Valve Tube (1) @ Charge Air Bypass Valve
Fig 13: Turbocharger Wastegate Actuator Vacuum Source Tube And Retainer
Courtesy of GENERAL MOTORS COMPANY
5. Install Turbocharger Wastegate Actuator Vacuum Source Tube (1) @ Retainer (2)
Fig 14: Turbocharger Wastegate Actuator Vacuum Source Tube And Retainer
Courtesy of GENERAL MOTORS COMPANY
6. Install Turbocharger Wastegate Actuator Vacuum Source Tube (1) @ Retainer (2)
Fig 15: Electrical Connector And Charge Air Bypass Valve
Courtesy of GENERAL MOTORS COMPANY
7. Connect Electrical Connector (1) @ Charge Air Bypass Valve (2)
Fig 16: Charge Air Bypass Valve Tube
Courtesy of GENERAL MOTORS COMPANY
8. Connect Charge Air Bypass Valve Tube (1) @ Charge Air Bypass Valve
Fig 17: Turbocharger Wastegate Actuator Vacuum Source Tube
Courtesy of GENERAL MOTORS COMPANY
9. Connect Turbocharger Wastegate Actuator Vacuum Source Tube (1) @ Vacuum Pump
Fig 18: Charge Air Bypass Valve Vacuum Tank Tube
Courtesy of GENERAL MOTORS COMPANY
10. Connect Charge Air Bypass Valve Vacuum Tank Tube (1) @ Charge Air Cooler Cover
11. Install Turbocharger Wastegate Actuator Vacuum Tank Solenoid Valve Tube. Refer to Turbocharger Wastegate Actuator Vacuum Tank Solenoid Valve Tube Replacement 
12. Install Turbocharger Wastegate Regulator Solenoid Valve. Refer to Turbocharger Wastegate Regulator Solenoid Valve Replacement (Bank 1) Turbocharger Wastegate Regulator Solenoid Valve Replacement (Bank 2) 
13. Install Intake Manifold Cover. Refer to Intake Manifold Cover Replacement (LF4)