Turbocharger and Components

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Turbocharger and Components

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure Completely inspect the turbocharger and all other engine components that may cause similar conditions before replacing the turbocharger. Refer to Symptoms - Engine Mechanical (LCV)Symptoms - Engine Mechanical (LTG) . Clean all mating surfaces. Inspect all threaded holes for damage. Inspect the compressor and turbine blades for bent or broken conditions, and foreign material. PCV fluids and combustion product buildup are common and not a sign of failure. Replace the turbocharger if damage is found.
1	Turbocharger
2	Turbocharger Bypass Valve Solenoid NOTE: Inspect the bypass valve solenoid for damage. Replace if necessary.
3	Turbocharger Bypass Valve Solenoid Bolt CAUTION: Refer to Fastener Caution . Tighten 8 N.m (71 lb in)
4	Turbocharger Wastegate Regulator Solenoid Valve NOTE: Inspect the solenoid valve and bracket for damage only. Do not disassemble solenoid valve from bracket. Replace if necessary.
5	Turbocharger Wastegate Regulator Solenoid Valve Bracket Bolt Tighten 8 N.m (71 lb in)
6	Turbocharger Wastegate Actuator NOTE: Inspect the wastegate actuator rod for damage or tampering. Replace the wastegate actuator if damage is found.
7	Turbocharger Wastegate Actuator Bolt Tighten 8 N.m (71 lb in)
8	Turbocharger Wastegate Actuator Arm Retainer