Repair Instructions

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

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Valve Rocker Arm Oil Control Valve Replacement (Bank 2)Valve Rocker Arm Oil Control Valve Replacement (Bank 1) for Q83 Valve Lifter Oil Solenoid Valve replacement.
Engine Control Module Replacement for K20 Engine Control Module replacement, programming, and setup.