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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 360 (Engine Mechanical - 2.5L (LCV)) >> Repair Instructions - Off Vehicle >> Cylinder Head Cleaning and Inspection >> Valve Rocker Arm Cleaning and Inspection

Valve Rocker Arm Cleaning and Inspection

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.
    Fig 1: Valve Rocker Arm Inspection Areas
    GM483134Courtesy of GENERAL MOTORS COMPANY
  1. Inspect the camshaft follower roller (1) for the following:
    • Flat spots
    • Excessive scoring and pitting
    • Ensure the roller spins freely
  2. Inspect the camshaft follower valve tip area (2).
  3. Inspect the camshaft follower stationary hydraulic lash adjuster (SHLA) pivot area (3).
  4. Replace the camshaft follower or followers as necessary.