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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 144 (Engine Mechanical - 4.3L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Valve Lifters and Guides Cleaning and Inspection

Valve Lifters and Guides Cleaning and Inspection

WARNING: This page is about a different car, the 2003 GMC Savana and 2003 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
  1. Mark, sort, and organize the components for assembly.
    WARNING: Wear safety glasses in order to avoid eye damage.
  2. Clean the components in cleaning solvent.
  3. Dry the components with compressed air.
    Fig 1: Organizing & Cleaning Components
    G02078123Courtesy of GENERAL MOTORS CORP.
  4. Inspect the valve lifter pushrod guides for excessive wear.
  5. Inspect the valve lifter pushrod guides for cracks or damage.
    Fig 2: Inspecting Valve Lifter Pushrod Guides
    G02078124Courtesy of GENERAL MOTORS CORP.
  6. Inspect the valve lifter for the following:
    • Broken or damaged clip (1)
    • Worn pushrod socket (2)
    • Scuffed or worn lifter body (3)

      If the valve lifter shows scuffing or wear, inspect the engine block valve lifter bores for wear.

    • Worn roller (4)
    • Loose or damaged pin (5)
    • Plugged oil hole (6)
      Fig 3: Inspecting Valve Lifter
      G02078125Courtesy of GENERAL MOTORS CORP.