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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1353 (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 Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Mark, sort, and organize the components for assembly.
    CAUTION: Refer to SAFETY GLASSES CAUTION .
  2. Clean the components in cleaning solvent.
  3. Dry the components with compressed air.
    Fig 1: Clean Valve Lifter & Guides
    G02106278Courtesy 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: Inspect Valve Lifter Pushrod Guide
    G02106279Courtesy 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: Valve Lifter Inspection Areas
    G02106280Courtesy of GENERAL MOTORS CORP.
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