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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1029 (Engine Mechanical - 4.8L, 5.3L & 6.0L (Repair Instructions - 3 Of 3)) >> Repair Instructions (Off-Vehicle Repair Instructions Part 3) >> Engine Valley Cover Installation

Engine Valley Cover Installation

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: All gasket surfaces should be free of oil or other foreign material during assembly.
  1. Install NEW knock sensor oil seals (520) into the valley cover (555).

    Lubricate the seal surfaces with clean engine oil.

    2. Fig 1: View Of Knock Sensor Oil Seals & Valley Cover
    GM1277106Courtesy of GENERAL MOTORS CORP.
  2. Install the valley cover and NEW gasket.
    3. Fig 2: View Of Engine Valley Cover, Gasket & Bolts
    GM65048Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the valley cover bolts.

    Tighten:  Tighten the valley cover bolts to 25 N.m (18 lb ft).

  4. Install the knock sensors.

    Tighten:  Tighten the knock sensors to 20 N.m (15 lb ft).

    5. Fig 3: View Of Knock Sensors
    GM309864Courtesy of GENERAL MOTORS CORP.
  5. Install the knock sensor wire harness.
    6. Fig 4: View Of Knock Sensor Wire Harness
    GM309859Courtesy of GENERAL MOTORS CORP.
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