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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1302 (Engine Mechanical (Repair Instructions 1 Of 3) - 5.7L) >> Repair Instructions (On-Vehicle & Off-Vehicle - Part 1 >> On-Vehicle Repair Instructions >> Engine Valley Cover Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. 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.
    Fig 1: View Of Knock Sensor Oil Seals & Cover
    GM490851Courtesy of GENERAL MOTORS CORP.
  1. Install NEW knock sensor oil seals (1) into the valley cover (2).

    Lubricate the seal surfaces with clean engine oil.

    2. Fig 2: Engine Valley Cover, Gasket, Bolts & LS6 Engine
    GM668798Courtesy of GENERAL MOTORS CORP.
  2. If equipped with the 5.7 L, RPO LS6 engine, install the engine valley cover and a NEW gasket.
    3. Fig 3: View Of Engine Valley Cover, Gasket & Bolts
    GM65048Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. If equipped with the 5.7 L, RPO LS1 engine, install the engine valley cover and NEW gasket.
  4. Install the engine valley cover bolts.

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

    5. Fig 4: View Of Knock Sensors
    GM309864Courtesy of GENERAL MOTORS CORP.
  5. Install the knock sensors.

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

    6. Fig 5: View Of Knock Sensor Wire Harness
    GM309859Courtesy of GENERAL MOTORS CORP.
  6. Connect the knock sensor wire harness electrical connectors.
  7. Install the rubber grommets into the valley cover.
  8. Install the intake manifold. Refer to Intake Manifold Replacement .
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