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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> ENGINE MECHANICAL - 4.8L, 5.3L, AND 6.0L (2 Of 4) >> On-Vehicle Repair Instructions >> Engine Valley Cover Replacement >> Installation Procedure

Installation Procedure

IMPORTANT: All gasket surfaces should be free of oil or other foreign material during assembly.
  1. Lubricate the NEW knock sensor seals (1) with clean engine oil.
  2. Install the knock sensor oil seals (1) into the engine valley cover (2).
    Fig 1: View Of Knock Sensor Oil Seals & Cover
    GM490851Courtesy of GENERAL MOTORS CORP.
  3. Install the engine valley cover with a NEW gasket onto the engine block.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
    Fig 2: View Of Engine Valley Cover, Gasket & Bolts
    GM65048Courtesy of GENERAL MOTORS CORP.
  4. Install the engine valley cover bolts.

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

    5. Fig 3: View Of Knock Sensors
    GM309864Courtesy of GENERAL MOTORS CORP.
  5. Install the knock sensors.

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

  6. Connect the knock sensor electrical connectors.
  7. Push down on the rubber covers.
    Fig 4: View Of Rubber Covers
    GM832149Courtesy of GENERAL MOTORS CORP.
  8. Install the intake manifold. Refer to Intake Manifold Replacement .
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