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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> ENGINE MECHANICAL - 4.8L, 5.3L, AND 6.0L (3 Of 4) >> Off-Vehicle Repair Instructions (Part 2) >> Engine Valley Cover Removal

Engine Valley Cover Removal

  1. Remove the knock sensor wire harness.
    Fig 1: View Of Knock Sensor Wire Harness
    GM309859Courtesy of GENERAL MOTORS CORP.
  2. Remove the knock sensors.
    Fig 2: View Of Knock Sensors
    GM309864Courtesy of GENERAL MOTORS CORP.
  3. Remove the valley cover bolts.
    Fig 3: View Of Engine Valley Cover, Gasket & Bolts
    GM65048Courtesy of GENERAL MOTORS CORP.
  4. Remove the valley cover and gasket.
  5. Discard the valley cover gasket.
  6. Remove the knock sensor oil seals (520) from the cover (555).
    Fig 4: View Of Knock Sensor Oil Seals & Valley Cover
    GM1277106Courtesy of GENERAL MOTORS CORP.
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