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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Mechanical - 6.6L - On Vehicle Repair Instructions) >> On-Vehicle Repair Instructions >> Engine Front Cover Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) .
  2. Remove the water pump. Refer to Water Pump Replacement (6.6L (LLY)) .
  3. Remove the crankshaft front oil seal. Refer to Crankshaft Front Oil Seal Replacement .
  4. Remove the right wheelhouse panel. Refer to Wheelhouse Panel Replacement .
  5. Disconnect the crankshaft position (CKP) sensor electrical connector.
    Fig 1: View Of Crankshaft Position Sensor Electrical Connector
    GM1335470Courtesy of GENERAL MOTORS CORP.
  6. Remove the CKP sensor bolt and sensor.
    Fig 2: View Of CKP Sensor & Bolt
    GM1336119Courtesy of GENERAL MOTORS CORP.
  7. Remove the CKP sensor spacer bolts and spacer.
  8. Remove and discard the O-rings from the sensor and the spacer.
  9. Remove the upper oil pan to engine front cover bolts.
    Fig 3: View Of Upper Oil Pan To Engine Front Cover Bolts
    GM738866Courtesy of GENERAL MOTORS CORP.
  10. Remove the engine front cover bolts.
    Fig 4: View Of Engine Front Cover
    GM1336120Courtesy of GENERAL MOTORS CORP.
  11. Separate the engine front cover from the cylinder block and upper oil pan using J 37228  . See Special Tools .
    12. IMPORTANT: Do not bend the turbocharger coolant pipe.
  12. Remove the engine front cover.
  13. If necessary, remove the pressure relief valve O-ring.
    Fig 5: View Of Pressure Relief Valve O-Ring
    GM793901Courtesy of GENERAL MOTORS CORP.
  14. Clean and inspect the front cover. Refer to Engine Front Cover Cleaning and Inspection .
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