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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1063 (Engine Mechanical - 4.3L) >> Repair Instructions - Off Vehicle >> Engine Front Cover Installation

Engine Front Cover Installation

WARNING: This page is about a different car, the 2008 GMC Sierra and 2008 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Engine Front Cover
    GM1883510Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Once the composite engine front cover is removed DO NOT reinstall the engine front cover. Always install a NEW engine front cover.
  1. Install the NEW engine front cover.
    2. NOTE: Refer to Fastener Notice .
  2. Install the engine front cover bolts.

    Tighten:  Tighten the bolts to 12 N.m (106 lb in).

    3. Fig 2: camshaft position sensor & bolt
    GM1883509Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: DO NOT reuse the original camshaft position sensor O-ring seal. When installing the camshaft position sensor assembly be sure the camshaft position sensor assembly is fully seated and held stationary in the engine front cover camshaft position sensor bore. A camshaft position sensor that is not completely seated will cock in the engine front cover and may result in erratic engine operation.
  3. Lubricate the NEW camshaft position sensor O-ring seal with clean engine oil.
  4. Install the NEW camshaft position sensor O-ring seal onto the camshaft position sensor assembly.
  5. Install the camshaft position sensor assembly until fully seated into the engine front cover.
  6. Install camshaft position sensor bolt.

    Tighten:  Tighten the camshaft position sensor bolt to N.m ( lb in).

    7. Fig 3: View Of Crankshaft Position Sensor Seal O-Ring
    GM387759Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: DO NOT reuse the original crankshaft position sensor seal, O-ring. When installing the crankshaft position sensor be sure the crankshaft position sensor is fully seated and held stationary in the engine front cover crankshaft position sensor bore. A crankshaft position sensor that is not completely seated will cock in the engine front cover and may result in erratic engine operation.
  7. Lubricate the NEW crankshaft position sensor seal, O-ring, with clean engine oil.
  8. Install the NEW crankshaft position sensor seal, O-ring, onto the crankshaft position sensor.
    9. Fig 4: View Of CKP Sensor & Bolt
    GM11485Courtesy of GENERAL MOTORS CORP.
  9. Install crankshaft position sensor until fully seated into the engine front cover.
  10. Install crankshaft position sensor bolt.

    Tighten:  Tighten the crankshaft position sensor bolt to 8 N.m (71 lb in).

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