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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 - On Vehicle >> Engine Front Cover Replacement >> Installation Procedure

Installation Procedure

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: Front Cover And Bolts
    GM1877601Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  1. Install a NEW front cover.
  2. Install the front cover bolts.

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

    3. Fig 2: View Of CMP Sensor & Bolt
    GM1877007Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Do not reuse the original O-ring seal.
  3. If reinstalling the old CMP sensor, install a NEW O-ring seal onto the sensor.
  4. Install the CMP sensor to the wiring harness jumper.
  5. Connect the CMP sensor wiring harness jumper to the CMP sensor.
  6. Lubricate the O-ring seal with clean engine oil.
  7. Install the CMP sensor and wiring harness jumper to the engine front cover.
  8. Install the CMP sensor bolt.

    Tighten:  Tighten the bolt to 10 N.m (89 lb in).

    9. Fig 3: Camshaft Position (CMP) Sensor Wiring Harness Jumper
    GM1877593Courtesy of GENERAL MOTORS CORP.
  9. Connect the engine wiring harness electrical connector from the CMP sensor wiring harness jumper.
    10. Fig 4: CKP Sensor O-Ring Seal
    GM1877540Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: DO NOT reuse the original CKP sensor O-ring seal.
  10. Lubricate a NEW CKP sensor O-ring seal with clean engine oil.
  11. Install the NEW O-ring seal onto the CKP sensor.
    12. Fig 5: CKP Sensor Bolt And Sensor
    GM1877536Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: When installing the CKP sensor, make sure the sensor is fully seated before tightening the bolt. A poorly seated sensor may perform erratically and may set false DTCs.
  12. Install the CKP sensor and bolt.

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

    13. Fig 6: Crankshaft Position (CKP) Sensor Electrical Connector & Clip
    GM1877521Courtesy of GENERAL MOTORS CORP.
  13. Connect the CKP sensor electrical connector (2).
  14. Install the engine wire harness clip (1) to front cover.
    15. Fig 7: View Of Engine Protection Shield
    GM349061Courtesy of GENERAL MOTORS CORP.
  15. Install the engine shield and bolts.

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

  16. Install the oil pan. Refer to Oil Pan Replacement .
  17. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
  18. Install the water pump. Refer to Water Pump Replacement (LU3) .
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