GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 Lucerne 🢒 Engine 🢒 Engine Mechanical - 4.6L 🢒 Engine Front Cover Replacement

Removal Procedure

    Object Number: 315077 Size: SH
  1. Remove the drive belt idler pulley. Refer to Drive Belt Idler Pulley Replacement.
  2. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement.
  3. Remove the engine front cover bolts.
  4. Remove the engine front cover and gasket. The gasket is reusable. Do not discard unless it is damaged.

Installation Procedure

    Object Number: 315123 Size: SH
  1. Place a small amount of sealant at the split line of the upper and lower crankcases (1). Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.

    2. Object Number: 315077 Size: SH
  2. Place the engine front cover gasket over the crankcase dowel pins.
  3. Place the engine front cover in position on the crankcase.
  4. Apply threadlock to the engine front cover bolts. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.
  5. Install the engine front cover bolts until snug.

    6. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 315109 Size: SH
  6. Tighten the engine front cover bolts.

    7. Tighten
    Tighten the bolts in the sequence to 10 N·m (89 lb in).

  7. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement.
  8. Install the drive belt idler pulley. Refer to Drive Belt Idler Pulley Replacement.