GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the spark plugs in order to ease crankshaft/engine rotation. Refer to Spark Plug Replacement .
  2. Remove the engine front cover. Refer to Engine Front Cover Replacement .
  3. Remove the left bank secondary camshaft drive chain tensioner. Refer to Secondary Camshaft Drive Chain Tensioner Removal - Left Side .
  4. Remove the left bank secondary camshaft drive chain shoe. Refer to Secondary Camshaft Drive Chain Shoe Removal - Left Side .

  5. Object Number: 1579013  Size: SH
  6. Remove the left secondary camshaft drive chain shoe bolt.

  7. Object Number: 1579014  Size: SH
  8. Remove the left secondary camshaft drive chain shoe.

Installation Procedure


    Object Number: 1306380  Size: SH
  1. Ensure that the left secondary camshaft drive chain shoe (2) is being installed.

  2. Object Number: 1579014  Size: SH
  3. Position the left secondary camshaft drive chain shoe.
  4. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1579013  Size: SH
  5. Install the secondary camshaft drive chain shoe bolt.
  6. Tighten
    Tighten the secondary camshaft drive chain shoe bolt to 23 N·m (17 lb ft).

  7. Install the left bank secondary camshaft drive chain tensioner. Refer to Secondary Camshaft Drive Chain Tensioner Installation - Left Side .
  8. Install the engine front cover. Refer to Engine Front Cover Replacement .
  9. Install the spark plugs. Refer to Spark Plug Replacement .

Removal Procedure

  1. Remove the spark plugs in order to ease crankshaft/engine rotation. Refer to Spark Plug Replacement.
  2. Remove the engine front cover. Refer to Engine Front Cover Replacement.
  3. Remove the left bank secondary camshaft drive chain tensioner. Refer to Secondary Camshaft Drive Chain Tensioner Removal - Left Side.
  4. Remove the left bank secondary camshaft drive chain shoe. Refer to Secondary Camshaft Drive Chain Shoe Removal - Left Side.

  5. Object Number: 1579013  Size: SH
  6. Remove the left secondary camshaft drive chain shoe bolt.

  7. Object Number: 1579014  Size: SH
  8. Remove the left secondary camshaft drive chain shoe.

Installation Procedure


    Object Number: 1306380  Size: SH
  1. Ensure that the left secondary camshaft drive chain shoe (2) is being installed.

  2. Object Number: 1579014  Size: SH
  3. Position the left secondary camshaft drive chain shoe.
  4. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1579013  Size: SH
  5. Install the secondary camshaft drive chain shoe bolt to 23 N·m (17 lb ft).
  6. Install the left bank secondary camshaft drive chain tensioner. Refer to Secondary Camshaft Drive Chain Tensioner Installation - Left Side.
  7. Install the engine front cover. Refer to Engine Front Cover Replacement.
  8. Install the spark plugs. Refer to Spark Plug Replacement.