GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the engine front cover. Refer to Engine Front Cover Replacement.
  2. Remove the spark plugs in order to ease crankshaft/engine rotation. Refer to Spark Plug Replacement.
  3. Important: If the entire camshaft timing system is not in Stage 2 ( Camshaft Timing Drive Chain Alignment Diagram ), mark the timing chain and sprockets in order to ensure proper reassembly.

  4. Remove the left bank secondary camshaft drive chain tensioner. Refer to Secondary Camshaft Drive Chain Tensioner Removal - Left Side.

  5. Object Number: 902831  Size: SH
  6. Remove the left bank secondary camshaft drive chain guide. Refer to Secondary Camshaft Drive Chain Guide Removal - Left Side.

Installation Procedure


    Object Number: 902831  Size: SH
  1. Install the left bank secondary camshaft drive chain guide. Refer to Secondary Camshaft Drive Chain Guide Installation - Left Side.
  2. Install the left bank secondary camshaft drive chain tensioner. Refer to Secondary Camshaft Drive Chain Tensioner Installation - Left Side.
  3. Install the spark plugs. Refer to Spark Plug Replacement.
  4. Install the engine front cover. Refer to Engine Front Cover Replacement.