GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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

  5. Remove the primary camshaft drive chain tensioner. Refer to Primary Camshaft Intermediate Drive Chain Tensioner Removal .

Installation Procedure

  1. Install the primary camshaft drive chain tensioner. Refer to Primary Camshaft Intermediate Drive Chain Tensioner Removal .
  2. Install the spark plugs. Refer to Spark Plug Replacement .
  3. Install the engine front cover. Refer to Engine Front Cover Replacement .
  4. Install the engine covers. Refer to Engine Cover Replacement .