GM Service Manual Online
For 1990-2009 cars only

    Object Number: 2026595  Size: SH
  1. Remove the 2 primary timing chain tensioner bolts (3).
  2. Remove the primary timing chain tensioner (1).
  3. Remove the primary timing chain tensioner gasket (2).
  4. Inspect the primary timing chain tensioner mounting surface on the engine block for burrs or any defects that would degrade the sealing of the NEW primary timing chain tensioner gasket.