GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 28509-A Crankshaft Sprocket Remover


    Object Number: 196671  Size: SH
  1. Measure the camshaft timing chain free play. If the chain can be moved back and forth in excess of 16 mm (0.625 in), make a note that the camshaft timing chain and the sprockets must be replaced during assembly.
  2. Remove the camshaft sprocket bolts.
  3. Remove the camshaft sprocket and the camshaft timing chain.

  4. Object Number: 65848  Size: SH
  5. Remove the crankshaft sprocket using J 28509-A .

  6. Object Number: 180902  Size: SH
  7. Remove the key (if required).