GM Service Manual Online
For 1990-2009 cars only

Object Number: 1579009  Size: SH

Important: Some models use a second design inverted tooth timing drive system. The second design drive system can be used in place of the first design roller timing system but all of the following components must be changed to the second design:

   • Primary timing drive chain
   • Crankshaft sprocket
   • Intermediate drive shaft idler left and right
Refer to Camshaft Timing Drive Design Identification

Remove the primary camshaft drive chain.