Timing Component Alignment Marks: Locations

NOTE: GM does not provide a timing mark diagram for belt installation without using the special tool(s) listed below.

For proper cam timing the use of tool J-38613-A is needed.

(figure 1) Timing Marks:

(Figure 2) Crankshaft Reference Marks:

CAUTION: Incorrect removal or installation of the timing belt can result in damage to internal engine components.

For complete Timing Belt Removal and Installation information, Service and Repair