Additional Recommended Inspections

Figure 1. Timing Chain Tensioner Shoe:

INSPECT THE TIMING CHAIN TENSIONER SHOE
- Remove the cylinder head.


- Inspect the timing chain tensioner shoe. If the tensioner shoe has grooves worn into it in excess of 1.14 mm (0.045 in.) from the chain, replace the tensioner shoe and stud with GM Part No. 12340864.