Envoy 2WD L6-4.2L (2008)
![background image](/gmc/envoy_2wd/l6-4.2l/Page-564002.png)
Important: Place the camshaft caps in a rack to ensure the caps are installed in the same location from which they were removed.
10. Remove the camshaft caps.
11. Remove the camshafts.
12. Using a suitable adapter, apply air pressure to the cylinder.
13. Install the J-44228-A and compress the valve springs.