GM 3.6 Timing Chain Replacement - Full replacement how to - Equinox, Impala, CTS, LaCrosse, Colorado - YouTube
GM 3.6 with just a tad over 60,000 miles. Was running in limp mode. Timing chains need to be replaced since they're stretched : r/Justrolledintotheshop
Installation Tips for GM 3.6L Melling Timing Kit Part # 3-753S - Melling