STS AWD V6-3.6L (2007)
1. Install the primary upper camshaft drive chain guide. See: Service and Repair/Overhaul/Repair Instructions/122. Primary Camshaft Drive Chain
Guide Installation - Upper
2. Install the primary camshaft drive chain tensioner. See: Service and Repair/Overhaul/Repair Instructions/123. Primary Camshaft Drive Chain
Tensioner Installation
3. Install the engine front cover. See: Timing Cover/Service and Repair