E 150 V8-4.6L SOHC VIN W (2004)
Valve Guide Seal: Service and Repair
1. Remove the valve springs.
2. Remove the valve stem seals.
1. NOTE: The valve stem seal must be bottomed on the valve seat.
NOTE: Make sure that the garter spring is present in the valve stem seal.
Use the special tools to install the valve stem seals.
2. Install the valve springs.