F 150 4WD Pickup V8-5.4L CNG VIN M (2001)
Valve Guide Seal: Service and Repair
Special Tool(s)
Removal
1. Remove the valve springs.
2. Remove the valve stem seals.
Installation
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 (A) Valve Stem Oil Seal Installer to install the (B) valve stem seals.
2. Install the valve springs.