Removal

REMOVAL - IN VEHICLE
1. Perform fuel system pressure release procedure before attempting any repairs.
2. Disconnect negative cable from remote jumper terminal.
3. Remove air cleaner housing and inlet hose.
4. Remove upper intake manifold.
5. Remove cylinder head covers.
6. Remove crankshaft vibration damper, timing chain cover, and timing chain.
7. Remove camshafts and rocker arms.
8. With air hose attached to spark plug adapter installed in the cylinder being serviced, apply 620.56 - 89 kPa (90 - 100 psi) air pressure. This is to hold valves in place while servicing components.
9. Using Special Tool MD 998772A with adapter 6779, compress valve spring and remove valve locks, retainer, and valve spring.
10. Remove valve stem seal.