F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)
34. Remove the (A) pushpin from the (B) intake manifold insulator and remove from the (C) lower intake manifold.
35. Remove the (A) bolts from the (B) intake manifold tuning valve and remove the intake manifold tuning valve.
INSTALLATION
1. Position the intake manifold tuning valve and install the bolts.
2. Install the intake manifold insulator on the lower intake manifold and install the pushpin.