IdThis is a guide documenting my tips and tricks for successfully removing the upper intake manifold plenum of the VG33E Nissan Xterra engine (or Pathfinder, Frontier, etc).

This is only the removal of the upper manifold, and documents routing and function of related coolant hoses, vacuum lines, etc. There is a lot of junk bolted all over this thing, so it can be confusing at first to know what you need to remove, and what can stay.

Intake Plenum Gasket: 140334S100

Nissan Parts Diagram: Exhaust and Cooling / Water Hose and Piping
Rear 90: 140564S103
Rear Vertical: 140564S104
Throttle Body Hose 1: 140564S121
Throttle Body Hose 2: 140564S101
Manifold U Hose: 140564S105

Nissan Parts Diagram: Engine Mechanical / Crankcase Ventilation
Breather Hose to Rear of Manifold: 118260W005
Ushaped Hose on Manifold: 118264S100
Breather Hose to Air Duct: 118264S105

Nissan Parts Diagram: Engine Mechanical / Secondary Air System
Idle Air Hose to Air Duct: 140994S105