Inspection After Removal

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Surface Distortion

Check the surface distortion of the intake manifold mating surface with straightedge and feeler gauge.
Limit: 0.1 mm (0.004 in)

Fig 1: Checking Surface Distortion Of Intake Manifold Mating Surface Using Straightedge And Feeler Gauge
Courtesy of NISSAN NORTH AMERICA, INC.
If it exceeds the limit, replace intake manifold.