Intake & Exhaust Manifolds: Inspection
WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Dodge Dakota, and 1995 Dodge Caravan. However, it is still accessible from the selected car via links, so may be relevant.
Check manifold gasket surface for warpage. Repair or replace manifold if warpage is greater than .006" (.15 mm) per 12" (305 mm).