Exhaust Manifold: Inspection
WARNING: This page is about a different car, the 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
Check exhaust manifold for cracks, damage and mounting surface warpage. Repair or replace exhaust manifold if warpage exceeds .008" (.20 mm).