Procedures
Upper and Lower Intake Manifold Inspection
• Graphic shows non-repairable damage to the lower intake manifold (1) due to crossthreading of an upper intake manifold attaching bolt (2).
Check both the upper and lower intake manifolds for:
• Damage and cracks
• Gasket surface damage or warpage
Check the lower intake manifold for:
• Damaged fuel injector ports
If either the upper or lower manifold exhibits any damaged or warped conditions, replace the manifold.