Econoline E350 1 Ton V8-5.4L CNG VIN M (1999)
8. Remove and discard the exhaust manifold gasket.
9. Clean and inspect the exhaust manifold.
Installation
1. Position the exhaust manifold gasket.
2. Position the (B) exhaust manifold and loosely install the (A) nuts.
3. Tighten the nuts in the sequence shown.
