Econoline E350 1 Ton V8-5.4L CNG VIN M (1999)
5.4L Engine
All Engines
6. NOTE: The intake manifold is removed for clarity.
NOTE: The bolts are part of the valve cover and should not be removed.
Remove the LH valve cover.
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Fully loosen the bolts and remove the valve cover.
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Inspect the valve cover gasket and clean the mating surface of the cylinder head.
Installation
All Engines
1. NOTE: If not secured within 4 minutes, sealant must be removed and the sealing area cleaned with Metal Surface Cleaner F4AZ-19A536-RA or
equivalent meeting Ford specification WSE-M513392-A. Allow to dry until there is no sign of wetness, or 4 minutes, whichever is longer.
Failure to follow this procedure can cause future oil leakage.
Apply a bead of silicone in two places where the engine front cover meets the cylinder head.