Intake Manifold Assembly - 4.6L: Disassembly

WARNING: This page is about a different car, the 2004 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.

Remove the four bolts and the fuel injection supply manifold.

Fig 1: Removing Bolts And Fuel Injection Supply Manifold
Courtesy of FORD MOTOR CO.
Remove the fuel injectors from the fuel injection supply manifold.

Fig 2: Removing Fuel Injectors From Fuel Injection Supply Manifold
Courtesy of FORD MOTOR CO.
Discard the two O-ring seals from each fuel injector. Install new O-ring seals.

Fig 3: Installing O-Ring Seals
Courtesy of FORD MOTOR CO.
Remove the engine noise shield.

Fig 4: Removing Engine Noise Shield
Courtesy of FORD MOTOR CO.
Remove the bolts.

Fig 5: Removing Bolts
Courtesy of FORD MOTOR CO.
Separate the upper and lower intake manifolds and discard the lower intake manifold gasket.

Fig 6: Removing Upper And Lower Intake Manifolds
Courtesy of FORD MOTOR CO.
Remove the bolts from the intake manifold tuning valve and remove the valve.

Fig 7: Removing Bolts From Intake Manifold Tuning Valve
Courtesy of FORD MOTOR CO.

CAUTION: If the engine has been internally damaged and metal or other foreign material has entered the manifold, it is recommended the manifold be discarded.

NOTE: If there is no residual gasket material present, metal surface prep can be used to clean and prepare the sealing surfaces.

Inspect all external and internal surfaces of the upper intake manifold.
- Inspect for cracks or other damage.
- Inspect for foreign material inside of the manifold.
- Clean the upper intake manifold sealing surfaces with silicone gasket remover and metal surface prep. Follow the directions on the packaging.
Allow the upper and lower intake manifolds to dry completely.