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witch plenum gasket


joeshiff

New Member
Joined
Oct 10, 2008
Messages
3
City
lily lake il
Vehicle Year
2010 ranger
Transmission
Automatic
got a 99 4.0 ohv non egr. have a cracked plenum. the new one has the o rings installed in the bottom. napa showes a 1/4 inch gasket for the bottom. is this fords fix so the plenum does not sit directly on the engine and crack again:shok:? should i use it or just put it back the way it was.:headbang:
 
Are you talking in regards to the gasket between the lower intake and the fuel rail?
 
no, the plastic air plenum to the intake manifold. the plastic plenum has o rings at the mating surface. i installed it and it leaks. should i use silicone or the thick gasket
 
On 98+ OHV the lower intake uses same style lower gasket that mounts to the valley in the block. But where the Fuel manifold and lower meet there is a thick gasket between them. its a fuel manifold gasket, fel-pro makes one. Use that one in between the lower and the fuel rail.
 
On 98+ OHV the lower intake uses same style lower gasket that mounts to the valley in the block. But where the Fuel manifold and lower meet there is a thick gasket between them. its a fuel manifold gasket, fel-pro makes one. Use that one in between the lower and the fuel rail.

You post stuff? :icon_rofl:

If you are using the proper thick lower gasket and everything is installed properly you should have no issues with sealing, if you have a leak between the plenum and rail, something is bent or improperly installed.
 

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