Is this normal?
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Joined: May 2006
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Is this normal?
I pulled the exhaust manifold on my 2006 to install an egt sensor and found there is no exhaust manifold gasket.Is there suppose to be one?It doesn't seem to be leaking but I find that strange.Any help is appreciated.
Post Fiend
Joined: Apr 2004
Posts: 19,098
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From: Great State of Texas
I believe Ford has a gasket available. The following is a TSB and comment provided by dieselmann's website:
Exhaust Smell in Cab:
If an exhaust smell is present in the cab, inspect for leaks at the exhaust manifolds. Ford's procedure calls for warming up the truck to operating temperature, then shutting off the engine, remove the EBP sensor and use a smoke machine to feed smoke into the exhaust system. Inspect each exhaust port, manifold flange and Y-pipe joint for smoke leakage. I find using a length of hose as a stethyscope while the engine is running works well to pinpoint exhaust leaks. If a leak is found at the exhaust manifold, replace only the manifold gasket that is leaking(I think this should read INSTALL a gasket, since originally there are no gaskets at the manifolds). Gasket P/N 5C4Z-9448-A.
TSB 05-13-9.
Exhaust Smell in Cab:
If an exhaust smell is present in the cab, inspect for leaks at the exhaust manifolds. Ford's procedure calls for warming up the truck to operating temperature, then shutting off the engine, remove the EBP sensor and use a smoke machine to feed smoke into the exhaust system. Inspect each exhaust port, manifold flange and Y-pipe joint for smoke leakage. I find using a length of hose as a stethyscope while the engine is running works well to pinpoint exhaust leaks. If a leak is found at the exhaust manifold, replace only the manifold gasket that is leaking(I think this should read INSTALL a gasket, since originally there are no gaskets at the manifolds). Gasket P/N 5C4Z-9448-A.
TSB 05-13-9.
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Ok that explains alot, because I stopped by ford and bought the gasket before I crawled under the truck , then I removed the manifold and no gasket.I was a little puzzled as to how that manifold wasn't leaking if there was supposed to be a gasket there.I replaced it without the gasket and everything seems fine.I appreciate the info kw5413.
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