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Oil leaking from exhaust manifold??

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28K views 11 replies 5 participants last post by  shammy777  
#1 ·
i’ve recently noticed some oil stains on my concrete so i got under my truck and looked around and i have a lot of oil around and on my exhaust manifold? anyone know if it’s leaking from there or what could cause it?
 
#3 ·
Possibly valve cover gaskets, oil would run down and may get on the manifold. The exhaust manifold itself would not have enough oil to puddle on the floor unless the turbo seals were completely out or a blown cylinder, ..otherwise the oil would just burn off and make smoke.

As @Heavy_GD mentioned ...got smoke? (blue smoke for oil)

Look for something leaking toward the top of the engine and dripping onto the manifold first.
 
owns 2006 Ford F250 Lariat FX4
#7 ·
Possibly valve cover gaskets, oil would run down and may get on the manifold. The exhaust manifold itself would not have enough oil to puddle on the floor unless the turbo seals were completely out or a blown cylinder, ..otherwise the oil would just burn off and make smoke.

As @Heavy_GD mentioned ...got smoke? (blue smoke

Look for something leaking toward the top of the engine and dripping onto the manifold first.
any way to trouble shoot to see if it’s the vc gasket or the turbo seal?
 
#4 ·
The glow plug harness is a common leak point too.
 
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#8 ·
The GP harness connections are right above the manifold bolt. If it leaks, it will run right down to the bolts. See pic.
Valve cover gasket as well.
 

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#10 ·
Pull the fender liners and you can see in pretty well, also an endoscope that uses your phone or tablet would allow you to see in places a mirror will not.
 
owns 2006 Ford F250 Lariat FX4