Exhaust manifold leak
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Junior Member
Joined: Jan 2009
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Exhaust manifold leak
I have a 2000 f-150 with a 5.4. One of the bolts is broken off the exhaust manifold causing a exhaust leak when started, it goes away after it warms up. Is it necessary to repair? I don't mind the noise. Just wondering if it is hurting or going to cause other problems. Thanks
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Joined: Aug 2008
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Possibly a problem.
Cold air could enter through the leak and contact the exhaust valve. If the valve is hot and the air is cold enough the valve could bend/crack etc.
The volume of exhaust that travels through the system will drop because of the leak thus de-tuning the exhaust system.
There may be other issues with other exhaust dependent items as well.
Cold air could enter through the leak and contact the exhaust valve. If the valve is hot and the air is cold enough the valve could bend/crack etc.
The volume of exhaust that travels through the system will drop because of the leak thus de-tuning the exhaust system.
There may be other issues with other exhaust dependent items as well.