A leak on an exhaust manifold can be welded, or depending on the severity of the damage, result in having the unit replaced. Small cracks are patchable, but large cracks require more extensive repair.Continue Reading
The exhaust system begins at the manifold. When the manifold is damaged, the engine sounds louder, releases poisonous gas into the air and often results in poor fuel economy.
Small cracks can be welded shut. Although this is still considered a temporary fix, proper technique will extend the lifetime of the weld. The following instructions explain how to properly patch a smaller crack.
When the crack is too severe on the manifold, the structural integrity is compromised. This results in the welds braking. In these circumstances, the exhaust manifold must be replaced by a professional.Learn more about Car Parts & Maintenance
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