Exhaust Manifold Replacement
What is an exhaust manifold?
The exhaust manifold is located between the engine cylinder head and catalytic converter. It collects exhaust gas as it leaves the cylinder head.
How does the exhaust manifold work?
As the engine pumps hot exhaust gases out of the cylinder head, the exhaust manifold collects it, building pressure.
Some exhaust manifolds are designed to store the extreme heat caused by the still-burning exhaust gases leaving the individual cylinders. This helps burn any residual fuel in the exhaust before the gas is sent to the next emission device, the catalytic converter.
When the exhaust manifold gaskets are leaking, you will hear a ticking or tapping noise, especially when the engine is cold. The noise may partially or totally disappear when the engine is warmed up.