What is an exhaust manifold repair?

In this service, a mechanic will determine if your exhaust manifold is faulty and replace it with a properly working one if so.
The exhaust manifold can be a series of pipes or a cast iron manifold assembly, depending on your engine and vehicle type. The exhaust manifold collects the burned exhaust gases from the engine cylinders and ejects them via the tailpipe.
This part can leak over time due to normal wear and tear.

How to repair your exhaust manifold

To repair an exhaust manifold, the mechanic will usually complete the following steps:
  • Check for cracks or breaks in the manifold
  • Remove the faulty exhaust manifold
  • Examine the exhaust studs, cleaning carbon and old gasket from the cylinder head
  • Replace the exhaust manifold and gasket
  • Restart the engine and look for any leaks in the exhaust system
It’s possible that a broken mounting bolt has caused your exhaust manifold to leak. Removing this may cost you extra to compensate for the mechanic’s extra labor.

How do I know if I need to get my exhaust manifold repaired?

There are a few signs that your exhaust manifold may need to be repaired:
  • Your engine is making loud noises
  • Your engine isn’t performing well
  • The check engine light is illuminated
  • Smells are emanating from the engine compartment (such as the smell of melting plastic)

How important is repairing my exhaust manifold?

A leaking exhaust manifold is a health and safety hazard. Melting plastic components from neighboring engine compartments can damage nearby parts and become a fire hazard.
A leaky exhaust manifold can also negatively impact overall engine performance.

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