What does an exhaust do?

My mechanic wants $3000 to fix my car because he said I need a whole new exhaust system. What does an exhaust do anyways? It better be something good for that much money!

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Answer provided by
Shannon Martin
Answered on May 18, 2022
Ouch, that is a lot! The exhaust system is vital to your car’s efficiency and the environment.
To make it simple, the exhaust is responsible for removing harmful gas and toxins from your engine. The exhaust system consists of:
  • Exhaust manifold
  • Oxygen sensor
  • Catalytic converter
  • Muffler
  • Exhaust pipes
If any of these parts don’t function properly, your vehicle won’t pass a state emissions test. You may avoid future costly and surprising repair bills with a regular maintenance schedule.
Even with proper maintenance, there comes a time when the parts will need to be repaired or replaced. Make sure to call around and get several different quotes so you can try and cut down on this pricey service!
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