Signs of an exhaust problem
- A loud roar or rumble that wasn’t there before.
- Rattling or something hanging low under the vehicle.
- The smell of exhaust inside the cabin.
- Visible rust, holes or a loose pipe or muffler.
- A hissing or ticking sound, especially on a cold start.
- The check engine light is on, or fuel economy and power have dropped.
What an exhaust inspection covers
An exhaust inspection looks at the manifold, pipes, flex joints, catalytic converter, muffler, gaskets and hangers for leaks, rust and damage. Loose hangers and small leaks are often simpler repairs, while a leak near the engine or into the cabin shouldn’t wait.
If you smell exhaust inside the vehicle, open the windows for fresh air and have the system checked promptly. Exhaust gas contains carbon monoxide, which is dangerous. Exhaust problems can also trigger engine warning lights.
Common questions about exhaust repair
Why is my car suddenly louder?
A sudden increase in noise usually points to a hole or crack in the muffler or pipes, or a failed gasket or joint.
Is a rattling exhaust dangerous?
A rattle is often a loose heat shield or hanger, which is simple to fix, but it can also mean something is about to come loose. It is worth having inspected.
Can an exhaust leak hurt fuel economy?
It can. Leaks and failing components can upset how the engine runs and may trigger a check engine light.