Loud Exhaust or Rumbling NoiseNeeds attention soon

A suddenly loud car usually means the exhaust has developed a leak — rusted-through muffler, broken pipe, or failed gasket. In Florida's humidity, exhaust systems corrode from the inside out.

Most likely causes

1. Rusted-through muffler or pipe — Condensation inside the system rusts it from within — the classic cause of sudden loudness.
2. Failed exhaust gasket or flex pipe — Leaks at joints often tick at idle and roar under acceleration.
3. Broken hanger letting parts drag — Rattling or scraping plus loudness means something's hanging low.

What to do

Get it inspected soon — exhaust leaks ahead of the cabin can push fumes inside, and a dragging component can fail completely on the road. Weld-level repairs are cheap when caught early.

What the repair typically costs

Related services in Florida typically run $100–$2,500 depending on what the diagnosis finds:

Muffler replacement	$150–$500
Exhaust leak / weld repair	$100–$300
Full exhaust system replacement	$700–$1,800
Catalytic converter replacement	$900–$2,500

See the full muffler repair cost guide →

Find a muffler repair shop near you

The Auto Network covers trusted local shops across Florida — pick your city for shops that handle exactly this:

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Common questions