Check engine light with catalyst codes
The most common sign is a check engine light with a catalytic converter efficiency code. The computer monitors the converter's performance, and a code means it's reading outside its expected range.
Rattling from underneath
A rattling sound from under the car can mean the internal structure of the converter has broken loose. This can restrict exhaust flow and affect performance.
We inspect before recommending
Catalytic converter codes can have other causes — like oxygen sensors or exhaust leaks — so the system should be diagnosed before the converter is replaced. We service catalytic converters and exhaust components; call us to confirm the exact exhaust work we perform for your vehicle.
Want us to take a look?
These articles are general guidance — not a diagnosis of your car. Bring it to Happy Cars at 12935 W Colonial Dr, Winter Garden, FL 34787 and we'll inspect before we recommend any repair.
