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Johnny's AutomotiveJohnny's Automotive
Sebring, FL

Catalytic Converter Replacement at our Sebring shop

Bring it to our Sebring shop and we'll handle the catalytic converter replacement. Here's where to find us, when we're open, and how to book a time.

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Sebring, FL435 North Orange StreetBook a time online
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Where to find our Sebring shop

Address, hours, and directions for the shop that handles your catalytic converter replacement.

Address

435 North Orange Street
Sebring, FL 33870

Shop phone

(863) 471-0044

Hours

Monday
7:30 AM to 5:30 PM
Tuesday
7:30 AM to 5:30 PM
Wednesday
7:30 AM to 5:30 PM
Thursday
7:30 AM to 5:30 PM
Friday
7:30 AM to 5:30 PM
Saturday
Closed
Sunday
Closed

Recent Catalytic Converter Replacement Work in Sebring

Real jobs completed by our team in the Sebring area

Our team

Our Team

September 2026

Car Stalling at Highway Speed After Converter Work

What the customer reported

The customer reported that the vehicle was stalling at highway speeds and the problem was getting worse. Another shop had previously performed catalytic converter work, which resolved the issue for approximately three weeks, but the stalling returned.

What we found and did

The customer came to our Sebring shop for a second opinion after the earlier repair at another shop. The technician performed a courtesy evaluation, then a catalytic converter remove and replace and a 4 cylinder tune up, which includes replacing the listed materials, making adjustments as required, and a basic inspection of related component and system functions.

FAQ

Catalytic Converter Replacement in Sebring: questions answered

Answered by our licensed technicians serving Sebring.

How do you know it's the converter and not a sensor?

We watch what both oxygen sensors are actually doing while the engine runs, instead of trusting the code. A healthy converter makes the downstream sensor go relatively flat while the upstream one keeps switching. If that pattern is there, the converter is doing its job and we go looking somewhere else.

Can a converter be cleaned instead of replaced?

Occasionally. If the honeycomb is intact and just fouled from a condition we've since fixed, a cleaning is worth trying and we'll tell you the odds honestly. If it's rattling, melted, or plugged, no chemical or cleaning process is bringing it back and we won't take your money to try.

Why are catalytic converters so expensive?

The coating inside contains platinum, palladium and rhodium, and those metals are priced like the commodities they are. That's also exactly why they get stolen. It's the single most expensive component on most exhaust systems, which is the whole reason we diagnose carefully before condemning one.

What can I do about converter theft?

Some vehicles get targeted far more than others, usually the ones sitting high enough to slide under. For those we can install a shield or cable guard, and it's a lot cheaper when we do it during another repair while the car is already up. Parking where the underside isn't easy to reach helps too.

Will replacing the converter fix my failed emissions or turn off the light?

Only if the converter was the real cause. If a leak, a misfire, or an oil burning issue is what set the code, the light comes back on a new converter, sometimes within a week. That's why we chase the cause first and replace the part second.

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ASE Certified Technicians

ASE certified techs working on your vehicle

Flexible Drop-Off Hours

Convenient service options

20+ Years

2 decades of trusted service