auto exhaust repair

What are the signs of an exhaust problem?

The most common signs are a sudden increase in engine noise (your car got loud overnight), a rumble or hiss under the vehicle, a rattling sound over bumps or at idle, the exhaust note becoming raspy or deeper, a drop in fuel economy, a check engine light with emissions or O2 sensor codes, vibrations in the steering wheel or floorboards, or exhaust smell inside the cabin. That last one is a safety issue — exhaust in the cabin means carbon monoxide in the cabin, and it needs to be addressed immediately.

How much does a catalytic converter replacement cost?

Catalytic converter replacement varies significantly by vehicle. Most passenger-car replacements run $1,000–$2,500 for parts and labor using aftermarket EPA-compliant converters. Some newer vehicles, hybrids, and high-emissions-standard vehicles can run substantially higher — California-certified or OE units can push a single converter above $2,500. We'll give you a written estimate before any work begins. Call (614) 235-8037 for a quote on your specific vehicle.

Can you replace a stolen catalytic converter?

Yes. Catalytic converter theft is an ongoing problem in Ohio, and we handle replacement regularly. Signs of theft are unmistakable: the vehicle is suddenly extremely loud when started, often with a deep rumble or roar, and an inspection under the vehicle reveals the cat has been cut out with a sawzall. We can source replacement converters, weld the exhaust back together, and optionally install a theft-deterrent shield or cage to make it harder for a repeat. Insurance often covers the replacement — check your comprehensive coverage.

Is it safe to drive with an exhaust leak?

A small exhaust leak far back in the system isn't an immediate safety issue, but a leak anywhere ahead of the catalytic converter is a real concern — and any leak that allows exhaust gases to enter the passenger cabin is dangerous. Exhaust contains carbon monoxide, which is odorless and can cause drowsiness, headaches, or worse over time. If you smell exhaust fumes inside the vehicle, don't ignore it. Get it repaired soon, and in the meantime drive with windows cracked.

Do I need a new muffler or can you weld it?

It depends on the damage. A small hole or a separated seam can often be welded for significantly less than a full muffler replacement. A rusted-through muffler shell or extensive rot is a replacement — welding wouldn't hold. When you bring the vehicle in, we inspect the muffler and the adjacent piping; sometimes a weld repair on one section is enough, sometimes a section replacement is smarter long-term. We quote both options when they apply.

My car suddenly got loud — what happened?

Sudden loudness usually means one of three things: a muffler rusted through or blew out, a pipe separated or cracked (often at a weld or bend near the catalytic converter or flex pipe), or the catalytic converter itself was stolen. All three are common in older vehicles, and all three are fixable. Drop the vehicle off, or give us a call at (614) 235-8037 — we can usually tell you what's going on with a quick look underneath.

Does Columbus require emissions testing?

No. Franklin County (including Columbus) is not part of Ohio's E-Check emissions inspection program. That program applies only to vehicles registered in Cuyahoga, Geauga, Lake, Lorain, Medina, Portage, and Summit counties. That said, your catalytic converter and O2 sensors still matter — if your check engine light is on with emissions codes, performance and fuel economy suffer even if you're not failing an inspection. We diagnose and repair emissions-related exhaust issues whether or not you're required to pass a test.