Check engine light for catalyst efficiency? Failed emissions? E1 Auto Care provides catalytic converter replacement in Arlington, TX. We diagnose accurately and use quality converters—backed by our 12 months / 12,000 miles warranty on parts and labor.
What is a Catalytic Converter? (Emissions Control)
The catalytic converter is an emissions control device that converts harmful exhaust gases into less harmful substances. It uses precious metals (platinum, palladium, rhodium) as catalysts to transform carbon monoxide, hydrocarbons, and nitrogen oxides into carbon dioxide, water, and nitrogen.
Catalytic converters fail from contamination, overheating, or physical damage. Oil burning, coolant leaks, and rich fuel mixtures coat the catalyst and reduce efficiency. Overheating from misfires can melt the substrate. They're also targeted by thieves for their precious metal content.
At E1 Auto Care, we diagnose catalyst problems properly before recommending replacement. P0420/P0430 codes don't always mean bad converters—oxygen sensor issues, exhaust leaks, and engine problems can trigger these codes. We find the root cause first.
What Customers Say About Our Exhaust Repairs
Rated 5 out of 5 stars.
“Best mechanic shop I have ever dealt with. These folks are so friendly and their work is fantastic always fast, efficient and affordable.”
Victoria B.Google review
Rated 5 out of 5 stars.
“I was very satisfied with the service i received. Staff were very friendly,helpful and professional.”
Royal F.Google review
Signs of a Bad Catalytic Converter
Check engine light with P0420 or P0430 code (catalyst efficiency)
Failed emissions inspection
Rotten egg smell from exhaust (sulfur)
Reduced engine power or acceleration
Poor fuel economy
Rattling noise from under the vehicle (broken substrate)
Dark exhaust smoke
Engine runs rough or misfires
Our Catalytic Converter Replacement Process
1Scan for diagnostic trouble codes (DTCs)
2Analyze oxygen sensor data (upstream vs. downstream readings)
3Check for exhaust leaks that could affect sensor readings
4Verify no misfires or other engine problems causing converter damage
Shop tipCatalyst efficiency codes (P0420/P0430) don't always mean bad converters. We check O2 sensor function, exhaust leaks, and engine health first. Replacing a converter when the real problem is an O2 sensor or exhaust leak wastes your money.
6Inspect converter visually and with infrared thermometer
7If replacement needed, select correct converter type (CARB/EPA compliant)
8Remove old converter and inspect exhaust pipes
9Install new converter with new gaskets and hardware
10Clear codes and verify proper operation with road test
Backed for 12 months or 12,000 miles.
Repairs and services we do with parts we supply are covered for 12 months or 12,000 miles, whichever comes first, on parts and labor. Oil changes, inspections and other basic upkeep aren't covered. If something we fixed isn't right, bring it back.
Choose a coupon, we email you the code, and you show it to us any time before you pay.
New location offer
10% off parts10%offparts
For new and returning customers at our new Arlington shop.
Takes up to $100 off parts on one repair order.
Mention it when you call or any time before you pay.
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Why Choose E1 Auto Care for Exhaust Work
Experienced techniciansYears of hands-on work with all makes and models, domestic and European.
12 months / 12,000 milesRepairs done with our parts are covered on parts and labor, whichever limit comes first.
You see it firstPhotos and videos of what we find, by text or email, before any work starts.
Honest, written estimatesA clear number before we begin, and we tell you what can wait.
Catalytic Converter Replacement FAQ
How Much Does Catalytic Converter Replacement Cost in Arlington, TX?
Catalytic converter replacement cost varies significantly based on your vehicle's requirements. Some vehicles have direct-fit converters that bolt in; others need universal converters welded in place. OEM converters cost more than quality aftermarket units. At E1 Auto Care, we diagnose before replacing—sometimes the converter isn't the real problem.
