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      Your concern might be complex to diagnose and may require additional equipment to pinpoint the cause. In this case, you'll receive Digital Inspection results plus a quote to perform deeper diagnostic/test procedures.

      Top 20 Catalytic converter replacement Shops in New York (page #5)

      Middle Country Automotive II

      Middle Country Automotive II

      4.9
      Good Standing
      Mo-Fr 8:00 AM – 6:00 PM
      Sa 8:00 AM – 2:00 PM
      Su Closed
      Jim White's Truck & Auto Center

      Jim White's Truck & Auto Center

      4.9
      Good Standing
      Mo-Fr 9:00 AM – 5:00 PM
      Sa 10:00 AM – 1:00 PM
      Su Closed
      Denners Garage Inc

      Denners Garage Inc

      4.9
      Good Standing
      Mo-Fr 8:00 AM – 5:00 PM
      Sa-Su Closed
      Gil's Garage Inc. - Burnt Hills

      Gil's Garage Inc. - Burnt Hills

      4.9
      Good Standing
      Mo-Fr 7:00 AM – 7:00 PM
      Sa-Su Closed
      Bruce's Automotive

      Bruce's Automotive

      4.9
      Good Standing
      Mo-Fr 8:30 AM – 5:30 PM
      Sa-Su Closed
      Quinn Tire and Service/Quinn Motor Car Inc

      Quinn Tire and Service/Quinn Motor Car Inc

      4.9
      Good Standing
      Mo-Th 8:00 AM – 6:00 PM
      Fr 8:00 AM – 5:00 PM
      Sa 8:00 AM – 4:00 PM
      Su Closed
      Abbott Automotive And Tire

      Abbott Automotive And Tire

      4.9
      Good Standing
      Mo-Fr 8:00 AM – 5:00 PM
      Sa-Su Closed
      Ruge's Ford Service Center

      Ruge's Ford Service Center

      4.9
      Good Standing
      Mo-Fr 7:30 AM – 5:30 PM
      Sa 8:00 AM – 2:00 PM
      Su Closed
      Romeo Toyota - SERVICE

      Romeo Toyota - SERVICE

      4.9
      Good Standing
      Mo-Fr 8:00 AM – 5:00 PM
      Sa 8:00 AM – 2:00 PM
      Su Closed
      Ultimate Auto Service

      Ultimate Auto Service

      4.9
      Good Standing
      Mo-Fr 7:30 AM – 5:00 PM
      Sa 7:30 AM – 2:00 PM
      Su Closed
      North Road Auto

      North Road Auto

      4.9
      Good Standing
      Mo-Fr 8:00 AM – 5:00 PM
      Sa-Su Closed
      Desilva Motorsports

      Desilva Motorsports

      4.9
      Good Standing
      Mo-Fr 8:00 AM – 6:00 PM
      Sa 8:00 AM – 12:00 PM
      Su Closed
      Andy's Woodfield Service

      Andy's Woodfield Service

      4.9
      Good Standing
      Mo-Fr 7:00 AM – 6:00 PM
      Sa 8:00 AM – 4:00 PM
      Su Closed
      Howell Motors Inc Service

      Howell Motors Inc Service

      4.9
      Good Standing
      Mo-Fr 8:00 AM – 4:30 PM
      Sa-Su Closed
      Steve's Equipment Co

      Steve's Equipment Co

      4.9
      Good Standing
      Mo-Fr 8:00 AM – 5:00 PM
      Sa-Su Closed
      Sammy's Auto Repair

      Sammy's Auto Repair

      4.9
      Good Standing
      Mo-Fr 8:00 AM – 6:00 PM
      Sa-Su Closed
      Tire King Tire & Auto Repair

      Tire King Tire & Auto Repair

      4.9
      Good Standing
      Mo-Fr 8:00 AM – 5:00 PM
      Sa-Su Closed
      Schoen Auto

      Schoen Auto

      4.9
      Good Standing
      Mo-Fr 8:00 AM – 5:00 PM
      Sa-Su Closed
      Mobile mechanic

      Mobile mechanic

      4.9
      Good Standing
      Mo-Su Open 24 hours
      European Auto Service

      European Auto Service

      4.9
      Good Standing
      Mo-Fr 8:00 AM – 6:00 PM
      Sa 8:00 AM – 3:00 PM
      Su Closed
      Four common causes for a “check engine” light on the vehicle and their related parts.
      This fix will help eliminating

      Check Engine Light

      The yellow check engine light commonly warns that the engine releases more emissions than expected often due to a catalytic converter failure This causes engine misfires poor fuel mileage low power and more But there are alternative common causes for this issue The most common causes for the Check Engine light are Engine misfire When an engine misfires it fails to ignite the airfuel mixture properly leading to a loss of power and rough running The onboard diagnostics system detects this issue a... Learn More about the Symptom

      Other Vehicle Symptoms

      Below are just a few examples of typical Symptoms and Fixes your car might be experiencing

      Other Fixes that either are related or dependent on Catalytic converter replacement

      Below you can find information about other fixes

      Select the state and town where this fix should be performed

      Catalytic converter replacement by city

      Symptoms of bad Catalytic Converter

      A bad catalytic converter causes your vehicle to smell like rotten eggs (it releases toxic fumes), also making the engine perform worse and messing with the fuel economy. The catalytic converter is like the car's air purifier, it turns most of the toxic fumes from the engine's combustion into safer-to-breathe air. This air is then released through the exhaust. Catalytic converters are required by law because of environmental actions; a faulty one can also cause problems to your vehicle's engine. Let's see the symptoms of a bad catalytic converter in better detail.

      1. Check Engine Light Comes On

      One of the first signs of a bad catalytic converter is the Check Engine Light turning on. The vehicle’s oxygen sensors monitor exhaust gases before and after they pass through the catalytic converter. If the converter isn’t working properly, the sensors detect abnormal emissions levels and trigger the warning light. A diagnostic scan tool can confirm if the issue is related to the catalytic converter by checking for trouble codes like P0420 (Catalyst System Efficiency Below Threshold).

      2. Reduced Engine Performance

      A clogged or failing catalytic converter can cause a noticeable drop in engine performance. You might experience sluggish acceleration, difficulty reaching higher speeds, or a general feeling of the engine struggling to breathe. This happens because the converter is restricting the flow of exhaust gases, creating backpressure that reduces power and efficiency.

      3. Poor Fuel Economy

      A failing catalytic converter can lead to poor fuel efficiency. When the converter is clogged, the engine has to work harder to push exhaust gases through, burning more fuel in the process. You might notice you're visiting the gas station more often, even though your driving habits haven’t changed.

      4. Rattling Noise from Under the Vehicle

      If the internal components of the catalytic converter break apart, you may hear a rattling noise coming from underneath the vehicle, especially when starting the engine or accelerating. This sound is caused by loose, broken pieces of the converter’s ceramic honeycomb structure. Ignoring this can lead to further damage, as the debris can block exhaust flow entirely.

      5. Rotten Egg Smell (Sulfur Odor)

      A strong rotten egg or sulfur-like smell from the exhaust is a classic sign of a failing catalytic converter. This odor occurs when the converter is no longer able to properly process hydrogen sulfide in the exhaust into odorless sulfur dioxide. The unprocessed gases escape through the tailpipe, producing a distinct foul smell.

      6. Failed Emissions Test

      A faulty catalytic converter can cause your vehicle to fail an emissions test. The converter’s main job is to reduce harmful emissions like carbon monoxide, nitrogen oxides, and hydrocarbons. When it’s not working correctly, the vehicle releases excessive pollutants into the atmosphere, leading to a failed inspection.

      7. Engine Misfires or Stalling

      A clogged catalytic converter can cause engine misfires or even stalling. When the exhaust gases can’t escape properly, they disrupt the air-fuel mixture and combustion process, leading to incomplete combustion or misfires. This can cause the engine to run rough, hesitate, or stall altogether, especially during acceleration or idling.

      8. Excessive Heat from Under the Vehicle

      A failing catalytic converter can cause the underside of the vehicle to become extremely hot. You may even notice heat radiating through the floorboards. This happens because exhaust gases are trapped inside the converter, causing it to overheat. In severe cases, this can lead to a glowing red converter or even a fire hazard if left unchecked.

      9. Dark or Discolored Exhaust Smoke

      A malfunctioning catalytic converter can cause dark or black exhaust smoke. This happens because the converter isn’t effectively reducing hydrocarbon and carbon monoxide emissions, allowing unburned fuel and other pollutants to exit through the exhaust. You may also notice an increase in visible soot around the tailpipe.

      10. Hard Starting or No Start

      In extreme cases, a completely clogged catalytic converter can prevent the engine from starting at all. Without proper exhaust flow, the engine can’t function correctly, leading to hard starts or a no-start condition. If your vehicle cranks but won’t start, and you’ve ruled out other issues, the catalytic converter could be the culprit.

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