GMC G3500 Catalytic Converter Replacement at your home or office.

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Catalytic Converter Replacement Service

How much does a Catalytic Converter Replacement cost?

On average, the cost for a GMC G3500 Catalytic Converter Replacement is $986 with $891 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1984 GMC G3500V8-6.2L DieselService typeCatalytic Converter ReplacementEstimate$1897.11Shop/Dealer Price$2352.64 - $3696.73
1984 GMC G3500L6-4.1LService typeCatalytic Converter ReplacementEstimate$1877.11Shop/Dealer Price$2332.66 - $3676.76
1988 GMC G3500V6-4.3LService typeCatalytic Converter ReplacementEstimate$1877.11Shop/Dealer Price$2332.66 - $3676.76
1981 GMC G3500V8-5.7LService typeCatalytic Converter ReplacementEstimate$2776.29Shop/Dealer Price$3456.61 - $5475.08
1987 GMC G3500V8-6.2L DieselService typeCatalytic Converter ReplacementEstimate$1877.11Shop/Dealer Price$2332.67 - $3676.79
1979 GMC G3500V8-5.7LService typeCatalytic Converter ReplacementEstimate$2776.29Shop/Dealer Price$3456.63 - $5475.12
1979 GMC G3500V8-6.6LService typeCatalytic Converter ReplacementEstimate$1882.11Shop/Dealer Price$2337.52 - $3681.52
1982 GMC G3500L6-4.1LService typeCatalytic Converter ReplacementEstimate$1882.11Shop/Dealer Price$2337.89 - $3682.18
Show example GMC G3500 Catalytic Converter Replacement prices

What is the Catalytic Converter all about?

The catalytic converter is an emissions related component that is mounted in the exhaust pipe. Its purpose is to superheat unburned particles in the exhaust gases that are expelled from the engine. As the engine runs, the catalytic converter warms up to an operating temperature of 500-1200 °F. At this temperature the particles in the ‘dirty’ exhaust are burned and converted into water vapor and carbon dioxide. The catalyst inside is nearly always comprised of precious metals such as platinum, rhodium, or palladium. When the catalyst isn’t able to burn off the unburned hydrocarbons in the exhaust, an unpleasant odor can occur, a rough run or misfire may be felt, or the Check Engine light may illuminate.

Keep in mind:

  • Most cars will require the aftermarket Catalytic Converter to be welded to the exhaust pipes. Mobile mechanics can only do this service if you have a direct fit catalytic converter bought from a dealer.
  • When replacing the catalytic converter, it may be necessary to replace oxygen sensors as well.
  • Catalytic converter symptoms are often similar to other more straightforward issues. Get the Check Engine light diagnosed anytime it illuminates.

How it's done:

  • The vehicle is raised and supported on jack stands
  • The defective catalytic converter is removed
  • The new catalytic converter is installed and the vehicle is started to check for any leaks
  • The vehicle is lowered off the jack stands
  • The vehicle is road tested for proper operation

Our recommendation:

If you are consistently taking short trips with your vehicle, the catalytic converter may not be getting hot enough to completely burn away the hydrocarbons. To prevent the catalytic converter from getting clogged, take your vehicle for the occasional drive on the highway for 15 minutes. This allows the exhaust to sufficiently heat up and burn off any deposits in the catalytic converter.

What common symptoms indicate you may need to replace the Catalytic Converter?

  • Check engine light is on or flashing
  • Car has little or no power
  • Smell of rotten eggs inside the car or out of the exhaust
  • Poor fuel economy
  • Backfiring and rough running

How important is this service?

If the catalytic converter isn’t operating efficiently, the check engine light will come on and your engine can begin to lose performance. If the catalytic converter becomes plugged, the engine light will begin to flash and your engine may stall or no longer start. In extreme cases where the converter is plugged, the excess back pressure created can actually cause internal engine damage. If you are experiencing symptoms related to catalytic converter failure, get it checked soon.

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William

34 years of experience
546 reviews
William
34 years of experience
GMC G3500 V8-5.7L - Spark Plugs - Peoria, Arizona
William was a fantastic mechanic and was very informative and courteous. He is definitively an asset to your company.

Dellano

18 years of experience
520 reviews
Dellano
18 years of experience
GMC G3500 V8-5.7L - Parking brake is stuck - Washington, District of Columbia
Figured out the problem right away that there is no problem with the brakes system.

Derrick

11 years of experience
174 reviews
Derrick
11 years of experience
GMC G3500 V8-5.7L - Car Starter Repair - Alameda, California
Derrick showed up on time and completed the job on time and is a nice man.

Robert

20 years of experience
1111 reviews
Robert
20 years of experience
GMC G3500 V8-7.4L - Car is not starting - Denver, Colorado
He did a great job.

Excellent Rating

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Number of GMC G3500 services completed
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services done by our mechanics
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