GMC G3500 Catalytic Converter Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(4)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(4)

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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert GMC mechanics

Real customer reviews from GMC owners like you.

Excellent Rating

(4)

Rating Summary
4
0
0
0
0
4
0
0
0
0

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

(4)

Rating Summary
4
0
0
0
0
4
0
0
0
0
Number of GMC G3500 services completed
44+
services done by our mechanics
TOTAL NUMBER OF EXPERT GMC MECHANICS
900+
experts on our platform

Recent articles & questions

Symptoms of a Bad or Failing Door Latch
If a car door will not stay closed, must be slammed hard to close, or gets stuck and will not open, you may need to replace the door latch.
What are the Car Pool Rules in New Hampshire?
Car Car pool lanes have become increasingly popular in the United States, with thousands of miles of them spanning many of the country’s states. These lanes help people who are carpooling – primarily workers sharing rides to work – and...
P0290 OBD-II Trouble Code: Cylinder 10 Contribution/Balance Fault
P0290 code means that the cylinder is contributing less power and that there is a fuel delivery problem due to a faulty or clogged fuel injector.

No spark to coil pack or wires

Hello. The problem is most likely the engine crank sensor or CKP for short. The CKP measures engine speed and notifies the engine's computer when the engine is at #1 cylinder top dead center so it knows when to fire...

what could be causing the drain on the battery

Depending on the van and its accessories the first thing to do is to look and see if the interior lights or hood light are staying on. Take the bulb out of the hood light and see if the draw...

Changed bypass hose now engine overheats

Hello there, a few common faults will result in your 2003 Hyundai overheating after the bypass hose was replaced. The most common would be air trapped in the coolant system. This is common after repairs have been performed if the...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com