Cadillac Seville 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 Cadillac Seville Catalytic Converter Replacement is $733 with $638 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1978 Cadillac SevilleV8-5.7LService typeCatalytic Converter ReplacementEstimate$2796.29Shop/Dealer Price$3484.12 - $5508.22
1985 Cadillac SevilleV8-5.7L DieselService typeCatalytic Converter ReplacementEstimate$1370.59Shop/Dealer Price$1707.02 - $2676.87
1980 Cadillac SevilleV8-5.7LService typeCatalytic Converter ReplacementEstimate$2776.29Shop/Dealer Price$3464.15 - $5488.27
1981 Cadillac SevilleV8-6.0LService typeCatalytic Converter ReplacementEstimate$1770.69Shop/Dealer Price$2207.11 - $3477.00
1977 Cadillac SevilleV8-5.7LService typeCatalytic Converter ReplacementEstimate$2776.29Shop/Dealer Price$3464.17 - $5488.32
1984 Cadillac SevilleV8-5.7L DieselService typeCatalytic Converter ReplacementEstimate$1370.59Shop/Dealer Price$1707.02 - $2676.87
1983 Cadillac SevilleV8-4.1LService typeCatalytic Converter ReplacementEstimate$1686.43Shop/Dealer Price$2100.33 - $3303.13
1979 Cadillac SevilleV8-5.7L DieselService typeCatalytic Converter ReplacementEstimate$1375.59Shop/Dealer Price$1712.44 - $2682.59
Show example Cadillac Seville 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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Excellent Rating

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Rating Summary
100
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100
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Joel

30 years of experience
76 reviews
Joel
30 years of experience
Cadillac Seville V8-4.6L - Oil Change - Glendale, Arizona
Very professional and caring. Did an awesome job!

Rigoberto

11 years of experience
739 reviews
Rigoberto
11 years of experience
Cadillac Seville V8-4.6L - Battery - Park Ridge, Illinois
Rigobertos came on time, was professional, thorough in his work. I am very pleased and will continue to use this service. Thank you so much. Everything put back in place. Great Job by a Great Mechanic. :)

Andrew

11 years of experience
337 reviews
Andrew
11 years of experience
Cadillac Seville V8-4.6L - Radiator - Ellicott City, Maryland
Andrew got the job done quicker than expected and did an excellent job. He is honest and knows what he is doing. Even made sure nothing else was wrong with the car before leaving.

Alex

16 years of experience
435 reviews
Alex
16 years of experience
Cadillac Seville V8-4.6L - Check Engine Light is on - Dallas, Texas
Good helpful knowledgeable mechanic

Excellent Rating

(106)

Rating Summary
100
4
0
0
2
100
4
0
0
2
Number of Cadillac Seville services completed
1166+
services done by our mechanics
TOTAL NUMBER OF EXPERT Cadillac MECHANICS
900+
experts on our platform

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