Mercury Grand Marquis 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 Mercury Grand Marquis Catalytic Converter Replacement is $739 with $596 for parts and $142 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1985 Mercury Grand MarquisV8-5.0LService typeCatalytic Converter ReplacementEstimate$2305.49Shop/Dealer Price$2853.74 - $4464.74
1983 Mercury Grand MarquisV8-5.8LService typeCatalytic Converter ReplacementEstimate$1334.85Shop/Dealer Price$1647.96 - $2553.51
1979 Mercury Grand MarquisV8-5.0LService typeCatalytic Converter ReplacementEstimate$2275.49Shop/Dealer Price$2823.76 - $4434.78
1980 Mercury Grand MarquisV8-5.0LService typeCatalytic Converter ReplacementEstimate$2275.49Shop/Dealer Price$2823.73 - $4434.72
1984 Mercury Grand MarquisV8-5.0LService typeCatalytic Converter ReplacementEstimate$2275.49Shop/Dealer Price$2823.79 - $4434.82
1986 Mercury Grand MarquisV8-5.0LService typeCatalytic Converter ReplacementEstimate$2275.49Shop/Dealer Price$2823.76 - $4434.78
1983 Mercury Grand MarquisV8-5.0LService typeCatalytic Converter ReplacementEstimate$2282.99Shop/Dealer Price$2831.06 - $4441.92
1978 Mercury Grand MarquisV8-5.8LService typeCatalytic Converter ReplacementEstimate$1342.35Shop/Dealer Price$1655.82 - $2561.62
Show example Mercury Grand Marquis 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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Real customer reviews from Mercury owners like you.

Excellent Rating

(357)

Rating Summary
336
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3
2
4
336
12
3
2
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Chris

10 years of experience
31 reviews
Chris
10 years of experience
Grand Marquis 2002 - Tie Rod End - Salt Lake City, UT
Doesn't leave work unfinished, in my case he had to go get a part and a specific tool to finish thhe job.

Chris

10 years of experience
31 reviews
Chris
10 years of experience
Grand Marquis 2002 - Brake Pads - Salt Lake City, UT
Very thorough. Nice guy, does good work.

Jason

0 years of experience
417 reviews
Jason
0 years of experience
Grand Marquis 2001 - Air Spring Bag - Phoenix, AZ
came and took care of problem great guy

LAVELL

26 years of experience
129 reviews
LAVELL
26 years of experience
Grand Marquis 2001 - Check Engine Light is on - Oakland, CA
I was pleasantly surprised he was able to show up early. I wish I could figure out what the problem is, but he told me not to worry much and call for an appt if the light comes on again.

Excellent Rating

(357)

Rating Summary
336
12
3
2
4
336
12
3
2
4
Number of Mercury Grand Marquis services completed
3927+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

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