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Mercury Cougar Oxygen Sensor Replacement

As is always the case, the cost of the repair depends on the make, model, and year of your car.

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$90.58 $1010.5
Average Shop Price $428
RepairSmith Price $243
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This range covers an average oxygen sensor replacement. Tell us your car to get a guaranteed price from RepairSmith.

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Mercury Cougar Oxygen Sensor Replacement

RepairSmith offers upfront and competitive pricing. The average cost for Mercury Cougar Oxygen Sensor Replacement is $146. Drop it off at our shop and pick it up a few hours later, or save time and have our Delivery mechanics come to you.

Car
Location
Quoted on
Price
1995 Mercury Cougar
4.6L V8 XR-7 • 20,000 miles
Riverside CA 92508
Nov 19, 2020
$126 - $154
1996 Mercury Cougar
3.8L V6 XR-7 • 101,000 miles
Escondido CA 92030
Nov 19, 2020
$131 - $160
2001 Mercury Cougar
2.0L L4 Base • 45,000 miles
San Jose CA 95118
Nov 17, 2020
$127 - $155
1999 Mercury Cougar
2.5L V6 V6 • 223,000 miles
Malibu CA 90265
Nov 12, 2020
$130 - $158
1995 Mercury Cougar
3.8L V6 XR-7 • 295,000 miles
Artesia CA 90701
Nov 12, 2020
$133 - $163
2001 Mercury Cougar
2.0L L4 Base • 214,000 miles
Berkeley CA 94704
Nov 10, 2020
$138 - $168
1997 Mercury Cougar
3.8L V6 XR-7 • 285,000 miles
Cardiff By The Sea CA 92007
Nov 5, 2020
$133 - $163
2000 Mercury Cougar
2.0L L4 Base • 124,000 miles
Weed CA 96094
Nov 4, 2020
$124 - $152
2001 Mercury Cougar
2.0L L4 Base • 71,000 miles
San Diego CA 92101
Nov 3, 2020
$140 - $172
1996 Mercury Cougar
3.8L V6 XR-7 • 181,000 miles
San Francisco CA 94188
Oct 31, 2020
$131 - $160
Last Updated:
Dec 17, 2020 6:25 PM
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What is an Oxygen Sensor?

Would you be shocked if I said it’s a sensor to measure oxygen? Okay, but it’s a bit more than that. Cars have both upstream and downstream sensors (also known as O2 sensors). Upstream oxygen sensors are placed in front of the catalytic converter, and measure the amount of oxygen in the exhaust. The car’s computer then uses that data to determine the proper air to fuel ratio.  Downstream oxygen sensors are located behind the catalytic converter, and measure the efficiency of the converter.

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Signs of a faulty Oxygen Sensor

Poor performance

No one likes poor performance. That includes you, and it certainly includes your car. Faulty O2 sensors will feed misinformation to your car’s computer. The computer will then alter the engine in a way that leads to less power, some hesitation and jerkiness, and running rough. Which means you’ll be embarrassed the next time you try to show off at a green light.

Check engine light

Oh, the check engine warning light. That light that you pretend isn’t there when it lights up. How has that worked out for you? Try as you might, ignoring a check engine light won’t make it go away. And oxygen sensor failure is a common cause of the light illuminating.

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How urgent is an Oxygen Sensor replacement?

You’re not really in any danger driving around with a busted O2 sensor. Your car will still be safe to drive. But the performance won’t be ideal, and you may fail an emissions test. You don’t need to drop everything and run straight to a repair, but get around to it when you can.

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