Ford Escort Oxygen Sensor Replacement at your home or office.

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

Get an upfront price

Service Area

Average rating from customers who
received a Oxygen Sensor Replacement.
Learn More

$113.83 - $362.72

Price range for all vehicles


YourMechanic Benefits

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.

Average rating from customers who
received a Oxygen Sensor Replacement.
Learn More


Oxygen Sensor Replacement Estimate for Ford Escort

Ford Escort Oxygen Sensor Replacement costs $173 on average.

CarServiceEstimateShop/Dealer Price
1999 Ford EscortL4-2.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$280.65Shop/Dealer Price$337.64 - $471.32
1981 Ford EscortL4-1.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$505.95Shop/Dealer Price$622.97 - $947.53
1996 Ford EscortL4-1.9LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$246.65Shop/Dealer Price$298.91 - $429.03
1987 Ford EscortL4-2.0L DieselService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$199.55Shop/Dealer Price$238.06 - $328.57
2002 Ford EscortL4-2.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$280.65Shop/Dealer Price$339.99 - $475.43
1990 Ford EscortL4-1.9LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$223.55Shop/Dealer Price$268.81 - $380.69
1999 Ford EscortL4-2.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$244.35Shop/Dealer Price$287.85 - $390.99
1992 Ford EscortL4-1.9LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$237.29Shop/Dealer Price$284.52 - $402.80
Show example Ford Escort Oxygen Sensor Replacement prices

Oxygen Sensor Replacement Service

What is the Oxygen Sensor all about?

With each new model year, manufacturers are adding more oxygen sensors to better manage engine operation. Some high performance engines have an oxygen sensor for each cylinder as well as one for the rear of each catalytic convertor. The sensors are located either underneath the hood or underneath the car. The oxygen sensors are connected (screwed) to the exhaust pipe, either in front or back of the catalytic converter. The front (upstream) sensors measure the amount of oxygen in the exhaust system. The purpose of the front oxygen sensor(s) is to measure how rich or lean the gases are as the gases exit the combustion chamber. Depending upon whether the exhaust gas is lean (high in oxygen content) or rich (low in oxygen content), the amount of fuel entering the engine is adjusted by the engine management computer to try and maintain an ideal mixture that produces the lowest emissions output from the catalytic convertor.

Rear (downstream) sensors are located behind the catalytic converter. The purpose of the rear oxygen sensor(s) is to monitor the oxygen content of the exhaust gases leaving the catalytic convertor.

If one or more of the oxygen sensors are faulty, your car may not pass the emissions test. If you drive your car with a faulty oxygen sensor, you may get poor gas mileage and it can damage the catalytic converter.

Oxygen Sensor-MATROX-1

When replacing the oxygen sensor remember:

  • Many oxygen sensors are damaged by leaking oil or coolant. If that is the case, the cause of that leak needs to be identified and repaired, or else the replacement oxygen sensor will be damaged as well.
  • New vehicles require specific oxygen sensors, and not the universal sensors that were common prior to 1996.

How it's done:

  • Scan the computer in the car for codes.
  • Inspect for vacuum leaks and holes in the exhaust system.
  • Remove and replace the oxygen sensor if it is bad.
  • Check electrical connections.
  • Check for proper operation of oxygen sensors.
  • Clear diagnostic codes.
  • Test drive car.

Our recommendation:

Keep up with the tune-ups. If check engine light is on, don't drive the car too long without getting it inspected. If check engine light is flashing, pull over and get the car towed to avoid costly repairs. Ask the mechanic to inspect the vacuum hoses and leaks in the exhaust system. If the vacuum hose or exhaust system is leaking, it will display an oxygen sensor fault code. Replacing an oxygen sensor may not fix the problem.

What common symptoms indicate you may need to replace the Oxygen Sensor?

  • Check Engine light is on.
  • Car is getting poor gas mileage.
  • Emission test fails.

How important is replacing the oxygen sensor?

Your vehicle has multiple oxygen sensors, and they all help the car run optimally. The front sensors measure how much oxygen is in the exhaust stream to measure how rich or lean the gases leaving the gas chamber are. The rear sensors measure the oxygen content of the gases as they leave the catalytic converter. The oxygen sensors then relay this information to your vehicle’s electronic control unit, so that it can adjust as necessary. Because cars depend on an ideal fuel-to-air ratio to function optimally, the oxygen sensors are leaned on for engine performance. When your oxygen sensors fail your car will run less smoothly, get worse mileage, and have worse emissions.

Fast and easy service at your home or office

GET A QUOTE FOR YOUR CAR

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Ford mechanics

Real customer reviews from Ford owners like you.

Excellent Rating


YourMechanic Ford Escort Service

Average Rating

4.8/5

Number of Reviews

141

Rating Summary
129
6
2
1
3
129
6
2
1
3

Stephen

18 years of experience
3 reviews
Stephen
18 years of experience
Ford Escort - Ignition Switch - North Richland Hills, Texas

Rocco

20 years of experience
302 reviews
Rocco
20 years of experience
Ford Escort - Car is shaking or vibrating - Fontana, California
Rocco was awesome. After a misunderstanding with another mechanic i was quickly referred to Rocco. He called me as soon as he got my appoinment notice to confirm the time. He was prompt and did everything he said he was gona do. I would recommend him 100 times over. Awesome service!!!!!

Matt

13 years of experience
22 reviews
Matt
13 years of experience
Ford Escort - Starter - Tempe, Arizona
Had an absolutely fantastic experience; he went above and beyond to help me install my starter, and was helpful and friendly.

David

26 years of experience
142 reviews
David
26 years of experience
Ford Escort - Inspection / Diagnostics - San Diego, California
David arrived very promptly (actually, early) and was very courteous and honest. Showed me what I needed (burned out wire) along with my alternator. Very convenient service and reasonable pricing. Would use again and would definitely recommend to others. Better than taking it to any shop!!!

Excellent Rating


YourMechanic Ford Escort Service

Average Rating

4.8/5

Number of Reviews

141

Rating Summary
129
6
2
1
3
129
6
2
1
3
Red-stars EXCELLENT RATING ON
Number of Ford Escort services completed
1551+
services done by our mechanics
TOTAL NUMBER OF EXPERT Ford MECHANICS
1300+
experts on our platform

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.

1-800-701-6230 · hi@yourmechanic.com