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Exhaust and Emissions Front Oxygen Sensor Replacement

Ford Expedition Front Oxygen Sensor Replacement

An oxygen sensor replacement is usually a pretty straightforward and affordable task. We stress the term usually because replacement cost can vary, depending on what type of car you have.

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Range for All Cars

$90.58 $1010.5

This range covers an average Front Oxygen Sensor replacement per set. Tell us your car to get a guaranteed price from RepairSmith.

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Ford Expedition Front Oxygen Sensor Replacement

RepairSmith offers upfront and competitive pricing. The average cost for Ford Expedition Front Oxygen Sensor Replacement is $112. 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
Quoted to
Drop-off
Delivery
Price
2004 Ford Expedition 5.4L V8 XLT
100,000 miles
Johnny H  • 
September 7, 2020 3:03 PM  • 
Lynwood CA 90262
$91
0.90  hrs
0.80  hrs
2003 Ford Expedition 5.4L V8 Eddie B...
270,000 miles
Raymond M  • 
July 10, 2020 7:18 PM  • 
Sacramento CA 95841
$99
4.10  hrs
0.70  hrs
2000 Ford Expedition 5.4L V8
119,000 miles
Chico R  • 
July 3, 2020 10:25 PM  • 
Valley Village CA 91607
$112
5.10  hrs
0.80  hrs
2003 Ford Expedition 5.4L V8
223,555 miles
Mon N  • 
June 17, 2020 8:04 AM  • 
Walnut CA 91789
$99
2.70  hrs
0.50  hrs
2000 Ford Expedition 5.4L V8
230,000 miles
Anthony C  • 
May 17, 2020 7:02 PM  • 
Hawthorne CA 90250
$112
2.50  hrs
0.60  hrs
2007 Ford Expedition 5.4L V8
200,000 miles
Scott M  • 
May 14, 2020 9:00 AM  • 
Scottsdale AZ 85250
$108
2.10  hrs
0.70  hrs
2004 Ford Expedition 5.4L V8 XLT
265,647 miles
Adrienne H  • 
April 17, 2020 2:40 PM  • 
Elk Grove CA 95757
$94
3.00  hrs
0.90  hrs
1999 Ford Expedition 4.6L V8
189,000 miles
Frank G  • 
March 4, 2020 1:00 PM  • 
Torrance CA 90504
$106
3.90  hrs
0.80  hrs
1997 Ford Expedition 5.4L V8
148,000 miles
Michael S  • 
March 1, 2020 8:12 PM  • 
Las Vegas NV 89107
$91
1.40  hrs
0.90  hrs
2005 Ford Expedition 5.4L V8
100,800 miles
Ramon F  • 
February 29, 2020 9:46 PM  • 
South Gate CA 90280
$132
2.50  hrs
0.60  hrs
2002 Ford Expedition 5.4L V8
220,228 miles
Miguel S  • 
January 30, 2020 2:44 AM  • 
Burlingame CA 94010
$129
4.20  hrs
1.00  hrs
2002 Ford Expedition 5.4L V8
220,228 miles
Miguel S  • 
January 30, 2020 2:43 AM  • 
Burlingame CA 94010
$129
4.00  hrs
1.00  hrs
2005 Ford Expedition 5.4L V8
218,000 miles
Wendell S  • 
January 14, 2020 8:59 PM  • 
Moreno Valley CA 92553
$117
4.50  hrs
0.60  hrs
1997 Ford Expedition 5.4L V8
200,000 miles
Ray H  • 
December 11, 2019 5:00 PM  • 
Rancho Cucamonga CA 91701
$109
4.60  hrs
0.90  hrs
2004 Ford Expedition 5.4L V8
163,000 miles
Katherine i S  • 
November 23, 2019 10:00 AM  • 
La Mirada CA 90638
$105
5.40  hrs
0.90  hrs
2004 Ford Expedition 5.4L V8
163,000 miles
Katherine i S  • 
November 23, 2019 1:03 AM  • 
La Mirada CA 90638
$105
5.50  hrs
0.70  hrs
2000 Ford Expedition Eddie Bauer
200,000 miles
Shelly D  • 
August 29, 2019 5:17 PM  • 
Richmond CA 94804
$114
4.20  hrs
0.70  hrs
2001 Ford Expedition XLT
199,000 miles
Theodis H  • 
August 27, 2019 3:51 PM  • 
Olathe KS 66061
$157
3.30  hrs
0.70  hrs
2003 Ford Expedition Eddie Bauer
200,000 miles
Barry H  • 
July 1, 2019 3:24 AM  • 
Huntington Park CA 90255
$114
5.50  hrs
0.70  hrs
2004 Ford Expedition Eddie Bauer
195,206 miles
David G  • 
June 28, 2019 9:00 AM  • 
Escondido CA 92025
$99
3.30  hrs
0.80  hrs
Last Updated:
Sep 11, 2020 3:48 PM
Get A Quote 12-Month | 12,000-Mile Warranty

What is a Front Oxygen Sensor?

This might blow your mind but…oxygen sensors (O2s) are sensors that measure oxygen. Yep, the sensors calculate the amount of oxygen in the exhaust stream, then share that information with your car’s main computer.

Most modern cars have at least two oxygen sensors: one before the catalytic converter and one after the catalytic converter. In case you were wondering, the catalytic converter, which is located in the exhaust system, is an emissions control device that cleans up the fumes leaving your engine.

Anyhow, the front oxygen sensor (also known as an upstream oxygen sensor) is a key input to your car’s computer for fuel control. The computer uses information from the sensor to estimate the engine’s air-fuel mixture. Then, it adjusts fuel delivery accordingly.

On the other hand, the rear oxygen sensor (also known as a downstream oxygen sensor) primarily monitors the performance of the catalytic converter. The rear sensor has very little, if any, input regarding fuel control.

Oh, and one more thing – most modern oxygen sensors have built-in heaters. When you first start your engine when it’s cold, the heater element gets the sensor nice and toasty. That allows the sensor to get up-to-speed and begin operating more quickly.

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Symptoms of a Failing Front Oxygen Sensor

Check engine light

If your car’s oxygen sensor isn’t doing its job, chances are, the computer will notice and turn on the check engine light. The device will also store corresponding diagnostic trouble codes (DTCs) in its brain. Your mechanic can retrieve said codes using an electronic device, called a scan tool.

Poor engine performance

The front oxygen sensor is a primary input to your car’s computer for fuel control. And guess what that means? If the sensor is out to lunch, the computer may end up giving your engine too much or too little fuel. As a result, you may experience performance problems, such as rough running, lack of acceleration and stalling.

Reduced fuel economy

As was mentioned, the front oxygen sensor is a key input to your car’s computer for fuel control. As such, it can confuse the computer and cause it to throw the engine’s air-fuel ratio out of whack, killing your gas mileage.

Get a Quote 1-Year | 12,000-Mile Warranty

How urgent is Front Oxygen Sensor Replacement?

Typically, a bad front oxygen sensor won’t leave you stranded. But it can cause your car to run poorly. Although somewhat rare, a faulty oxygen sensor can also damage other components, such as the catalytic converter. And trust us, catalytic converters are expensive. So, you don’t want to be buying a new one.

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Get a Quote 1-Year | 12,000-Mile Warranty

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