Saturn SW1 Oxygen Sensor Replacement at your home or office.

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

Estimate price near me

Service Location

Customer Ratings

(6)

Included for free with this service

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.

Customer Ratings

(6)

Oxygen Sensor Replacement Service

How much does a Oxygen Sensor Replacement cost?

On average, the cost for a Saturn SW1 Oxygen Sensor Replacement is $197 with $57 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1995 Saturn SW1L4-1.9LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$301.44Shop/Dealer Price$341.65 - $454.18
1995 Saturn SW1L4-1.9LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$259.59Shop/Dealer Price$289.82 - $376.40
1993 Saturn SW1L4-1.9LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$307.65Shop/Dealer Price$349.92 - $472.56
1999 Saturn SW1L4-1.9LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$259.59Shop/Dealer Price$289.85 - $376.44
1998 Saturn SW1L4-1.9LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$259.59Shop/Dealer Price$291.32 - $379.02
1997 Saturn SW1L4-1.9LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$259.59Shop/Dealer Price$289.99 - $376.69
1996 Saturn SW1L4-1.9LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$259.59Shop/Dealer Price$289.86 - $376.47
1996 Saturn SW1L4-1.9LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$297.75Shop/Dealer Price$337.55 - $452.76
Show example Saturn SW1 Oxygen Sensor Replacement prices

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

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Saturn mechanics

Real customer reviews from Saturn owners like you.

Excellent Rating

(6)

Rating Summary
5
1
0
0
0
5
1
0
0
0

Dave

24 years of experience
303 reviews
Dave
24 years of experience
Saturn SW1 L4-1.9L - Oil Change - Santa Cruz, California
Dave is awesome. I had a quote from a local shop here that botched a previous repair job. Dave saved me 534.94$ today by figuring out that it was only the oil filter that had to be replaced.

John

21 years of experience
650 reviews
John
21 years of experience
Saturn SW1 L4-1.9L - Transmission Position Sensor (Switch) - Orlando, Florida
very helpful and courteous

Ejnar

30 years of experience
107 reviews
Ejnar
30 years of experience
Saturn SW1 L4-1.9L - Shift Selector Cable - Hayward, California
I was very, very pleased with the work Ejnar did on my car. He is very knowledgeable, very polite and funny. I would definitely recommend him to any of my friends who needs a mechanic. Great job Ejnar. Thanks so much for getting me back on the road.

Tien

24 years of experience
903 reviews
Tien
24 years of experience
Saturn SW1 L4-1.9L - Other Inspections - Hayward, California
Very professional and experienced. Felt very comfortable with him.

Excellent Rating

(6)

Rating Summary
5
1
0
0
0
5
1
0
0
0
Number of Saturn SW1 services completed
66+
services done by our mechanics
TOTAL NUMBER OF EXPERT Saturn MECHANICS
700+
experts on our platform

Recent articles & questions

How Long Does a Speedometer Sensor Last?
While While a mechanical speedometer will use a speedometer cable attached to the driveshaft and transmission, that’s not the case with an electronic speedometer, such as is used in most modern vehicles. These use a speedometer sensor. It’s mounted to...
How to Replace a Low Oil Level Sensor
A low oil light sensor allows you to know when your oil levels are low. A bad sensor won't be able to alert you, causing wear and damage as you drive.
How Long Does an Air Cleaner Temperature Sensor Last?
An An air cleaner temperature sensor is not overly common on newer vehicles. This is because in order to ensure that your car engine operates the way it should, several electronic sensors may actually be needed. However, if you drive...

ABS ON after 18MPH

The light comes on after 18mph since this is the speed where the ABS will start to work on your car. The light is coming on due to one or more wheel speed sensors (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-wheel-speed-sensor) are not sending a signal...

1990 Porsche 944, starts well, shuts off after a few minutes

After checking for the proper fuel pressure, have an experienced technician inspect the ignition systems, crankshaft position sensor (https://www.yourmechanic.com/services/crankshaft-position-sensor-replacement) and distributor pickup coils. A malfunction here will cause a stall, as these devices help the computer determine when to send...

Crankshaft sensor replacement - 2014 Toyota Avalon

Hi - the crank position sensor on the V6s is located at the "nose" (passenger side) of the engine, way down low. Rather restricted access. Will require safely raising and supporting the car, and access from underneath the engine. If...

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 (855) 347-2779 · hi@yourmechanic.com