Oxygen Sensor Replacement at your home or office.

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Oxygen Sensor Replacement Estimate for Saturn Relay

Saturn Relay Oxygen Sensor Replacement costs $171 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$147 to $205
Labor: $70 -$80
Parts: $77 -$125
Average Dealer price
$247 to 343
Average Shop price
$179 to 239
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2006 Saturn RelayV6-3.9LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$204.91Shop/Dealer Price$253.16 - $365.23
2005 Saturn RelayV6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$202.41Shop/Dealer Price$250.10 - $360.36
2007 Saturn RelayV6-3.9LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$202.41Shop/Dealer Price$250.06 - $360.28
2006 Saturn RelayV6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$202.41Shop/Dealer Price$250.08 - $360.31
2006 Saturn RelayV6-3.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$153.00Shop/Dealer Price$188.28 - $261.43
2007 Saturn RelayV6-3.9LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$153.00Shop/Dealer Price$188.26 - $261.40
2005 Saturn RelayV6-3.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$153.38Shop/Dealer Price$188.84 - $262.33
2006 Saturn RelayV6-3.9LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$151.46Shop/Dealer Price$186.42 - $258.45
Show example Saturn Relay Oxygen Sensor Replacement prices

Oxygen Sensor Replacement Service & Cost

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

Keep in mind:

  • 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 this service?

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 Oxygen Sensor Replacement service at your home or office.

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Meet some of our expert Saturn mechanics

Real customer reviews from Saturn owners like you.

344 reviews
Robert
26 years of experience
Robert called before coming to confirm the appointment and also services required. He arrived on time and performed the repairs. He had no issues in using parts provided by me. Overall pretty much satisfied with the service.
1998 SATURN SL2 - WINDOW REGULATOR REPLACEMENT (DRIVER SIDE FRONT)
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212 reviews
Enrique
16 years of experience
It's great to have your own mechanic and Enrique is a professional. He shows up on time, promptly gets to the job you've shceduled and completes it quickly. He then takes the car for a test run to make sure he's done the job in the best way possible. He's friendly, polite and knows his cars - couldn't ask for better service! So happy I found Your Mechanic! In the past I would take the car in and sometimes have to leave it because they couldn't get to my car with all the others ahead of it. Love the ease of being able to schedule Enrique and know he'll show up and get the job done and I'll be driving my car again in a few hours! And I don't have to drop it off or wait in a waiting room for it.
2002 SATURN SL1 - BRAKE DRUM REPLACEMENT
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105 reviews
Alfredo
16 years of experience
isolated the problem, bad wiper motor, and replaced it the next day. Very methodical in his work. Took great care not to damage the car during disassembly and reassembly. Lots of parts had to be removed to get to wiper motor. He knew what he was doing and how to do it. Good Job!!
1997 SATURN SL2 - WIPERS ARE NOT WORKING INSPECTION
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64 reviews
William
13 years of experience
Showed up on time, very knowledgeable and worked quickly. All around good experience! Thank you!
2007 SATURN VUE - BRAKE PADS REPLACEMENT (FRONT)
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Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2006 Saturn RelayV6-3.9LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$204.91Shop/Dealer Price$253.16 - $365.23
2005 Saturn RelayV6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$202.41Shop/Dealer Price$250.10 - $360.36
2007 Saturn RelayV6-3.9LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$202.41Shop/Dealer Price$250.06 - $360.28
2006 Saturn RelayV6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$202.41Shop/Dealer Price$250.08 - $360.31
2006 Saturn RelayV6-3.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$153.00Shop/Dealer Price$188.28 - $261.43
2007 Saturn RelayV6-3.9LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$153.00Shop/Dealer Price$188.26 - $261.40
2005 Saturn RelayV6-3.5LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$153.38Shop/Dealer Price$188.84 - $262.33
2006 Saturn RelayV6-3.9LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$151.46Shop/Dealer Price$186.42 - $258.45
Show example Saturn Relay Oxygen Sensor Replacement prices

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