Q: Replacement oxygen sensor going dead

asked by on January 22, 2016

My replacement oxygen sensor keeps going dead at stop lights.

Oxygen Sensor Replacement $123.80 - $932.74 Get a Quote

Hello. I need more information in order to pinpoint this concern as your vehicles V6 engine comes equipped with 4 oxygen sensors. I need to know whether or not the concern is turning on the Check Engine light, making the vehicle run rough, maybe an audible noise whenever this happens. Generally, a failing oxygen sensor will illuminate the check engine and/or cause some drivability concern such as running rough or poor fuel economy. I recommend you start by going to the shop that replaced the sensor and check for a possible warranty. Since you mentioned it was a replacement sensor, it may be a defected part. If there is no warranty on the part, I would have your vehicle inspected by a mechanic, such as one from YourMechanic, and having the sensor replaced if needed.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Rear differential humming
Hi there. A humming noise usually indicates a worn pinion bearing or an incorrect backlash setting on the rear differential between the ring and pinion gear. Sometimes, if the pinion bearing develops play due to wear, the pinion gear will...
Goes in gear but goes no where. Bleed the clutch
This sounds like you have a bad clutch or transmission input shaft is not turning for some reason. You should have the transmission removed to have the transmission and clutch checked to isolate the cause of the no clutch engagement....
This keeps happening on and off when the light comes on and say power trans safe mode and. Then the car runs slow how do you fix it
Hello. Without further detail as to the specific make and model of your car, it may be difficult to diagnose. However, most cars have a "safe mode" or limp mode" that the transmission ECU will enable when either the transmission...
Could the power steering pressure sensor cause my steering wheel to be hard or hard to steer?
Hello. The pressure switch (or "sensor") (https://www.yourmechanic.com/services/power-steering-pressure-switch-replacement) on your vehicle supplies a signal to the engine computer to increase engine idle speed as the power steering line pressure increases. If the switch were bad, what you would notice is the...
Where is the MAP/Turbocharger boost sensor located?
Hi there. The MAP/Turboboost sensor (https://www.yourmechanic.com/services/manifold-absolute-pressure-sensor-map-sensor-replacement) is located either on the intake near the throttle body or along the fire wall with a vacuum hose attached to it. If you need further assistance locating the MAP/Turboboost sensor, then seek out...
Car shudders and hesitates when accelerating from a stop
This may be related to a few different things, such as low fuel pressure or a bad mass air flow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement). Low fuel pressure may cause the car to shudder if it is starving for fuel when trying to...
Can you diagnose my car without a check engine light?
Hi there. In short, yes; it's possible to diagnose a problem with a vehicle even if the check engine light does not illuminate. A professional mechanic would start by downloading any error codes store in your 2005 Ford Explorer's computer....
My cadillac cts has been jerk when I start to slow down it has been idling real hi and it almost feels like it is sla
This kind of reaction is often a sign of low transmission fluid (https://www.yourmechanic.com/services/transmission-fluid-service) or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's...
Turn signals
Try to turn on and off the 4 way flasher switch several times and then leave off then try turn signals again. If they still act up then you most likely have a bad turn signal switch internally shorted.

Related articles

Can Sensors Be Cleaned or Do They Need to Be Replaced?
In In most cases, sensors for your automobile will need to be replaced if they fail, but depending on the type of sensor and its location or function, some can be cleaned and reused (https://www.yourmechanic.com/question/can-sensors-be-cleaned-or-do-they-need-to-be-replaced). Sensors can come in many...
How Long Does a Yaw Rate Sensor Last?
While While taking a curve at a high rate of speed seems like fun, it can also be quite dangerous. Luckily, there are a number of systems on a car that can make taking hairpin turns quickly much safer. The...
How to Replace an Air Fuel Ratio Sensor
The air fuel ratio sensor fails within a vehicle if the check engine light comes on. Poor engine performance results from oxygen sensor failure.