Skip the auto shop - Our mechanics make house calls

Q: how many o2 sensors does my vehicle have and where are they located?

asked by on

I want to know how many o2 sensors my vehicle has and where are they located

My car has 117000 miles. I have a 2005 Chrysler Pacifica 3.5l V6 My car has an automatic transmission.

Your vehicle uses two oxygen sensors. According to Alldata, there should be one oxygen sensor that is accessed just behind the rear cylinder head, just behind where the coils mount to the valve cover. The other oxygen sensor is mounted near the area that the exhaust pipe exits the bottom of the engine compartment and starts to run towards the back of the vehicle. If you need a hand locating and/or repairing the oxygen sensors, contact a certified mechanic, like those available at YourMechanic.com.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • how many o2 sensors does my vehicle have and where are they located?

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

Get a quote

What others are asking

Q: Transmission fluid leaking

Although it is not entirely possibly to tell without physically inspecting the car, it is possible that the seals in the CV axles may be failing again or have debris in them causing premature failure. Depending on road conditions where...

Q: Car loses power, Check Engine Light is on, codes for EVAP system leak

If you have an air leak in the EVAP system then the MAP sensor will not be able to determine the air density, and the MAF sensor will not be able to determine the volume of air entering the engine...

Q: When I put my car into drive it makes a loud grinding noise and doesnt move.

Hi there. The transmission may have broken the differential or a CV shaft (constant velocity shaft). If a CV shaft was to break, then all of the power will go to the broken shaft. When you said that you stopped...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.