Q: How many oxygen sensors do I have on my 2008 Cadillac Escalade EXT?

asked by on

I'm not sure if my truck has 1, 2, 3 or 4 oxygen sensors.

My car has 118000 miles.
My car has an automatic transmission.

Hi there - your Escalade has 4 oxygen sensors total, 1 before each of the two catalytic converters, and 1 after each catalytic converter. Diagnostic codes are usually pretty specific as to which one is malfunctioning (i.e. Bank 1, Sensor 2 for example). For assistance with replacement, I recommend an oxygen sensor replacement performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. How many oxygen sensors do I have on my 2008 Cadillac Escalade EXT?

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: Noise starting car

I'm guessing the bumping noise you're referring to means it clicks and then finally starts. Or possibly that it cranks and then starts? These are two different issues. A click no start indicates a problem in the starting system. A...

Q: What is an ECM-relay and where is it located?

Hey there. The ECM relay on this vehicle is called an auto shutdown relay and is located in the engine compartment integrated power module control box. The P0052 code you are getting is for the passenger side O2 sensor closest...

Q: Car runs rough sometime an engine diagnosis says I have a misfire in three of my six cylinders sometimes car runs smooth other tim

Hello, thank you for writing in. When it comes to a misfire on several cylinders, the vehicle is likely struggling with compression. If the issue was fuel or spark related, the engine would have a misfire code on all cylinders....

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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.