Q: Q: O2 sensors

asked by on

How many upstream and downstream O2 sensors are in my vehicle

My car has 124307 miles.
My car has an automatic transmission.

Hello, thanks for writing in. For your 2002 Ford Expedition, you will have 2 upstream and 2 downstream oxygen sensors. If you need some assistance with these components, consider YourMechanic, as one of our mobile technicians can come to your home or office to replace your oxygen sensors for you.

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. Q: O2 sensors

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: Q: Having trouble shifting out of park

Hello. It sounds like you have an issue with the brake switch. When the switch fails it keeps the shifter from unlocking. The shift interlocking system will not allow the shifter to move unless the brake pedal is applied. I...

Q: Heater will not stay hot

Hello. You are likely facing multiple issues at once. The low coolant would absolutely cause the heater to function intermittently. If you are continuously losing coolant there is likely a leak on the system and it will need to be...

Q: Driver's side window not working correctly

It sounds like the window is physically binding. Look at at the rubber track closely with the window down 1/2 way. Look to see if it has moved or come out of place. The other possibility is the regulator. It...

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
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.