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.
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