Check out this link, this happened to mine Dodge Durango Maintenance and Repair - CarSpace Automotive Forums
A 2007 Durango has four oxygen sensors.
On top of the rear axle. This is from pictures I've seen from guy that replaced their own sensors.
Gas mileage also went down and I just replaced o2 sensors.
It is one of the oxegon sensors, I just replaced one myself on my 97 GTP.
Exhaust manifold(s).
4
All of the engine sensors can affect fuel mileage.
No, different sensors, plugs, bellhousing.
On either side of the catalyitc converters.
They are replaced when they go bad.
Yes.Yes.
yes