How many o2 sensors does a 2004 Ford Ranger have?
How many o2 sensors does a 2004 Ford Ranger have? There's 3. Facing the engine there's one in the front coming off of the front header, which is easy to get to. Another more tricky one if between the engine and the fire wall on the rear header pipe. The third is under the vehicle behind the transmission pan on top of the exhaust. What happens when the O2 sensor goes bad on a Ford Ranger? When an O2 (oxygen) sensor go bad, it’ll cause your Ford Ranger ‘s engine to run less efficiently. Your Ranger can exhibit symptoms when...