Question about 1999 Ford Explorer
The oxygen sensor is located just before the Catalytic Converter on the exaust system. Follow the exuaust system up to the converter and you will see it sticking out with a few wires just before the Catalytic Converter. Although changing it is not all that hard and only takes a few mins the difficult part is getting to it as space is tight. Its a simple 4 wire system that snaps in by wire harness. They range from 40.00 to 99.00 depending where you buy it and if you buy a universal or OEM (Original Equipment Manufacter). I would definatly have your fuel pump checked out as well as well as the fuel filter. Anytime the vehicle looses fuel PSI it could be a pump failure. check all three and you should be all set. It does not sound like a injector failure and is typical of the oxygen sensor.
Best of luck
Posted on May 30, 2009
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Posted on Jan 02, 2017
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