Question about 1997 Ford Expedition
Air Filter, Fuel Filter,Plugs,Idles Solenoid or Valve, not the issue.
Use logic and know what the parts your about to change do!
O2 Sensors are in the converters or exhaust pipes near it.
The Codes don't mean there bad or to replace something. That is not what codes are for.
While you may have a worn O2 Sensor,you may also have a vacuum leak, that is driving the sensor out of range and setting the codes.
You never said what your drivability issues were!!
Posted on Aug 27, 2010
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Posted on Jan 02, 2017
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