2003 Ford Expedition oxygen sensors

Tiny
CHAINJP
  • MEMBER
  • 2003 FORD EXPEDITION
  • V8
  • 4WD
  • AUTOMATIC
  • 74,000 MILES
What would the problem be if I drove with faulty oxygen sensors? And could the oxygen sensors cause the engine to misfire? And can the octane on the gasoline cause an engine to misfire?
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Thursday, January 31st, 2008 AT 3:58 PM

1 Reply

Tiny
BLACKOP555
  • EXPERT
The oxygen sensors if failing will cause your engine to run rough and give you horrible fuel mileage, and will cause the vehicle to miss.

Too low octane will cause a engine to miss also.
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Thursday, January 31st, 2008 AT 8:33 PM

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