1994 Ford Explorer O2 Sensors

16,300 MILES • 6 CYL • 4WD • AUTOMATIC
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TSCHUY3923
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  • 3 POSTS
The Hayes manual says I have only one O2 sensor on my Explorer SUV. Yet the information at AutoZone states that I need to have 2 sensors replaced? How many O2 sensors are on my Explorere?
Feb 18, 2009 at 3:38 AM
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JGAROFALO
  • ✓Experienced Mechanic
  • 489 POSTS
There are 2 sensors. One on each side of the engine. They are located in the exhaust pipe just below the exhaust manifold. You can't take everything you see in a 3rd party manual as accurate. They cover more than one year, and several variations of the car.
Feb 22, 2009 at 12:38 AM
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TSCHUY3923
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Keep getting conflicting answers to my question. Manual says one for the 1994 model and starting in 1995 there were two. A Ford mechanic at another forum group says there is just one on the 1994. AutoZone parts menu system says there are two and now being told here thre are two. Who's correct?

I only see one?

Thanks in advance,
Tim
Feb 22, 2009 at 4:56 AM
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JGAROFALO
  • ✓Experienced Mechanic
  • 489 POSTS
I have a 1993 Explorer. It has TWO sensors. I can't imagine the EPA relaxing emission regulations, and eliminating one of the sensors. The sensors are not in an easy okace to see. They are on the backside of the crossover pipe just a bit down from the manifold connection. Mine has one for each side of the engine. I still think you have two.
Feb 22, 2009 at 1:08 PM
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TSCHUY3923
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Well, I'm about to go in and do the nasty tomorrow and will let everyone know what I've found out. Will take digital photo's for those who may be interested....
Feb 22, 2009 at 4:37 PM
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