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Were is located the oxigen sensor in expedition 1999

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They are located in the exhaust pipes under the car. There will be two before the catalytic converter and one after the catalytic converter. the two before the cat are usually located closer to the exhaust manifold. The one after the catalytic converter will be right behind it.

Which one do you need to replace?

Posted on Oct 05, 2010

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SOURCE: replacing town car 1999 oxigen sensors. Where is

For 1999 Lincoln Town Car 4.6L SFI 8cyl the Oxygen Sensor is located under vehicle, passenger side, below seating area, mounted in exhaust pipe, keep in mind that you have four O2 sensor.

81f2a22.jpg

Fig. Heated Oxygen Sensor (HO2S) and Catalyst Monitor Sensor-exploded view

I really hope help with this; remember rated this post.

Posted on May 20, 2010

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81f2a22.jpg

Fig. Heated Oxygen Sensor (HO2S) and Catalyst Monitor Sensor-exploded view

I really hope help with this; remember rated this post.

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Hi.
The Oxigen sensor are in diferent kind.
1 -- With a single wire. " is only oxigen sensor"
2 -- With 2 wires " is only oxigen sensor"
3 -- With 3 wires " Is oxigen and heater sensor"
4 -- With 4 wires " is oxigen sensor and heater sensor.
5 -- with 6 wires " is oxigen, heater A/F sensor" normally Nissan)

OK........Your question.
Depend of the year of your car.
But all the car they are Bank 1 or single bank. Engine in line
4 cyl . or 6 cyl. And are identified sensor 1 bank 1 and sensor 2 bank 1. S11 or S21.
But all the Engines in V are bank 1 and bank 2.
Sensor 1 bank 1, sensor 2 bank 1, S11 or S21.
Sensor 1 bank 2, sensor 2 bank 2, S12 or S22.
Sensor one is alway before catalystic.
Sensor two is alway after catalystic.

If you have problen with the oxigen sensor you need to put a scanner to see the number of code, The number of code will give the especific sensor that you need to replace.
The code can be heater or oxigen. and can be refer to a the same sensor.

I hope this information work for youu.
Thank you for use fixya.

Jul 15, 2008 | Chevrolet Malibu Cars & Trucks

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