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1999 Ford Explorer O2 SENSOR

Tiny
N84CHRIST
  • MEMBER
  • 1999 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 148,000 MILES
I am having an issue of rough idle. I have replaced the coil pack and plugs and wires. The computer says right side o2 sensor. How many are there and will they make it idle rough also what would make a plug foul out almost immediately.
Wednesday, February 11th, 2009 AT 5:02 PM

1 Reply

Tiny
OBXAUTOMEDIC
  • MECHANIC
  • 3,711 POSTS
Hello,

There are many reasons for a rough running vehicle. However, since you had a plug foul out pretty quick you could possibly have a Fuel Injector Problem.

The O2 sensor there are usually 3 one in each exhaust Manifolld and one just before the Converter.

Check out the links below for more info...

https://www.2carpros.com/first_things/why_does_my_engine_run_rough.htm

https://www.2carpros.com/how_to/how_to_check_fuel_pressure.htm

.
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Wednesday, February 11th, 2009 AT 5:41 PM

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