Menu

1A Auto Video Library
Our how-to videos have helped repair over 100 million vehicles

How to Replace O2 Down Stream Oxygen Sensor 98-12 Ford Ranger

Share on:
  1. step : Removing the O2 Sensor (0:47)
    • Disconnect the wiring harness
    • Remove the O2 sensor with a 22mm wrench
  2. step : Installing the O2 Sensor (1:30)
    • Install the O2 sensor into place
    • Connect the wiring harness

Hi, I'm Mike from 1AAuto. We've been selling auto parts for over 30 years! We're dedicated to delivering quality auto parts, expert customer service, and fast and free shipping, all backed by our 100% satisfaction guarantee. So visit us at 1AAuto.com, your trusted source for quality auto parts.

In this video, we're going to be working with our 2001 Ford Ranger, 4.0-liter V6. We're going to show you how to remove and replace your rear or downstream O2 sensor.

If you like this video, please click "subscribe." We have a ton more information on this vehicle, as well as many other makes and models. If you ever need parts for your vehicle, you can follow the link down in the description over to 1AAuto.com.

The only items you'll need for this repair are a new O2 sensor and a 22mm wrench

Your O2 sensor is located here, where the exhaust pipe becomes one single piece again right after this double-up cat. The electrical connector is located up here on the side of the transmission. We'll push down on the tab and disconnect that to start. Using a 22-mm open-end wrench, loosen the O2 sensor socket and remove it from the exhaust pipe. Remove the O2 sensor from the exhaust.

Install your new O2 sensor and thread it in as far as you can by hand. Tighten the O2 sensor back in with a 22-mm open-end wrench. Reconnect your electrical connector and you're good to go.

Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.

Tools needed for replacement:

    Wrenches - Metric

  • 22mm Wrench

1999 - 2002  Mercury  Cougar
2000 - 2002  Lincoln  LS
1992 - 1994  Mercury  Topaz
1996 - 2000  Mercury  Mystique
1992 - 1992  Mercury  Sable
2003 - 2004  Mercury  Marauder
2005 - 2007  Mercury  Montego
1996 - 1996  Ford  Motorhome M-400/450
2005 - 2007  Ford  Five Hundred
1991 - 1995  Ford  Taurus
2002 - 2002  Lincoln  Blackwood
2003 - 2005  Lincoln  Aviator
1992 - 1994  Ford  Tempo
1996 - 1999  Ford  Taurus
2004 - 2004  Ford  F150 Heritage Truck
1997 - 1999  Ford  F250 Light Duty Truck
2008 - 2009  Mercury  Sable
2006 - 2009  Mercury  Milan
2009 - 2010  Mercury  Mariner
2005 - 2008  Mercury  Mariner
2008 - 2008  Mazda  Tribute
2008 - 2010  Mazda  CX-9
2007 - 2007  Mazda  CX-9
2006 - 2006  Lincoln  Zephyr
2007 - 2010  Lincoln  MKZ
2007 - 2010  Lincoln  MKX
2008 - 2009  Ford  Taurus X
1995 - 1998  Ford  Windstar
1995 - 2003  Ford  Windstar
1994 - 1997  Ford  Thunderbird
2000 - 2002  Jaguar  S-Type
1995 - 2000  Ford  Windstar
1995 - 2002  Lincoln  Continental
1995 - 1997  Lincoln  Continental
2009 - 2010  Lincoln  MKS
2009 - 2010  Ford  Flex
2004 - 2007  Ford  Freestar
1994 - 1998  Ford  Mustang
1995 - 2010  Ford  Mustang
2005 - 2006  Ford  GT
1995 - 2005  Ford  Ranger
2009 - 2010  Mazda  6
1996 - 1997  Ford  Aerostar
1992 - 1997  Ford  Aerostar
1996 - 2011  Ford  Crown Victoria
1992 - 1997  Ford  Crown Victoria
1996 - 2000  Ford  Contour
2010 - 2010  Ford  Escape
2009 - 2010  Ford  Escape
2005 - 2008  Ford  Escape
2007 - 2010  Ford  Edge
2000 - 2005  Ford  Excursion
1992 - 1996  Ford  Escort
1997 - 2011  Ford  Expedition
1997 - 1998  Ford  Expedition
1996 - 2011  Lincoln  Town Car
1991 - 1997  Lincoln  Town Car
1998 - 2011  Lincoln  Navigator
1993 - 1998  Lincoln  Mark VIII
1994 - 1997  Mercury  Cougar
1991 - 1997  Mercury  Cougar
1996 - 2011  Mercury  Grand Marquis
1992 - 1997  Mercury  Grand Marquis
1991 - 1993  Mercury  Cougar
2007 - 2010  Ford  Explorer Sport Trac
2005 - 2007  Ford  Freestyle
2000 - 2004  Ford  Focus
2007 - 2010  Ford  Ranger
2007 - 2008  Ford  Ranger
1995 - 2000  Ford  Ranger
1996 - 2007  Ford  Taurus
1991 - 1997  Ford  Ranger
1991 - 1994  Lincoln  Continental
1995 - 1997  Mazda  B2300 Truck
1990 - 1994  Ford  F250 Truck
1999 - 2010  Ford  F250 Super Duty Truck
1990 - 1996  Ford  Bronco
1991 - 1996  Ford  Bronco
1990 - 1990  Ford  Bronco
1997 - 2003  Ford  E150 Van
1996 - 2014  Ford  E150 Van
1997 - 2014  Ford  E150 Van
1997 - 1999  Ford  E150 Van
1991 - 1999  Ford  E150 Van
1991 - 1996  Ford  E150 Van
1990 - 1999  Ford  E150 Van
1996 - 1996  Ford  E150 Van
1999 - 2001  Ford  E150 Van
1990 - 1990  Ford  E150 Van
1997 - 1998  Ford  E150 Van
1990 - 1996  Ford  E150 Van
1997 - 2003  Ford  E250 Van
2003 - 2014  Ford  E250 Van
1997 - 1999  Ford  E250 Van
1990 - 1991  Ford  E250 Van
1991 - 1996  Ford  E250 Van
1997 - 2014  Ford  E250 Van
1996 - 1996  Ford  E250 Van
2000 - 2001  Ford  E250 Van
1990 - 1994  Ford  E250 Van
1995 - 1996  Ford  E250 Van
1997 - 2005  Ford  E350 Van
1997 - 1999  Ford  E350 Van
1996 - 1996  Ford  E350 Van
1999 - 2016  Ford  E350 Van Super Duty
1999 - 2015  Ford  E350 Van Super Duty
1991 - 1996  Ford  E350 Van
1995 - 1995  Ford  E350 Van
1999 - 1999  Ford  E350 Van Super Duty
1994 - 1996  Ford  E350 Van
2002 - 2010  Ford  Explorer
2013 - 2016  Ford  E450 Van
2013 - 2015  Ford  E450 Van
1997 - 2004  Ford  Expedition
1997 - 2010  Ford  Explorer
1996 - 1998  Ford  Explorer
1996 - 2001  Ford  Explorer
1995 - 1998  Ford  Explorer
2001 - 2003  Ford  Explorer Sport Trac
1999 - 2000  Ford  F150 Truck
1991 - 1996  Ford  F150 Truck
1990 - 1990  Ford  F150 Truck
1999 - 1999  Ford  F150 Truck
1997 - 1998  Ford  F150 Truck
2010 - 2010  Ford  F150 Truck
2009 - 2010  Ford  F150 Truck
1990 - 1996  Ford  F150 Truck
1997 - 2003  Ford  F150 Truck
1996 - 1996  Ford  F150 Truck
2011 - 2011  Ford  F250 Super Duty Truck
1997 - 1998  Ford  F250 Light Duty Truck
1999 - 1999  Ford  F250 Super Duty Truck
1995 - 1995  Ford  F250 Truck
1990 - 1996  Ford  F250 Truck
1999 - 1999  Ford  F250 Light Duty Truck
1996 - 1996  Ford  F250 Truck
1994 - 1995  Ford  F250 Truck
1999 - 2010  Ford  F350 Super Duty Truck
1999 - 1999  Ford  F350 Super Duty Truck
1994 - 1997  Ford  F350 Truck
2010 - 2014  Lincoln  MKS
2008 - 2010  Ford  Taurus
1991 - 1997  Ford  Thunderbird
1996 - 1997  Ford  Thunderbird
2001 - 2003  Mazda  B2300 Truck
2004 - 2007  Mazda  B2300 Truck
1996 - 1998  Lincoln  Mark VIII
2010 - 2010  Lincoln  MKT
1998 - 1998  Lincoln  Navigator
2004 - 2007  Mazda  B3000 Truck
1995 - 1996  Mazda  B3000 Truck
1998 - 2000  Mazda  B3000 Truck
2004 - 2009  Mazda  B4000 Truck
1998 - 2001  Mazda  B2500 Truck
1995 - 2003  Mazda  B4000 Truck
1996 - 1997  Mercury  Cougar
2004 - 2007  Mercury  Monterey
1997 - 1998  Mercury  Mountaineer
2005 - 2006  Mazda  Tribute
1992 - 1996  Mercury  Tracer
1997 - 1999  Mercury  Tracer
1996 - 1996  Ford  F350 Truck
2011 - 2011  Ford  F350 Super Duty Truck
1997 - 1997  Ford  F350 Truck
1995 - 1995  Ford  F350 Truck
1990 - 1990  Ford  F350 Truck
2010 - 2010  Ford  Fusion
2008 - 2009  Ford  Fusion
2007 - 2009  Ford  Fusion
2006 - 2006  Ford  Fusion
2006 - 2009  Ford  Fusion
1991 - 1993  Ford  Mustang
1991 - 1991  Ford  Taurus
1993 - 1995  Ford  Taurus
1997 - 2010  Mercury  Mountaineer
1998 - 1998  Mercury  Mountaineer
1991 - 1998  Mercury  Sable
1996 - 2005  Mercury  Sable
2002 - 2005  Ford  Thunderbird
1991 - 1993  Ford  Thunderbird

91-07 Ford Lincoln Mazda Mercury Multifit Oxygen Sensor

Ford Mazda Lincoln Mercury Jaguar O2 Oxygen Sensor DIY Solutions EMS00433

This part replaces:

  • Standard Motor Products SG1803
  • Walker Products Inc. 250-24001

Part Details

Search Videos
Go To Top


Same Day Shipping

Orders ship same day when ordered by 2pm ET. Need your part faster? Choose expedited shipping at checkout.


Guaranteed To Fit

Providing you the highest quality, direct fit replacement auto parts enforced to the strictest product standards.


USA Customer Support

Exceeding customers' expectations every day, our team of passionate auto enthusiasts are here to help.


Instructional Video Library

Thousands of how-to auto repair videos specific to year, make and model guide you step-by-step through your repair.

Loading...