ok lets say the ones i have now are bad. How much would it rob me?

 

start a new thread asking it. dont fill up the sticky. ill answer over there

 

I have a 98 F150 4.6L Windsor - Just how many O2 sensors do I have? I have been told 2 but the guys at Auto Zone say 3...

 

PRD4RD - You have 4 O2 Sensors - Start a new thread if you have any other questions, this is a sticky

 

Great article. I didn't need to remove any wheel well covers in my 98 Expy 4.6L. I could reach both of them from the side.

One thing with the Bosch sensors, I put them in from Checker/Kragen. I replaced them because they had 150,000 miles on them, but as soon as I did, they started spitting out 2 or 3 different codes. I took them back and got Denso brand sensors from a local shop and they worked no problems.

 

Moved to HOW-TO

 

Yea , Bosch are OEM.. If problems developed after install, you chaffed the wires - had a defective new sensor (it happens) or sold the wrong ones.

 

Just got directed here by Tumba, as I was looking for help on how to do this. Awesome write up, thanks for putting this together.

 

Thanks for the guide!! Worked out great. Most difficult part I had was getting the tranny dipstick back in. Exhaust was still hot, had to let it cool more so I could get my fingers in there to feel where I was going.

 

Just wanted to thank jmg-in-alaska. I just did the two front o2 sensors on my 1997 f-150. The directions and photos were spot on. Took an hour. I even did it in the dark.

My biggest thanks is for the list of tools needed. It's so frustrating to no know what will be needed. I didn't have to run back to the house once for a tool.

Thank you so much!

 

Thanks for the write up! I have a '03 F-150 V6 that I've been trying to diagnose a rough idle on for the last two winters. For some reason a google search brought me to this page, which is weird because I've been using the same words for months. Anyway, I've done a full tune-up (no change), eventually got to a ignition coil (no change), and finally found this site and got he parts for the O2 sensor change.
The hardest part by far was the removal and installation of the wheel well cover, only made more difficult by the 8 degree weather (-10 wind chill). Once I got to the sensor I just needed the socket (as pictured) and a breaker bar. The sensor on both sides was nearly vertical, so by turning the wheel I had no problem accessing, removing and installing the new sensor. Had some issues finding the connector for the drivers side, it's hidden really well behind the engine and in front of the firewall, had to make the connection by feel. Engine runs nice and smooth now.