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jbbrick's avatar
jbbrick
Explorer
Jan 10, 2014

Replacing O2 sensor on Ford V10-anyone done it?

I tried to smog my '02 Winnie with the V10 F53 chassis and the oxygen sensor is not reading. Has anyone replaced theirs, and how much of a job is it? I can do most stuff but haven't had to do this before on any of my vehicles. Thanks

Also, I'm not getting any warning lights-it just isn't reading on the scanner. The smog guy is pretty good and won't put it on the machine until all the sensors show up ok so I don't get a "failed" report.

Edited: I just did a google search and see that there are prob 4 sensors, would a scanner show which one is causing the problem?

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  • Dr_Quick's avatar
    Dr_Quick
    Explorer II
    Jan 11, 2014
    If there is a failed O2 sensor the scanner should tell you which one. There are sensors located 2 pre cats and 2 after cats. The front ones give information to the computer to set the mixture, and they will vary for Rich to Lean quite rapidly. The back sensors should remain fairly steady, to show that the Cats are doing their job. Bank one sensor will be on the side of the engine that the #1 cylinder is located, and it should be the passenger side. Bank 2 should be the drivers side. Sensors are listed as Bank 1 sensor 1, bank 1 sensor 2, bank 2 sensor 1, and bank 2 sensor 2.

    If you are not getting a "Check Engine Light", sensors should be working correctly. If you want to see what each sensor is doing, you will need to find someone with a "Diagnostic scanner", which will show what each sensor is doing.

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