Having problems with your 2004 Ford F150 ?

Where is the O2 sensor?

\015 Where is the O2 sensor on a 2003 Ford F150?\015 Posted / edited by AnonymousUser on : 16-04-2018

Answers :

The O2 sensor are in the exhaust header pipes before the catalytic converters, there are 2 of them, the sensors that look like O2 sensors that are after the catalytic converter are called Catalyst effeciency monitors and measure how well the cats are doing there job of cleaning up the exhaust.
Repair Help & Product Troubleshooting for 2004 Ford F150

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