i have a 2004 f150 5.4 and one of my oxygen sensors have went out and i was just needing to know how to tell which one is out before digging into it and also i had the codes pulled on my truck and the codes that said my o2 sensors are out was pulled twice so does this mean that i have two o2 sensors out and if that is the case is there anyway to troubleshoot this problem so i dont have to spend that much money

 

A.) Use comma's and punctuation so we can understand what you are saying.

B.) An O2 sensor code does not always means a bad O2 Sensor.

c.) Each code is specific is each O2 Sensor, so we need to know what code your truck is throwing before telling you which sensor is bad.