just bought the o2 sensor here from work and ill hopefully install it during my lunch break or after work, but i just wanted to know if any one has replaced one of these o2 sensors before and if so how hard is it to install?

 

With the right tools and little rust, it's easy.
With the wrong tools and rusted O2 sensors, they suck.

Which side? Do you have the crows foot?

 

top right side, i have a body lift so it should give me a little more room to work with (i hope) and crows foot?

 

i got codes p0171 and p0174 i my maf doesnt look too dirty but i do need to clean it, and from what i gather from here is that, that o2 sensor is usually at fault for the p0171, or did i gather wrong?

 

Gathered wrong. What engine?

Here is a great link if you feel like learning: http://troubleshootmyvehicle.com/for...d-p0174-page-1

 

Buy the o2 sensor tool, well worth like 13.00

 

4.2l good thing is can just return it since I was waiting for a reply thank by the way

 

We'll tackle now I just feel more confused and feel more like our ford techs here just guessing and hoping that's the problem..... Haha