96 Tahoe 2 dr.Oxygen Sensors issue

[DaRosa218]

You'll have a o2 sensor before and after the Cat converters. Upstream is before and downstream is after the cats.

Here is a step by step video on how to change them.

http://www.youtube.com/watch?v=QQ393gnvm-k

 

[SunlitComet]

Ohh jesus ...