hello everyone please welcome and joins me in Easy Steps today I'm going to share with you my Hummer
h2 this will be part 2 replacing the o2 sensor so please watch part 1 how to replace the oxygen
sensor upstream and downstream on the passenger side on the driver side is a little tedious when
you're replacing your sensor you have to get under your truck it's really easy to change it
if you follow the steps in case if you're doing the DIY work all the parts the tools what I
will use to complete my job please check under the description this is the tool we're going
to use with our oxygen sensor this is a special tool the way it works the wiring goes inside of
this and then this gets mounted on the oxygen sensor and then we crank it open and as for
tightening the torque it says to do the hand tight and then do the three quarter turn and
this is how it looks the upstream connector and this is how it looks downstream connector and
then you need a ratchet extension and the sockets that's all tools you need
so this is on the driver side so you crank it open insert the socket once you crank
it open then you can do it with the hand we take the socket off, this is a little
tricky so now you turn it with the hand and we'll open it and this is the upstream
this one is a little bit harder comparatively on a passenger-side because if this one is a
little up so that's how you take it out and now we're going to unplug the wire
that's how we're going to put back the new one and this is the back of the catalytic
converter this is downstream so we're going to crank it open and then we're
going to take it out and we're going to unplug from the wiring and we're going
to plug it back on the driver side you have to get under the Hummer in order to do it
so the new one we insert it and just keep doing the hand tight one tip I wanna share
with you that when you're installing these o2 sensors don't plug it in if you plug it
in then it will be harder because the wire you are rotating if it's not good you need
the wire to move freely as you tightening it and as you can see it's a hand-tighten now
we're going to use the socket and a three-quarter turn and we're going to do the three quarter turn
that's good enough and now once you tighten the o2 sensor now you can plug in the wire
so that's what the tip I wanna share with you so this is my upstream and downstream sensor
when you installing it, it's a good idea not to plug in the connector you install it first
once you tightening your sensor then plug in the connector so I hope this video going
to help you out today in case if you need to check out passenger side sensors upstream and
downstream please check my part 1 video and if you like this video and if it helps you in any
way please don't forget to Like share and subscribe easy steps thank you and bye-bye