how do you change the O2 sensors

[llamaking122]

so i was under there today and looked at my o2 sensors and they look easy too get out. but how do you get the connectors theyre up by the heads and there is no room to get them

 

[FIND]

you just gotta reach up there. Might be helpful to pull off the passenger inner fender. To take the O2 sensor out, you need a ..... 15/16" wrench I believe.... They are VERY hard to get out.... the heat from the exhaust and corrosion will basically weld them to the y-pipe

 

[llamaking122]

you just gotta reach up there. Might be helpful to pull off the passenger inner fender. To take the O2 sensor out, you need a ..... 15/16" wrench I believe.... They are VERY hard to get out.... the heat from the exhaust and corrosion will basically weld them to the y-pipe

they were loose but i put them back in because i cant get to the connector. its way up there. ive done O2 sensors before and usually the connector is real close to it. it just seams impossible too get at

 

[corkey]

i just did the back one on my Explorer , you just have to look at the new one to see where the little tab is you have to press as you pull the wire connectors apart,,

 

[llamaking122]

i just did the back one on my Explorer , you just have to look at the new one to see where the little tab is you have to press as you pull the wire connectors apart,,

i can see it but its all the way up at the block. i tugged on it a lil but not too hard as too break it and it wont come down ill snap a picture tomorrow hopefully. i cant even get my hand up there its like a 1 inch slot.

 

[corkey]

use a long screwdriver and pull on the wires, the sensor you took out is no good anyways, and the other side is in that clip, so give it a good pull,

 

[gmanpaint]

A long pair of right angle tip needle nose pliers helps depressing the tab as you pull the wire. Use the same pliers to install the new one.

 

[TOMANDPAT]

When I did mine, I got under the truck and removed the sensor from the exhaust pipe. Then I went topside, armed with a coat hanger with a hook on the end, snagged the wire and pulled it up far enough to disconnect the connector. It's a little time consuming getting the new one back down there, but it can be done. Make sure you route the wire back in the original position, or you'll melt it.

Tom

 

[pickupman6]

drop the trans xmember and let your trans hang down.