Thread: Best way to change O2 sensor/ECT sensor?

02 get an 02 socket and go from the top
ect take off the left dog bone bracket then use a 19mm socket.

spray the 02 sensor with penetrating lubricant about 2 hours before, they can be a sob to get off

try harder.

Originally Posted by stlunatics2oo3

if your set on taking it off and just replacing you could buy the o2 socket which is a 7/8's and use an extension, or cut the pig tail and use a 7/8 socket but then I dont know if you would have enough room to get the new one in using the wrench method

You need one of these, like 10-15 bux at your local auto parts store, buy one, youll need it later at some point or another

you can pull the motor forwards a little more, but the o2 sensor placement just sucks in general. you kinda just have to get in there and have at it.

Originally Posted by TLSheff

You need one of these, like 10-15 bux at your local auto parts store, buy one, youll need it later at some point or another

That socket would not fit on my o2, the sensor was too fat to fit inside of the sleeve. I had to use an open end socket for mine.

You bought the wrong one then.

Originally Posted by 01GTP

You bought the wrong one then.

They were both the same size, but the inside of the socket was a little too narrow. Doesn't really matter though as the other socket worked just fine.

Originally Posted by starscream5000

They were both the same size, but the inside of the socket was a little too narrow. Doesn't really matter though as the other socket worked just fine.

Truth^ One of our techs has 2 different ones, both the "same" size, but one wouldnt work to remove my 02 sensor when we did the motor swap... dunno why but it happens