02flaresidesport

I thought there was only one. I was up under the truck today and saw 4. Is this true? And if so, how do I get the ones out of the catiylc spelling? converter? I cant get a wrench in there. Thanks for your help.

Magas

I just did mine. and you are right , it has 4 and the ones on the back are pain in the butt to change
just slide down the truck (make sure the exhaust is cool enough) , find the right angle to slide your wrench in ; I used an extension and a piece of pipe as handle to turn the wrench easier .
Good luck.

02flaresidesport

What size were they? If you remember. Thanks I did the passenger side, but there a diffrent size on the exhaust pipe under the truck by the converter

Magas

I dont know the sizes and dont know why you care about the size . I bought the full set and replaced them with the same wrench . let me know what exactly you need to know about the size , I might be able to help ...

02flaresidesport

What I meant was I dont have that size, most of my stuff is standard, because I usually only drive older stuff. I was wondering if you remembered what size wrench you used that away I dont play the guessing game with it. Thanks

Good old Bill

Being a 4.2L, was wondering what is the reason for going after the 02 sensor?

02flaresidesport

127k and looks like the original O2's. I figure some new cats a new muffler and some new O2's will help pick her up even more. She runs great, just doing some maintenance on her.

Good old Bill

Was just wondering, I'm at 183K on mine and don't wan't to touch it. Let me know how everything works out.

02flaresidesport

Well my occasional check engine light has now been off for over 100 hard miles. I just clean mine. I dont replace them. But I am also old school.