dos my 04ram 5.7 4wd have 2 or 4 o2 seneors i have never changed one and the guy at autozone (he was a A$$ hole) thangs i have 4 is he right. please help the check eng light is makeing me nuts

 

I hate it when they always think they are right. Even when they are, it's still rude. I have that same problem with a guy at Advance here by my house. i wanna kick him in the teeth sometimes. I will walk around the store until another register is open before I go to him...lol

Most of the time, vehicles have 4 only if they have dual exhausts or 2 cats in seperate pipes before the Y-pipe comes together. Im a gonna say you gots 2, but then again i could be wrong because I'm not that guy behind the parts counter that calls everythig HIS. No, it's Autozone's or OURS, not yours. I hate when they say that. Ummmm, yeah I have those in stock for you. Correction, WE have them in stock, like they own the place or something. Drives me nutzzz

 

haha yeah and half the guys who work at pepboys don't even know what an o2 censor is, they have to look everything up on the computer

 

This is from someone who has redone the exhaust from the engine all the way to the tailgate. My '04 1500 QC Hemi 4x4 had 4 O2 sensors and still has 4 O2 sensors, although I moved a couple of them back a bit.

If you crawl under your truck, you should find you have 2 Cats and an O2 sensor before and after each one of them...

 

thanks hammer