ive been trying to take the o2 sensor out, but it wont come out.. is there anything i can do ... i tried pb blaster. but it wont budge
any suggestions

 

Try penetrating spray (from auto shop). Leave the car so the cats are cool, spray, let soak for a few hours, then try again.

 

And you are using a special tool correct?

 

+1, 02 sensors are expensive, becareful.

 

The 07+ cats are notorious for galling their threads when you try to take them out. I've had to wrestle plenty of them out of brand new cars.

My solution for all of them has been to just remove them, then chase the damaged O2 sensor threads with an M18x1.5 die. The female threads have always been okay.

Hope that helps.

 

Always happy to help. If you have other questions please don't hesitate to waste my time.

 

put some elbow grease into it or use a breaker bar...