Replacing O2 sensors on a 2000 Tundra.

[mattlock]

As with all my attempts to fix things myself, I ran into a snag today. I tried to replace the rear O2 sensors and it turns out the parts I ordered didn't fit. Oh well, three hours and a pair of bloody knuckles later I gave up and moved to the front ones.

How the heck do you get to them? The sensor has a 22 mm fitting on it and I could see how that size would fit on there, but there is no way a normal wrench would have enough room to turn. I started taking off the shroud that seems to be in the way until I tried to get the underside nut off. No fricking way I would have gotten it off and gotten it back on! Without taking it off, I see no way of getting in there to get the O2 sensor out.

I thought it would be a two banana job, but now it looks like I am going to have to take it in.

Any thoughts?

 

[Rix86]

long extension and an o2 sesnor socket.

aboult half the time, they sieze in and won't come out, though.
Then you get to replace the manifolds.

 

[beaufort-fj60]

v8?....

 

[mattlock]

v8?....

Yep, it's a V8. Even if I had a O2 ratchet, which doesn't make any sense due to the size of the plug in wire fitting, I don't see enough room in there to move it.

Plus, now my truck stalls everywhere. I swear to God that all I removed was the rear passenger side sensor, and I put it back. Why would the truck stall because of that? I'm peeved...

 

[Rix86]

It's there. I've done dozens of sets of tundra sensors (and a bunch of manifolds)
The other way is the socket and a breaker bar.
It's tight, but there's room.
I also did it on a lift..... on the ground in the driveway might suck ass.

Toyota also extended part of the warranty for some of them, to cover screwed up manifolds from the sensors being siezed.

 

[hardontoyotas]

use a o2 sensor socket with a flex head ratchet. if you can't get it out then manifolds or headers