How involved in swapping out cat converters?

[MICA4R]

I was considering swapping out the cats under the TSB, I would like to know how involved this procedure is? If its something that I can live with should I just live with it?

If its a saw and weld job they can go at it. But, if changing the cats involves a complicated procedure I may just "live with it."

 

[SkylineGTRracer]

Depends are you replacing the first set in the manifolds or the second set in the y pipe.

 

[ChaosStarter]

The Y-pipe is relatively easy. Depending on where the truck spent it's life, you may have to cut the bolts off with a cutting wheel, but it still should be pretty easy. The manifolds are a whole other ballgame.

 

[MICA4R]

Depends are you replacing the first set in the manifolds or the second set in the y pipe.

The Y-pipe is relatively easy. Depending on where the truck spent it's life, you may have to cut the bolts off with a cutting wheel, but it still should be pretty easy. The manifolds are a whole other ballgame.

Looks like 0.5HR labor for the 2 FRONT cats?

 

[Krazynative]

I was considering swapping out the cats under the TSB, I would like to know how involved this procedure is?

It is very easy. All you do is bring your rig to Toyota and they do all the work and the stuff is all bolt on. It is a TSB, so if you approach them right they will have to do it. As long as you fall within the 8/80.

I called the service department at my Toyota Dealership explaning about an "Excessive sulfer odor" when in stop and go traffic and during heavy acceleration. I told them I did a little research and found a TSB that fixed the problem. They confirmed it with my VIN and setup an appointment. I just printed out the TSB and brought it to them so there wasn't any chance they didn't know about it or what to change.

Now I hardly ever get any smell at all.

 

[ChaosStarter]

Looks like 0.5HR labor for the 2 FRONT cats?

They call the Y-pipe the front pipe because technically, it is in front, and not the manifolds. Technically, the main muffler is the 'mid-pipe' and the resonator section is the 'tail-pipe' or rear-pipe.

 

[SkylineGTRracer]

If it the y pipe yes I uninstalled the factory y and installed my URD y in around that time (30 min) more or less. If you are working on the ones in the manifolds it'll be around it will be considerably longer and that is if everything goes smoothly.

 

[MICA4R]

If it the y pipe yes I uninstalled the factory y and installed my URD y in around that time (30 min) more or less. If you are working on the ones in the manifolds it'll be around it will be considerably longer and that is if everything goes smoothly.

Ok, this makes a little more sense. The Y pipe is actually in 2 parts. One is the true "Y" the other is the extension.

So as you mentioned it is most likely a 1/2 hr job.

The dealer will be re-using the old sensors. I've removed sensors before and it seems like they are meant to be installed once and that's it? This brings me to my 2nd Q: Is removing and replacing O2 sensors a bad thing? It seems as though it may "shorten" the sensor life.

 

[SkylineGTRracer]

No I'm still running the O2 sensors my truck came with from the factory. All four of them have been taken out and reinstalled in the headers and Y pipe. As long as they have a good reading there is no real need to change them. And there is no harm in getting replacement ones either however you might need to pay out of pocket for those. The factory Y is two pieces but you can still take it out as 1 piece although it is a bit of a hassle if you don't remove the transmission brackets. Another thing is these aren't the primary sensors the ecu reads. It reads the two front ones as they are the WRAF sensors. (wideband)