New H2 sut "new to me anyway";)

[GreyGhost]

I got under the truck and banged on the cats and I hear a rattle in them. That's good news to me anyway.
Is there definately a recall on the cats? Does anyone have a link I can print out the recall and show it to the dealership?

 

[Big2dabank]

I have never seen anything official on the replacement/recall of the cats. I recall one of the members on here getting a letter from GM, but I never got one. My cats started to rattle and throw a CEL, so I ripped both cats off and here is what the substrate inside the cats looked like. It was detached from the sides of the cat and just rattling around inside the cat.



Once I hacked the cats off, I ordered at set of Dynatech Long Tube Headers with the High flow cats. Not cheap, but well worth the money.

 

[Timgco]

Welcome! Great choice on your new rig! I have loved my past SUT's! Great trucks. It looks like you have started your re-conditioning. A couple things to replace if they have not been done. idler arm, pitman arm, steering stabilizer, shocks. These are the 1st items I tackled on my last 2 used SUT's. next up was ALL the fluids. Someone has a list on here of the maint schedule by miles driven and may be of benefit to you. post up more pics when you time!

 

[GreyGhost]

Gm did a full scan and found out upstream bank 1 sensor bad and that's it. Charged me $41 for what I already knew but small price for peace of mind. I just replaced the wrong side, so gonna do the other side today which should take care of it. I'm still gonna check how much hi-flow cats installed will be. Don't have money for headers yet but that's on my list. Thx for the suggestions and pics! Great forum members here. \m/