Catalytic converter

[walshie]

I took my av in for a vibration in the exhausst somewhere, like a heat shield or something so they said they had to order a part. After getting the wrong part and finally the right one they actually replaced the catalytic converter, saying it was clogged and coming apart. Its like I have a new truck. Performance is way up as well as responsiveness. i didn't even notice the gradual loss of power, but i noticed it when i got it back. i also got the armadillo treatement and its like the day i bought the truck. I only have 18000 miles on it so it you have that vibration sound and noticed a loss of power maybe its time to check the cat.

 

[wfbarto]

Did you get any check engine codes from the clogged cat converter? If not, how did the dealer diagnose it?

 

[walshie]

removed exhaust system and found clogged catand rattling cat. Dont know it they found any codes but nothing showed up on dash.

 

[new2Chevy]

are you still under warrenty? They didn't charge you eh?

CC is warrentied for 8 years 80k miles. Had mine replaced recently aswell. Made a nice difference.

Very surprised you didn't get a code...hmmm...

Mud!

 

[walshie]

Still under warrenty but this took 3 visits and last one took 5 days because they found rear main seal leaking. Han a tahoe for rental and it had the 4.8 which felt peppier than the 5.3 in the av. Now i know why.