Engine & Internal Chat about beefing up your Blazer's engine insides here.

Cat

  #1  
Old 10-12-2018, 11:16 PM
Starting Member
Thread Starter
Join Date: Oct 2018
Location: Sidney BC
Posts: 3
Bud Potter is on a distinguished road
Default Cat

Hi all I have a 2005 jimmy. the cat went bad and started rattling its guts out. thats about done with now but i'm getting an extreme lack power and acceleration and such. ive tried a mini cat adapter on my downstream o2 sensor but this hasn't helped at all. I really don't want to put in a new set of cats and pipes but i will as a last resort. does anyone know of a way to convince the ECU that it doesn't need that downstream sensor and let my engine run in unrestricted mode?
Thank you
Bud Potter
 
  #2  
Old 10-12-2018, 11:18 PM
Junior Member
Join Date: Oct 2008
Location: Pasco,WA
Posts: 304
G0LFADD1CT is an unknown quantity at this point
Default

Go with the new cats. Trust me you'll be glad you did.
 
  #3  
Old 10-12-2018, 11:21 PM
Starting Member
Thread Starter
Join Date: Oct 2018
Location: Sidney BC
Posts: 3
Bud Potter is on a distinguished road
Default

Thank you
 
  #4  
Old 10-13-2018, 12:46 AM
christine_208's Avatar
BF Veteran
Join Date: Dec 2016
Location: Moscow, ID
Posts: 2,036
christine_208 is on a distinguished road
Default

Don't use Ultra Exhaust (www.ultraexhaust.ca or www.ultraexhaust.com). They mounted the O2 sensor nut in the wrong place which prevented me from properly installing the catalytic converter and would not pay for return shipping for the return.

Once your cat starts rattling I would think that you can end up with a blockage that is responsible for your lack of power. If you are doing a stock replacement, it is not too bad to do yourself if you get one with the pipes already on the cat and you don't have lots of rust underneath.
 
  #5  
Old 10-13-2018, 12:53 AM
Starting Member
Thread Starter
Join Date: Oct 2018
Location: Sidney BC
Posts: 3
Bud Potter is on a distinguished road
Default

i was looking at ones on rock auto that are basically the stock cat tree setup of cats pipes and o2 sensor nuts all assembled. one is walker and one is easten catalytic. ill need a new muffler and tail pipe too because someone snot welded it together
 
  #6  
Old 10-13-2018, 01:04 AM
christine_208's Avatar
BF Veteran
Join Date: Dec 2016
Location: Moscow, ID
Posts: 2,036
christine_208 is on a distinguished road
Default

On my 1999, the y-pipe is not welded to the cat so I was able to get a cat that had only short sections of pipe to connect at the outlet of the y-pipe and entrance to the muffler.

Not being a welder, I went with the bolt-in replacement for both the cat and the muffler and tailpipe. I got the later from Walker with the larger pipe diameter. It was pretty easy to install. I did it in my driveway. Note: I live outside of where they use lots of road-salt so a little Liquid Wrench is typically all I need to get my bolts out.
 
  #7  
Old 10-13-2018, 08:23 AM
rriddle3's Avatar
Administrator
Join Date: Dec 2006
Location: Fort Worth,Texas
Posts: 6,425
rriddle3 has a reputation beyond reputerriddle3 has a reputation beyond reputerriddle3 has a reputation beyond reputerriddle3 has a reputation beyond reputerriddle3 has a reputation beyond reputerriddle3 has a reputation beyond reputerriddle3 has a reputation beyond reputerriddle3 has a reputation beyond reputerriddle3 has a reputation beyond reputerriddle3 has a reputation beyond reputerriddle3 has a reputation beyond repute
Default

Replace the cat and your engine power will be restored. It can't breath with a plugged converter. A muffler shop can weld in the assembly for very little money.
 
  #8  
Old 10-14-2018, 03:28 PM
New Member
Join Date: Jan 2018
Posts: 3
ChevySS is on a distinguished road
Default

I bought a cat off eBay for 50 bucks for my 97. Bolted right up
 
  #9  
Old 10-14-2018, 05:51 PM
Junior Member
Join Date: Jul 2013
Posts: 420
Tom A is on a distinguished road
Default

Originally Posted by Bud Potter View Post
i was looking at ones on rock auto that are basically the stock cat tree setup of cats pipes and o2 sensor nuts all assembled. one is walker and one is easten catalytic. ill need a new muffler and tail pipe too because someone snot welded it together
Go with the Walker. I've replaced a ton of exhaust parts with Walker stuff and never had a quality or fitment issue.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
hillbillys10
2nd Gen S-series (1995-2005) Tech
7
04-14-2013 01:04 PM
Squad-6
Headers, Intake, & Exhaust
5
05-17-2011 10:29 PM
Bullfrog2099
Headers, Intake, & Exhaust
9
12-16-2010 07:25 PM
PaulO2288
Headers, Intake, & Exhaust
17
01-20-2010 01:39 PM
djbass_mekanik
Headers, Intake, & Exhaust
2
04-22-2006 06:15 AM


Thread Tools
Search this Thread
Quick Reply: Cat


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.