jQuery not supported.



Rattling Catalytic Converter

Rattling Catalytic Converter

Postby morpheusoptic [OP] » Apr 04 2013, 4:10am

On my way home from work today I started the truck up and everything was fine. When I got off the highway and got on a side road I heard this horrible rattling noise under the truck. I pulled over and started looking to see if anything was coming loose under truck or in engine bay and everything looked good. I think I have narrowed it down to the cat on the passenger side of the truck. If I smack on it with the engine off, it makes quite a racket. I was looking at prices for a new one and you can either buy them as an assembly with both cats and the y connection to the muffler and connections to the manifolds, or you can buy just the cat. Seeing that it is an all welded assembly I can't just unbolt the one cat and put in a new one, also the new welded assembly is way more than I want to spend at the moment since I just had to replace a number of things over the past few months.

If I cut the pipes of both sides of the cat to fit a stand alone one, are there any clamps with a gasket of some sort that I can put on to hold it in place without having to get it rewelded or buy the expensive main assembly, kind of like what older cars used to have?

Also, other than the horrible noise, is there any other damage that this can do to the truck if it takes awhile to fix, other than the damage to the environment I guess? I don't have to worry about inspections here at least.


Thanks everyone for your input.


-Paul
Original Poster
morpheusoptic
Newbie
Newbie
Posts: 2
Topics: 1
Joined: Apr 04 2013, 3:51am
Years of membership: 1 year of membership
Year: 2004
Make/Model: Chevrolet Silverado
Extra Info: 1500 V8 5.3 LS
Group Membership:
Registered users

Re: Rattling Catalytic Converter

Postby ASTE25 » Apr 05 2013, 12:32am

You can get the weld in cat's and take them to a muffler shop and have them welded in. It'd probably cost about $30 (labor) to have just one cat cut out and a new one welded in.
Jordan
ASTE25
Shifting into Sixth Gear! [L3]
Shifting into Sixth Gear! [L3]
Posts: 11130
Topics: 19
Images: 0
Joined: Jan 03 2011, 6:37am
Years of membership: 3 years of membership3 years of membership3 years of membership
Location: New Market, Alabama
Year: 2015
Make/Model: ...Not an owner
Group Membership:
Automotive Technicians
Member Extraordinaire
Registered users

Re: Rattling Catalytic Converter

Postby outdoorman66 » Apr 05 2013, 1:02am

I had both converts replaced last year on my 2004 chevy colorado free under the federal emissions warranty.
outdoorman66
Newbie
Newbie
Posts: 2
Joined: Mar 13 2013, 12:58am
Years of membership: 1 year of membership
Location: western pa
Year: 2013
Make/Model: Chevrolet Silverado
Extra Info: extended cab LT
Group Membership:
Registered users

Re: Rattling Catalytic Converter

Postby 19trax95 » Apr 05 2013, 2:14am

What better opertunity to upgrade to high flow cats. Haha.
User avatar
19trax95
Shifting into Sixth Gear! [L3]
Shifting into Sixth Gear! [L3]
Posts: 2359
Topics: 37
Images: 6
Joined: Apr 17 2012, 1:42am
Years of membership: 2 years of membership2 years of membership
Location: Eastern PA
Year: 2001
Make/Model: Chevrolet Silverado
Extra Info: 1500 5.3L Z71
Group Membership:
Registered users

Re: Rattling Catalytic Converter

Postby morpheusoptic [OP] » Apr 05 2013, 2:59am

What is the o.d. of the pipes attaching to the cat? Looks like the cat has flared ends that the pipes slip into before being welded.
Original Poster
morpheusoptic
Newbie
Newbie
Posts: 2
Topics: 1
Joined: Apr 04 2013, 3:51am
Years of membership: 1 year of membership
Year: 2004
Make/Model: Chevrolet Silverado
Extra Info: 1500 V8 5.3 LS
Group Membership:
Registered users

Return to Exhaust

 

  • Similar topics
    Replies
    Views
    Last post
  • Catalytic Converter
    possible faulty or needs new one
    by joewin » May 11 2012, 5:58am
    4 Replies
    1296 Views
    Last post by ASTE25 View the latest post
    May 11 2012, 10:09am
  • 5 Replies
    46 Views
    Last post by SilveradoSierra.com View the latest post
    Dec 18 2014, 2:27pm
  • Catalytic converter
    by 63vdub » Jul 30 2013, 2:08pm
    5 Replies
    580 Views
    User avatar
    Last post by gmcultr View the latest post
    Jul 30 2013, 4:03pm
  • Removing Catalytic Converter
    Has anyone taken out their catalytic converter in a Duramax diesel
    by Brayden.D » Oct 04 2010, 3:18am
    3 Replies
    6160 Views
    User avatar
    Last post by In2Trux View the latest post
    Oct 23 2010, 3:24am
  • Catalytic Converter Removal ? ?
    Late model cat removal?
    by fastshelly » Nov 20 2010, 5:49am
    8 Replies
    8497 Views
    User avatar
    Last post by adams99z71 View the latest post
    Nov 27 2010, 7:35am
  • Catalytic Converter/Exhaust
    by odeezy55 » Oct 15 2012, 11:19pm
    2 Replies
    657 Views
    Last post by McFly View the latest post
    Oct 16 2012, 1:30am

Common search terms

both converter rattling catalytic last anything probably year things everything chevy free work think thanks looks engine side today used since

It is currently Dec 18 2014, 2:27pm

  • Sponsor
Login  •  Register
SHOP TALK (Live Chat)
Exhaust Forum
ExhaustTopics regarding exhaust systems beginning at the headers down the pipes and through the catalytic converter and the mufflers and exhaust tips. We can also discuss emissions, performance cat back exhausts, or any exhaust related topics.
To create a new topic in Exhaust, click this button:
Previous topic Next topic
Sitewide News Sitemaps & Feeds

Who is online

Users browsing this forum: No registered users and 2 guests