If the main Cat is rattling,just replace it with the Magnaflow.The $100 replacements are for the 97-99 models.On my old Jeep,it was welded on and I cut it off.The Magnaflow has nice wide clamps that work very well.
Boogie: So I can basically just cut that sucker out of there (measuring correctly of course) and the hardware that comes with their system will enable me to clamp it in place with no leaks? Sounds too good to be true...
You are not a unique snowflake.
4" clayton long Arm, 5 inch rear stretch. CRAWLER tank. 35" KM2 muds, 1" MML from Brown Dog. Rear D44 Locked with a Detroit & trussed on Alloy Shafts, 4 point triangulation. Rear disc conversion. AtoZ Cage. Rubicon OR241 4:1. Front D30, Polly Performance Sleeve kit, locked with ARB, Alloy Shafts and HD steering linkages. Clayton belly up and oil pan skids, PSC Rocker Knockers, ORO air powerd Swayloc, Onbard Vita 450 and tank for fills and ARB compressor for the locker. Covered in dents.
The first thing I advise on this kind of situation is DO NOT just randomly throw money at it. I would never repair a P420 or P430 without turning the CEL off several times and making sure I got the code to come back again consistently. Anything you do to try to fix this issue will be very expensive and it could seriously just be a bad tank of gas. Also, be sure that it is not still covered under your warranty. Some emmission items are covered for 100k or more miles.
Check with the dealer before spending the money!! Mine rattles too and I''m getting it replaced under the emission warranty. 2004 with 36K miles. They need the VIN and miles to check and it only takes a minute to see if it is under the emission warranty.
I drive a 99 Wrangler with an aftermarket exhaust manifold, a Magnaflow direct fit catalytic converter, and a Banks Monster cat back. The exhaust system has been installed since July without a problem.
Two weeks ago I found a P0420 code. My friend reset it and it stayed off for a week or so until it came back on.
There is also a loud rattle that is coming from under the Jeep. I really don't want to replace the catalytic converter when this one is just five months old. Any ideas of where to begin?
Last edited by mirra9112; 01-02-2011 at 06:29 AM..
My 04 with 50k on it is throwing the cat. CEL and I have been denied warranty work due to abuse. Bone stock TJ. They state it's been up to the windshield in water. I even have a case open with corp. they are no help.