With a P0420 code. I removed my cat system and saw that one of the precat honeycomb was missing. Since everything seemed okay I ordered a new eastern cat system (20379) off rock auto put everything back together and kept driving. http://www.rockauto.com/catalog/rafr...&parttype=5808
Well eventually on my way back from Moab on the I-70 I lost power and couldn't go over 50mph. It continued to get worse because the exhaust was clogged. So after some gracious jeepers got our Jeep home I removed the exhaust and made this little video to show what I found. Hopefully it helps
No way! I have a 2004 LJ, my dealership is trying to get $875 plus 2 hours for all 3, one piece. I have a local shop that wants $600 + 2 hours. Where can I buy my own one piece front pipe with all 3? It's rattling, I've noticed loss of power and poor gas mileage. Nothing alarming, but the front is rattling and check engine light is on and off every now and again.
The eastern cat is a two piece bolt on setup. They give you an exhaust clamp to tighten the precat to the third cat. You can choose to weld them together if you choose. Adjustments need to be made if you are running a raised skid plate of course.
Thanks. I have never been lucky enough to have a vehicle last long enough for cats to go out. Just thought I'd ask. Got another question for those that have experience with clamps. I cant help but go off of stories of clamps on exhaust coming loose, but don't really know if its hype or incorrect install reports. Does it matter that the clamps are up near the engine and probably the portion of the exhaust that gets the most vibration? Just wondering if clamps tend to work or they don't?