| Author | Message | ||
     John Abrams (Jabra2) New Member Username: Jabra2 Post Number: 28 Registered: 02-2003 |
After living with a LOUD rattling converter for several months on my '96 Disco, I took it to my mechanic (non-dealer) and he said that it would be replaced under the 80k mi. warranty if I took it to the dealer. However, after an extended off-road excursion, creeping along mountainous trails at a snail's pace, the converter stopped making noise! It's been fine for about a month now. There were never any idiot lights that came on even when it rattled, so I am wondering if it's even worth taking it to the dealer and try to convince them I have a bad cat when there are no signs or symptoms. What do ya'll think? I can already see them giving me a boat load of crap about how I just want a new exhaust for no good reason other than saving myself money down the road. What are the chances of a cat becoming plugged and wreaking havoc? Also, I know how expensive these things are to replace, and my warranty will be up by the end of the year if I drive as much as I do now. If I wait, and my converter craps out, would it be possible to just gut my cats and run oxygen sensor simulators with no problem? I've done this with late-model EFI Camaros and Mustangs and had no problems, but does anyone know if simulators are available for my truck? The ones upstream from the cat are the ones that do the fuel trimming, and the ones downstream are solely for emissions, correct? The truck is registered in SC where there are no emissions checks, so I'm not worried about passing emissions tests. Yeah, I already know I'm evil for thinking about not running cats, so spare the flames. If I can find aftermarket cats that are reasonably priced I'll go with those instead of the sims, but I have yet to find any. Thanks! | ||
| D. Chapman (1hank1) Member Username: 1hank1 Post Number: 63 Registered: 02-2003 |
My truck did this. Rattle one day and gone the next. Then one day I was standing at the tail pipe and saw pieces of the "honeycomb" flaking on the ground. To make a long story short I unscrewed the O2 sensor and started the truck. About a minute later a chunk of the honeycomb came flying out of the tail pipe. Has not done it sence. So, yes, I would take it to the dealer to get it fixed. All they can do is say NO. | ||
| OLIVER CLOTHSOFF (Everythingleaks) Senior Member Username: Everythingleaks Post Number: 262 Registered: 10-2002 |
You could always create codes . . . . | ||
| Anthony Low (Bones) New Member Username: Bones Post Number: 31 Registered: 03-2003 |
Generally a rattle in catylic converter means that the tiles on the inside of the converter are starting to wear off, as is there adhesive. The only thing I know of to fix it is to purchase a new coverter system. "Disecting" one can be dangerous, as well as a waste of time and effort. Go for the new one. | ||
| Neal Glessner (Nealg) Senior Member Username: Nealg Post Number: 587 Registered: 02-2002 |
yup, it needs replaced. You have a little time. I'm sure the sound will come back so you can take it to the dealer. | ||
| Ron Brown (Ron) Member Username: Ron Post Number: 149 Registered: 04-2001 |
"You could always create codes . . . ." This is a lot harder than you would think it would be. Also, it is very hard to get cats covered (depending on the dealer). In general you must have had all emissions relavant services done and fail an emissions test. If they are bad, take it for an emissions test and see how it does. If you go in with a fail slip you should have fewer issues. As far as O2 sensor simulators the rear O2s in a GEMS truck are not very advanced. It takes a MAJOR fault for one of them to throw a code. Ron | ||
| Enoch Snyder (Esnyder) New Member Username: Esnyder Post Number: 18 Registered: 10-2002 |
If you do replace them, you can get fairly inexpensive ones from Summit Racing. Seem to be noisier than stock, but my fatter wallet keeps the sound from hurting my ears. |
