View Full Version : Blown out cat????
MARTY
07-10-2012, 04:37 PM
One day into our trip from Melbourne to Busselton for the Monaro nationals had the engine start to run rough with the engine warning icon coming up in the lcd dash display. This is only happening occasionly (usually when left idling or slowing down through town) and then the warning dissapears, oil pressure, temp and voltage are all OK. Today found a grey honeycombed ceramic lump lodged in the left rear exhaust tip which I presume is part of the catalitic converters insides. So will this need to be fixed straight away or can I continue on our trip without damaging the car (seies III CV8 tuned lS1 with dephilipos and full exaust system installed by Autotechnique only 25,000km ago)? Are in Port Aususta today and booked into Port Lincoln tommorow. If it needs to be fixed ASAP any recomendations for workshops in either of these two towns? thanks in advance Marty
it will be ok until you get home, best to try to dislodge any remaining pieces for the trip home
Were they standard cats?
calais190
07-10-2012, 05:51 PM
Apparently the cats failing is quite common on the difillipo systems. This wouldnt be the first one I have heard about... Can't see it causing an issue seeing the internals of the cat have come out the otherside. In saying that, I wouldnt be giving the car much of a hard time either.
MARTY
07-10-2012, 06:29 PM
Thanks for the quick replies folks! Are not standard cats with the full stainless system 2.5 inch system. Any ideas for dislodging any remaining pieces in the exhaust?
Plenty
07-10-2012, 06:44 PM
Sounds like an O2 sensor has gone.......
MARTY
07-10-2012, 09:01 PM
Sounds like an O2 sensor has gone.......
Would this have cause the cat to blow out?
zorro
07-10-2012, 09:23 PM
No but may be the cause of the engine light. If you pass through Adelaide drop in to Willall or Enhanced they should be able to help you out
MARTY
07-10-2012, 09:38 PM
No but may be the cause of the engine light. If you pass through Adelaide drop in to Willall or Enhanced they should be able to help you out
Thanks for the referal, but are only heading west from here over the Nulabour:burnout:
Plenty
07-10-2012, 11:10 PM
Like Zorro said it would unlikely have anything to do with your cat failing but would most definitely throw the check engine light as well as a rough idle and excessive fuel usage.
The cat could be a coincidence or it may also be nothing to do with an O2 sensor.
MARTY
08-10-2012, 06:15 AM
Like Zorro said it would unlikely have anything to do with your cat failing but would most definitely throw the check engine light as well as a rough idle and excessive fuel usage.
The cat could be a coincidence or it may also be nothing to do with an O2 sensor.
Fuel usage has not increased, still getting around 9lt/100km at highway speeds
Woodchukka
08-10-2012, 09:02 AM
The VE's run a sensor before and after the cat don't they? If the cat has broken up and blew out the back end could the ECM pick up that the cat is not working through the O2 sensor readings and is logging the fault??? Feel free to put me in my place if needed I could be way off?
ATOMIC MALOO R8
08-10-2012, 12:07 PM
the danger you face is if the rest of the cat moves in to the tail pipe AND COMPLEATLY blocks the pipe like mine did
then you could do damage to the engine through excessive back pressure
best thing is to just remove the cat and knock out any remaining core and put it back on till you get home
or better yet get a new set of ballistic cats fitted
if the car gets sluggish or wont rev properly the tail pipe will be blocked for shore
VYClubby
08-10-2012, 02:03 PM
It appears you don't always get way you pay for....
I'd be really annoyed if I'd paid the top price for an exhaust system and the cat blew out.
keep the bits in case the police pulls you over .
MARTY
08-10-2012, 11:27 PM
Thanks everyone for the replies and advice, the wealth of knowledge and experience that is available from this forum is what makes it great:headbang: Spoke to an workshop in Port Augusta this morning and after hearing about a VE that killed an engine after a cat failure decieded to get it fixed, when I still have 8000+km's to go on our trip. Turns out the O2 sensor on the left bank had failed and killed the left cat. $415 and 2 hours later we're on our way again without any worries ready to cross the Nullabour, just hope the right side does'nt fail!
cheers Marty
Plenty
09-10-2012, 08:17 AM
When you get home change the right line yourself only cost you maybe $ 80.
Woodchukka
09-10-2012, 09:31 AM
Good to hear it was all sorted out. Enjoy the trip.
HRT 8
09-10-2012, 09:32 AM
Thanks everyone for the replies and advice, the wealth of knowledge and experience that is available from this forum is what makes it great:headbang: Spoke to an workshop in Port Augusta this morning and after hearing about a VE that killed an engine after a cat failure decieded to get it fixed, when I still have 8000+km's to go on our trip. Turns out the O2 sensor on the left bank had failed and killed the left cat. $415 and 2 hours later we're on our way again without any worries ready to cross the Nullabour, just hope the right side does'nt fail!
cheers Marty
Marty, having an O2 sensor fail will not cause your cat to fail.
You need to keep what was left of your cat and peruse warranty when you get home.
Pickles
09-10-2012, 09:43 AM
Glad you got it fixed mate.....Have a good trip.
Cheers, Pickles.
deano23x
09-10-2012, 09:45 AM
Marty, having an O2 sensor fail will not cause your cat to fail.
You need to keep what was left of your cat and peruse warranty when you get home.
Agree 100%
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