Brother in laws '11 Camaro trouble
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Shelby GT350 Member
Joined: June 9, 2008
Posts: 2,061
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From: Rochester NY
Brother in laws '11 Camaro trouble
First he had one of his belts not on right and it was squealing, took it to the dealer and had it fixed. Then the rear was whining, took it to the dealer and they said this happens to some and put a additive in. Said very common in Corvette's. Now his tail pipes have just black soot in them. Told him to have it looked at. Any ideas what the problem may be?
Mach 1 Member
Joined: April 23, 2011
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From: Pacific NW
Maybe this member is reaching out to fellow Mustangers for some actual assistance since apparently GM isn't (imagine this) helping!?!? Why not offer some insight if someone has some instead of backhanded bashing?
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Joined: February 2, 2004
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From: Insane
It is an '11 Camaro? Then it's under warranty. Ostensibly, it's running rich. But there is an easy way to figure this out: Take it to a reputable shop at a dealer who acutally wouldn't mind making sure GM's second halo car doesn't get a bad reputation, nor does GM in general get a bad rap for not doing due dilligence.
Either they can explain it sufficiently that everyone will agree, in that the Camaro apparently sucks at not producing greenhouse gases, or it's running rich, and the computer needs to be retrained or a sensor repaired or such.
It is highly unbelievable that there is no Check Engine light on the thing if it's all sooty, UNLESS there's a tune in it. But you say that's not the case. Therefore, it's a bad computer, or he's using some goofy additive, or the engine is screwed up, either sensors, plugs or mechanical.
In other words: Dealership. Nao.
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That being said, there's no reason that soot doesn't happen, if you're driving it when it's cold or stomping on it all the time, or... there *will* be soot/blackening. Exhaust gases are what they are: carboned up molecules and water. It's not just carbon monoxide, carbon dioxide and water. Just the accumulation isn't supposed to be huge and very noticable... sort of a light coating on the exhaust and such. Not 'get a pick out and start scraping'.
Either they can explain it sufficiently that everyone will agree, in that the Camaro apparently sucks at not producing greenhouse gases, or it's running rich, and the computer needs to be retrained or a sensor repaired or such.
It is highly unbelievable that there is no Check Engine light on the thing if it's all sooty, UNLESS there's a tune in it. But you say that's not the case. Therefore, it's a bad computer, or he's using some goofy additive, or the engine is screwed up, either sensors, plugs or mechanical.
In other words: Dealership. Nao.
---
That being said, there's no reason that soot doesn't happen, if you're driving it when it's cold or stomping on it all the time, or... there *will* be soot/blackening. Exhaust gases are what they are: carboned up molecules and water. It's not just carbon monoxide, carbon dioxide and water. Just the accumulation isn't supposed to be huge and very noticable... sort of a light coating on the exhaust and such. Not 'get a pick out and start scraping'.
Last edited by houtex; May 9, 2012 at 12:31 PM.
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Joined: October 8, 2005
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From: Medina county, OH
Stay on topic........
Black soot is not necessarily a sign of anything specific nor is it a sign that the car is running too rich. Lots of cars on the road today do this; it can be as much a function of the cats and mufflers as anything else. The rear end noise was common even on early S197 Mustangs, my '06 had it when going around corners and needed a bottle of XL friction modifier which cured it.
Black soot is not necessarily a sign of anything specific nor is it a sign that the car is running too rich. Lots of cars on the road today do this; it can be as much a function of the cats and mufflers as anything else. The rear end noise was common even on early S197 Mustangs, my '06 had it when going around corners and needed a bottle of XL friction modifier which cured it.
Last edited by tom281; May 9, 2012 at 01:05 PM.
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Originally Posted by tom281
Stay on topic........
Black soot is not necessarily a sign of anything specific nor is it a sign that the car is running too rich. Lots of cars on the road today do this; it can be as much a function of the cats and mufflers as anything else. The rear end noise was common even on early S197 Mustangs, my '06 had it when going around corners and needed a bottle of XL friction modifier which cured it.
Black soot is not necessarily a sign of anything specific nor is it a sign that the car is running too rich. Lots of cars on the road today do this; it can be as much a function of the cats and mufflers as anything else. The rear end noise was common even on early S197 Mustangs, my '06 had it when going around corners and needed a bottle of XL friction modifier which cured it.
Last edited by 11SHELBYGT500; May 9, 2012 at 04:27 PM.