Excessive soot from exhaust. - Page 3 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

GR8WHITE1 · 11-10-2013, 05:36 PM

Quote:

Originally Posted by Blownhotrodder

The soot is the tune on the car and nothing else. They are set rich for safety reason with the motor. Thats why a tune makes power, lean it out and adjust timing. Its not a bad thing.

That's what I wanted to hear and nothing else. Just wanted to know if its common.

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*Mr. Wyndham* · 11-10-2013, 08:34 PM

Quote:

Originally Posted by GR8WHITE1

Noticed it was excessively bad yesterday becuase I drove it 25 miles down a canyon to my destination both ways and actually running through the gears.
Even gave her a little rap on the pedal to let my buddy who used to be a tech at chevy hear it and he laughed its a chevy when its brand new blowing black crap out the exhaust. I feel a brand new car should not be doing this.

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Buildup on just the outboard exhaust tip IS normal, if you have the fuse pulled...but what you're describing sounds like not regular buildup.

If you can SEE it (or your buddy can) blowing soot/oily fumes out the back...that's not normal. - go visit your dealer. Could be any number of weird problems with the engine.

EDIT: Just saw your pictures: you're fine.

What you're wiping away on the rear quarter panels is brake dust...and what you see on the exhaust tip is normal...give it a good scrub/polish every time you wash it to prevent staining...otherwise - all good!

The ZL1 had a LOT of carbon buildup on the exhaust tips...but then, it was burning almost double the fuel at times. This isn't so bad.

Midnight Rat · 11-10-2013, 09:23 PM

Everything's normal. My white car does the same.

CrystalRedTintcoat · 11-10-2013, 11:24 PM

Yes. Just wash them. The outer ones are dirtiest.

20121lt · 11-12-2013, 08:33 AM

Just put a full 1500miles on my girl from new York to north Carolina and return easy miles all highway when returned washed her and did all the winterizing ,she had the same road grime/soot all over the rear and yes a black soot plus the tip outside tip completely black ,I will add this the gas you use also plays a role ,as I did notice a decease in sooting on tips (shell v-power the best)

VOGGS-LS3-1LE · 11-12-2013, 12:59 PM

Look ma! I got a sooty exhaust too. Perfectly normal. Go to you tube and watch the motortrend test of the 2013 1le and look how black that npp tips are.

Emvici · 11-12-2013, 01:21 PM

it is soot, mine is the same way, Gm has the fuel mixtures in these Cars running very rich, results=lots of soot.

wakespeak · 11-12-2013, 01:59 PM

Tire dust also. Have same issue - have white/NPP (but reg SS with Pirellis). You should have seen the rear bumper after a day at the track. The "dust" is very black so I have assumed combination of tires/brakes/exhaust.

STINGER BEE · 05-11-2014, 09:40 AM

I have this same problem ,stock engine --no mods,after reading the replies It looks like this is a normal issue for those cars.
Someone mentioned the fuse pull,is this the fuse pull they mention for the 2010 models,where as if you used the low grade fuel it set the ECM and the result caused poor performance.By installing the 93 octane fuel in it and pulling the fuze for a certain length of time set it back to factory default mode.Would using a lower grade of gas cause it to soot up or even water/city driving cause this issue.

Quote:

Originally Posted by GR8WHITE1

Hey guys wondering if you guys have excessive soot on the back of your cars? I have 1200 miles and npp exhaust with the fuse pulled. My car is white and after just two days there is what seem to me to be an excessive amout of soot on the back of my car and my car is white to make it even worse.

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wakespeak · 05-12-2014, 10:24 AM

Lots of performance cars (look at a BMW M exhaust pipe) seem to be tuned rich.

Catch can helps slow the accumulation as some of the soot is inhaled oil vapors. I think the inhaled oil caused misfires for me as well, which led to more soot.

gajagfan · 05-12-2014, 10:32 AM

Just for the record, the NPP has nothing to do with this. The cars are rich to keep them safe. Its all very normal.

KRich2587 · 05-12-2014, 08:11 PM

I'm sorry but all engines do this i'm a tech for BMW and all our cars do this as well its not the tolerances even hondas do it just may take longer. My car is even worse with no cats LTs and cam but i track it so it gets dirty alot i hate cleaning it lol

11-10-2013, 11:24 PM	#32
CrystalRedTintcoat Drives: 2013 2SS 1LE NPP GBE Join Date: Sep 2012 Location: Bay Area, online, & in my 1LE Posts: 2,667 View My Garage	Yes. Just wash them. The outer ones are dirtiest. __________________ 2013 1LE NPP GBE Mods Track Days

11-12-2013, 12:59 PM	#34
VOGGS-LS3-1LE Angry by Nature Drives: 13' Camaro 1SS/RS/1LE/NPP 1 of 76 Join Date: Aug 2013 Location: Pittsburgh, PA Posts: 343	Look ma! I got a sooty exhaust too. Perfectly normal. Go to you tube and watch the motortrend test of the 2013 1le and look how black that npp tips are. Attached Images __________________ 2013 CHEVROLET CAMARO 1SS/RS/1LE/NPP 1 OF 76 Roto Fab CAI 1LE BADGES

11-10-2013, 09:23 PM	#31
Midnight Rat Drives: SS 1LE Join Date: Nov 2012 Location: Texas Posts: 1,829	Everything's normal. My white car does the same.

11-12-2013, 08:33 AM	#33
20121lt REAPER1LE Drives: 1LE 1 SS 2018 Join Date: Jun 2012 Location: oswego ny Posts: 194 View My Garage	Just put a full 1500miles on my girl from new York to north Carolina and return easy miles all highway when returned washed her and did all the winterizing ,she had the same road grime/soot all over the rear and yes a black soot plus the tip outside tip completely black ,I will add this the gas you use also plays a role ,as I did notice a decease in sooting on tips (shell v-power the best)

11-12-2013, 01:21 PM	#35
Emvici Drives: 2014 ZL1 White Convertible Join Date: Aug 2013 Location: St Pete Fl Posts: 682	it is soot, mine is the same way, Gm has the fuel mixtures in these Cars running very rich, results=lots of soot.

11-12-2013, 01:59 PM	#36
wakespeak Drives: 2020 ZL1 1LE Join Date: Sep 2012 Location: Austin, Texas Posts: 1,335	Tire dust also. Have same issue - have white/NPP (but reg SS with Pirellis). You should have seen the rear bumper after a day at the track. The "dust" is very black so I have assumed combination of tires/brakes/exhaust.

05-12-2014, 10:24 AM	#38
wakespeak Drives: 2020 ZL1 1LE Join Date: Sep 2012 Location: Austin, Texas Posts: 1,335	Lots of performance cars (look at a BMW M exhaust pipe) seem to be tuned rich. Catch can helps slow the accumulation as some of the soot is inhaled oil vapors. I think the inhaled oil caused misfires for me as well, which led to more soot.

05-12-2014, 10:32 AM	#39
gajagfan Drives: 2013 1SS 1LE Black - Std Exhaust Join Date: Mar 2013 Location: Brunswick, GA Posts: 3,622 View My Garage	Just for the record, the NPP has nothing to do with this. The cars are rich to keep them safe. Its all very normal.

05-12-2014, 08:11 PM	#40
KRich2587 Drives: 2014 Summit White 1LE Join Date: Jan 2012 Location: Temple, TX Posts: 432 View My Garage	I'm sorry but all engines do this i'm a tech for BMW and all our cars do this as well its not the tolerances even hondas do it just may take longer. My car is even worse with no cats LTs and cam but i track it so it gets dirty alot i hate cleaning it lol