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Custom Dodge Ram Performance Mods - Engine - 4.7 Liter V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 4.7-liter V8 engine - 310 horsepower, 330 lb-ft of torque.


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  #1  
Old 06-22-2014, 04:44 PM
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spnich1x spnich1x is offline
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Default Soot from my exhaust

my truck has about 59K on it. At about 57K I installed a K&N CAI and a Flow master catback (Dual) exhaust. I have noticed an increase in soot collecting at the tail pipes. Seems like it might be running rich.

I do not have a tuner (yet) and everything else is stock. I replaced the upper spark plugs at 45K per the schedule. They looked ok nothing out of the ordinary.

So any idea's? I was thinking of pulling the plugs and checking gap and the lowers are not due for another 30K. I was wondering if the Mass air sensor might be the issue.

I did verify my intake is sealed and no issues there, and maybe this is normal and I am just obsessing.

Thank you for your help.
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Old 06-22-2014, 05:40 PM
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I think you're just obsessing. I'd love to keep my pipes shiny clean all the time, but the soot just seems to be there.
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Old 06-22-2014, 06:22 PM
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It is time to run SEA FOAM Treatment through your Fuel system
I personally would not use it in the Crankcase, your engine is still to new to need it

I have 110,500 miles on my engine & i just use Sea Foam for the fuel system

Look on YouTube for how to videos
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Old 06-22-2014, 07:05 PM
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Quote:
Originally Posted by GTyankee View Post
It is time to run SEA FOAM Treatment through your Fuel system
I personally would not use it in the Crankcase, your engine is still to new to need it

I have 110,500 miles on my engine & i just use Sea Foam for the fuel system

Look on YouTube for how to videos
Great idea, Tom! Don't know why I didn't suggest that.
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Old 06-22-2014, 09:07 PM
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Great I will give it a try in the fuel system.

Thanks for the help.
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Old 06-22-2014, 09:58 PM
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Pardon me boys... but that is a foolish idea.

SeaFoam and other snake oils are forbidden by the OEM warranty for good reason.

Also, if you're troubled by soot... just exactly why will running another oily petroleum product in ADDITION to the gasoline your engine is supposed to get, which will create MORE carbon... will reduce soot?

I realize this is probably inflammatory to most of you guys...and I'm truly not trying to insult anyone...but come on! Snake oil additives are for ......well...that was harsh, so I came back and edited my comment...but, in a nut-shell, don't waste money on that kind of stuff.

I am puzzled however on why the 4.7 soots like it does. My brand new truck left soot stains on the right/rear chrome bumper and when I took it in for it they ran all the tests and said the engine is running fine, not too rich, and etc etc.
If it were a good ol' 1960's truck I'd think it was jetted too rich or the choke was set too cold. So I took it to a friend's shop (he does custom tunes for the rich and famous) and he confirmed what the dealer said. This appears to be a characteristic of the 4.7 "squish/squeeze" engine.

Last edited by ghorn; 06-23-2014 at 12:54 AM. Reason: My comment was not kind to those people who fall for snake oils.
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Old 06-23-2014, 12:53 AM
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Well I gave it a try can't seem to hurt and have not been steered wrong before by either Roger or GT.
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Old 06-23-2014, 05:58 PM
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I use Seafoam= good stuff. No issues what-so-ever.
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Old 06-24-2014, 12:11 AM
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I dunno I have major "soot" on my chrome bumper on the corner right where the tail pipe is on mine. I had it very minor originally, I thought it was rom the previous owner idling a lot(rental for construction companies) and it mostly cleaned off. Since then I've got a tuner and deleted the catalytic converters and on a towing trip from FL to NC the corner of my chrome bumper turned BLACK lol. Oh well, I'll take a black corner of the bumper with a 50+hp gain over clean bumper and 0hp gain any day lol
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Old 06-24-2014, 01:36 AM
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I solved my black bumper issue by cutting the pipe right in the middle of the last turn before it exits the side of the truck. Now I no longer get a black bumper and it looks great.
Mick
P.S. I painted the remaining pipe and resonator black. Now its harder to see it.
Oh and my truck has left black stuff on the bumper since the day it came home.
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