Brown smoke out the exhaust - Ford Powerstroke Diesel Forum

 
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post #1 of 7 Old 09-03-2012, 02:48 PM Thread Starter
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Brown smoke out the exhaust

Installed a sct with canned tunes a few weeks ago, and now when I floor the gas brown smoke comes out the exhaust. Any idea what that could mean?

2004 F250 CCSB FX4
  • SCT w/ Matt's SRL
  • MBRP 4" turbo back straight pipe w/ 4" to 6" MBRP black tip
  • Edge CTS
  • Riff Raff Diesel intercooler boots
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post #2 of 7 Old 09-03-2012, 03:58 PM
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I hope your not serious. But if you are, it's unburnt fuel coming out your tailpipe. It's normal with most tunes.
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post #3 of 7 Old 09-03-2012, 04:18 PM
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Brown is kind of odd. Maybe it's more black. But that's just wasted fuel and power because you have too much fuel and not enough air.



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
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post #4 of 7 Old 09-03-2012, 04:38 PM Thread Starter
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It's def not black it's brown and smoggy looking. Ive seen plenty of black smoke from unused fuel but this is way different. One of my friends was behind me and said it looks brown as well.

2004 F250 CCSB FX4
  • SCT w/ Matt's SRL
  • MBRP 4" turbo back straight pipe w/ 4" to 6" MBRP black tip
  • Edge CTS
  • Riff Raff Diesel intercooler boots
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post #5 of 7 Old 09-03-2012, 06:36 PM
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Weird. Dirt?



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
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post #6 of 7 Old 09-03-2012, 06:57 PM
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It is unburnt fuel. My SRL would look a bit brown and hazy when I got on it at first. Now my boost is down for some reason and it is straight black until 3rd gear then it cleans up.

Dik

2007 CCLB F350 FX4
Edge Insight CTS w/ EGT
Fuel Pressure on Column
SCT tuned by Matt at Gearhead
Blue Spring Mod
Zoodad Mod
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post #7 of 7 Old 09-03-2012, 08:05 PM
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how dirty is your air filter?



2013 6.7 with stuff
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