Exhaust flame
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Junior User
Joined: Jan 2004
Posts: 57
Likes: 0
From: Virgina
Exhaust flame
So I cut off my muffler yesterday and hear a strange popping noise, I ignore it until this afternoon and look under my truck and theres about a 2 foot flame coming out the pipe. I guess my air/fuel mixture is way to rich is that what it is or is it something else? How do I fix it?
Laughing Gas
Joined: Jun 2003
Posts: 1,048
Likes: 16
i just put some headers on mine and heard quite a bit of poping on the way to the muffler shop, and they told me unburned fuel was explodeing in the collecter. and the new exhaust system solved most of the backfiring.
Hotshot
Joined: Oct 2002
Posts: 18,488
Likes: 22
From: The Big, Oregon
Yeah, mine started doing that in ID. Coming down the mountains at night, it would blow about a 6 foot flame out both pipes. Does it even worse with the single 3" now. Driving at night, I can see the road under the truck light up.
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New User
Joined: Dec 2003
Posts: 9
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I don't know why you guys are complaining about a flame coming out of your exhaust pipe. Some people pay good money just so there vehicle can do that and you guys get it for free. If this was happening on my truck I would put dual stacks sticking straight up in the air. now that would be tight
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Brett Foote
Elder User
Joined: Aug 2003
Posts: 545
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From: Houston
The air pump Injects fresh air into the exhaust so it can be re burned to lower emissions. Man I barely got any sound coming out of my exhaust; except for a small popping sound and a high pitched whistle (humm wonder if that’s good?) If I had a flame and it wasn’t hurting nothing I would probably keep it 
May not be the best idea though lol, try to get it looked at.
May not be the best idea though lol, try to get it looked at.
Postmaster
Joined: Mar 2002
Posts: 3,545
Likes: 4
From: Coal Region
Coming down the mountains at night, it would blow about a 6 foot flame out both pipes. Does it even worse with the single 3" now. Driving at night, I can see the road under the truck light up.
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mikedeason
1999 - 2016 Super Duty
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Dec 16, 2006 07:32 PM