HELP! constant black clowd @ wot...
Thread Starter
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Senior User
Joined: Jan 2006
Posts: 279
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HELP! constant black clowd @ wot...
I think my baby may be sick. Always had a big black puff during a hard take off but now recently I've got a huge black cloud the entire time its floored. Also, its falling short of 40 psi where it usually tops out at.
S&B cai.
Mini maxx
HD300 Hot.
S2M.
4" all the way.
DPF-CAT deleted
EGR shut off.
LBF set on 5. coolant defuel at 170, 220. EGR at 1550. Boost at 42.
S&B cai.
Mini maxx
HD300 Hot.
S2M.
4" all the way.
DPF-CAT deleted
EGR shut off.
LBF set on 5. coolant defuel at 170, 220. EGR at 1550. Boost at 42.
Posting Guru
Joined: Sep 2010
Posts: 2,213
Likes: 1
From: The Woodlands, TX
You know... I've kind of felt like mine doesn't have quite as much "get up and go" as she used to. I'm running almost identical except my defuels are a little more conservative. How's your fluids? Did you get the latest H&S update? I'm gonna dig under the hood this weekend and see if I might have a loose or torn boot somewhere. CAC, downpipe or something. Didn't think too much of it, but then you posted this...
Any OA's? Maintenance intervals?
Any OA's? Maintenance intervals?
Thread Starter
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Senior User
Joined: Jan 2006
Posts: 279
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I did re install the tuning again, didn't change anything. Not fixed. I will say it was shortly after my last service that this problem started. Changed both fuel filters. The one under the truck, drivers frame rail was shot. Couldn't have been working at all. Service department must have missed it the past few times.. maybe I need to check my air piping for a torn boot also. Must be getting plenty of fuel due to the smoke but the boost just isn't coming up..
Tuned
Joined: Feb 2009
Posts: 290
Likes: 17
it could be something to do with the winter blend fuel... maybe thats just how your truck runs on it... have you tried adding Cetane booster? I bought some from Ford and truck seems to run smoother and builds boost better
Cargo Master
Joined: Jan 2006
Posts: 3,011
Likes: 90
From: SE. MA
I would be looking for a blown boot or maybe a severly clogged air filter?
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Thread Starter
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Senior User
Joined: Jan 2006
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A blown boot would make perfect sense and hopefully an easy find, and fix. I'm going to start with that.
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Posting Guru
Joined: Sep 2010
Posts: 2,213
Likes: 1
From: The Woodlands, TX
Good to know. I was looking today while fueling and I've got a good amount of a black oily substance on the cold side CAC boot going into the CAC. I'm wondering if that's leaking somewhat. I'll remove and clean it up tomorrow. Other boots all checked out ok from a basic visual inspection.
Posting Guru
Joined: Sep 2010
Posts: 2,213
Likes: 1
From: The Woodlands, TX
Ford also claims that 5% fuel dilution is normal, they also told me that my "death wobble" is because my tires are bad....
