6.0 boost problems
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Junior User
Joined: Feb 2014
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Not at 5" turbo back... The wiring on the pigtail is very clean no problems... Replaced with an OEM sensor.
Logistics Pro
Joined: Dec 2004
Posts: 4,138
Likes: 7
From: South Weber, Utah
The only other thing that could be suspect in my mind is the VGT solenoid valve itself.
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Junior User
Joined: Feb 2014
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I originally thought vgt solonoid but I ruled it out because my boost remains constant... Doesn't fluctuate at all when the truck studders and the ebp does. Boost also works flawlessly with ebp unplugged it's just slow to build boost.
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Junior User
Joined: Feb 2014
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I do however hear what I think is the turbo cycling up and down but the boost gauge remains pretty steady while accelerating... It cycles on and off, on and off... Kind of like an airy sound. Also the truck when cold start smokes white cloud just a second and the truck at wot with both ebp plugged in and not plugged in produce a small white cloud of smoke. I just want to drive my truck 😭 I have well over 10k or repairs this year in it and can't afford any more. I'm praying it's an easy fix. But I don't know what else to do... I was gonna check for an exhausts leak but I didn't have anyone who could help me today
Fleet Owner
Joined: Mar 2003
Posts: 24,724
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From: Blue Hill Township
I do however hear what I think is the turbo cycling up and down but the boost gauge remains pretty steady while accelerating... It cycles on and off, on and off... Kind of like an airy sound. Also the truck when cold start smokes white cloud just a second and the truck at wot with both ebp plugged in and not plugged in produce a small white cloud of smoke. I just want to drive my truck ?de2d I have well over 10k or repairs this year in it and can't afford any more. I'm praying it's an easy fix. But I don't know what else to do... I was gonna check for an exhausts leak but I didn't have anyone who could help me today
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Junior User
Joined: Feb 2010
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From: Francis, SK
I have a truck I just put a drop in engine in for a customer and it has similar issues to yours. With the white smoke and turbo fluctuations, has anyone thought about a fuel issue? If a truck is starving for fuel it can blow white/grayish smoke. Can you check your fuel pressure? Is your frame rail pump noisy?
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Junior User
Joined: Feb 2014
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I have a truck I just put a drop in engine in for a customer and it has similar issues to yours. With the white smoke and turbo fluctuations, has anyone thought about a fuel issue? If a truck is starving for fuel it can blow white/grayish smoke. Can you check your fuel pressure? Is your frame rail pump noisy?
Mountain Pass
Joined: Oct 2010
Posts: 237
Likes: 3
From: Athens, Tx
Unfortunately fuel pressure isn't monitored by the PCM so you can not pull it through a scanner. You are going to need to get an aftermarket fuel pressure gauge and install to monitor. There is a brass allen-head screw on the side of the FPR where you want to tap into.
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Joined: Feb 2010
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From: Francis, SK
I got the truck fixed that I had mentioned earlier. Would start with a cloud of white smoke then would progressively run worse and had a miss. Error codes were cylinder 2 and 4 contribution. Ended up I either didn't get injector 4 tightened down enough or washer damaged which lead to combustion chamber gases melted the lower o-ring on the injector filling the cylinder with fuel. In either case that's what I found.
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Junior User
Joined: Feb 2014
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I got the truck fixed that I had mentioned earlier. Would start with a cloud of white smoke then would progressively run worse and had a miss. Error codes were cylinder 2 and 4 contribution. Ended up I either didn't get injector 4 tightened down enough or washer damaged which lead to combustion chamber gases melted the lower o-ring on the injector filling the cylinder with fuel. In either case that's what I found.
Laughing Gas
Joined: Nov 2014
Posts: 765
Likes: 5
From: Long Island, NY
If he did I doubt he is coming back to tell us. His last activity here at FTE was in 2014. Last Activity: 11-05-2014 10:19 PM
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