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Discussion Starter · #1 ·
I have a 2011 F250 with the 6.7 in it. When I set the cruise control the turbo will surge from 10 pounds of boost to 0 pounds of boost, then it will level itself off...I don't know if it has been doing it all along and I just noticed it or if it just started doing it. I would greatly appreciate it if some of ya'll could keep you eye on your boost gauge. It ONLY does it with the cruise set, No bogging down or hesitation what so ever.
 

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I have a 2011 F250 with the 6.7 in it. When I set the cruise control the turbo will surge from 10 pounds of boost to 0 pounds of boost, then it will level itself off...I don't know if it has been doing it all along and I just noticed it or if it just started doing it. I would greatly appreciate it if some of ya'll could keep you eye on your boost gauge. It ONLY does it with the cruise set, No bogging down or hesitation what so ever.
:ORG welcome:
No issues here.
 

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Mine also does the surging, I pulled a dump trailer around today some. After I unhooked the trailer and started driving it again and set the cruise it was pretty surge. But after a few miles it all went back to normal, I also have a afe on intake on my truck. I don't really think it's anything to worry about.
 

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I've noticed mine does this as well, usually for 3 or 4 miles at highway speeds with the cruise set. But, when I watch my mini maxx display, there is no variance in boost, as it stays steady at 4 psi..... so, I wonder which gauge is right, the dash gauge, or my mini readout??
 

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Discussion Starter · #7 ·
Mine does the same thing. Thats what made me notice it, My head rocking everytime the turbo spooled up. My wife works in the service department at the nations 2nd largest Super Duty dealer so I get treated better than most when I go in for service and what not. I brought it in for the surging so she got a tech to go ride with me with the lap top hooked up and of course I COULDN'T GET IT TO DO IT!!! But he did say he didn't think it was detrimental to the turbo, more of a nuisance.
 

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Mine does it as well, it drives me crazy. I have seen my 6.7 do it for 15-20 mins on flat ground with the cruise set just to see how long it would actually keep surging. Mine usually stops surging when I start climbing a hill. Now soon as it starts surging, I kick the cruise off for a couple mins then reset the cruise. Seem to fix it .
 

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Mine also surges.. Ford is aware of the issue and will replace your turbo to fix the surge. I was told yesterday by a reputable Ford tech that elevation plays a role in the surge. I dont know where you are all at, but I live at about 4500 ft. and mine surges real bad. He also mentioned that he thinks there has been a redesign within the turbo that eliminates this issue. Take it in for a fix or leave it, its up to you.
 

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Discussion Starter · #11 ·
This is from Ford. " There have been reports of a reported surge with boost gauge flucuation olny when in cruise control on some 6.7 vehicles. The customer may see the boost gauge flucuating and hear an audible change in the engine.

Engineering has found that this condition typically occurs around 1,500 RPM and at speeds between 60-65 Mph only while cruise control is on. This characteristic will not be present while using the A/P pedal. This is a normal characteristic and is caused by the PCM trying to keep the torque set point and speed the same.

Due to the stack up tolerances between several components (turbochargers etc.), some vehicles are quicker to respond and some are slower to respond. Engineering is aware and has stated that it is a normal charactistic of the vehicle. No further diagnostics or repair is recommended at this time for this symptom."
 

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6.7 Turbo surging

I have a new 2012 6.7 just got it was really feeling it out on the way home noticed the boost gauge moves around allot in a strong cross wind also drops off when coming up on a big truck but not to the point of surging. They may have fixed it mine has the usual turbo lag although not as bad as I was expecting I can crowd it and light up the tires easily though what surprised me was the aggressive 1-2 shift when pushing it and the turbo is in a happy place.
I now have a whopping 73mi on it we will see.
 
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