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Loss of Power Towing 5th Toyhauler

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Loss of Power Towing 5th Toyhauler

  #16  
Old 10-01-2015, 06:03 PM
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Originally Posted by sdetweil View Post
you are quite the lucky one! don't change what you are doing
I don't try to beat them down out of most their profit...
I've also never been turned down on a warranty claim - even a car that was 5k and 3 months out of warranty...

Dealers remember how you treat them...
 
  #17  
Old 10-01-2015, 06:35 PM
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I beat them down out of every last penny I can. Just like they are trying to do to me. I'll buy my own DEF...
 
  #18  
Old 07-01-2017, 04:39 PM
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Power loss 6.7 while towing

I had the same loss of power pulling up a not so steep incline and a mountain pass. I felt a miss and sudden loss of power. Had to pull over to the side of the road as the truck would hardly pull itself. This happened three times in a row. No codes were set. Unhooked from trailer and truck ran great. Finally had to call for help and switch to another truck to finish trip. Put truck on a dyno and found no problems. Going to hook back up next week to take another try. Any ideas? 2011 F250 6.7
 
  #19  
Old 07-01-2017, 04:41 PM
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I'd be looking at the HPFP if I were you. VCV might be an issue. Any codes?
 
  #20  
Old 07-01-2017, 04:46 PM
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Originally Posted by glenngjl View Post
I had the same loss of power pulling up a not so steep incline and a mountain pass. I felt a miss and sudden loss of power. Had to pull over to the side of the road as the truck would hardly pull itself. This happened three times in a row. No codes were set. Unhooked from trailer and truck ran great. Finally had to call for help and switch to another truck to finish trip. Put truck on a dyno and found no problems. Going to hook back up next week to take another try. Any ideas? 2011 F250 6.7
Any kind of mods been done to it?
 
  #21  
Old 07-01-2017, 04:48 PM
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Had two different shops look at problem, neither could pull any codes to find a problem. No modifications
 
  #22  
Old 07-01-2017, 04:59 PM
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I'd be looking at two things -
1) Fuel filter
2) Restriction in the tank (a number of guys have found the cap seal from fuel additives stuck in the intake)

Dyno pulls will not pull the fuel the way that dragging a heavy trailer up a steep hill will and the dyno pulls are typically shorter in duration.
 
  #23  
Old 07-01-2017, 05:08 PM
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Replaced both filters, did not fix problem.
 
  #24  
Old 07-01-2017, 05:15 PM
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Do you use a fuel treatment in the fuel system?
 
  #25  
Old 07-01-2017, 09:28 PM
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Had not added any fuel additives, but have since began to add, but have not tried to tow.
 
  #26  
Old 07-02-2017, 07:21 AM
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Something is shutting it down but failing to record the event it sounds. I think a live data stream with the rig in tow is in order to find it.
 
  #27  
Old 07-02-2017, 08:43 AM
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Originally Posted by golfmedik View Post
Something is shutting it down but failing to record the event it sounds.
In my half ton truck, that symptom would point to a fuel pump or at the very least a fuel delivery issue. Why the fuel pump doesn't throw a code is beyond me.
 
  #28  
Old 07-02-2017, 09:39 AM
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Originally Posted by HRTKD View Post
In my half ton truck, that symptom would point to a fuel pump or at the very least a fuel delivery issue. Why the fuel pump doesn't throw a code is beyond me.
My thoughts exactly...
 
  #29  
Old 07-02-2017, 10:22 AM
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Next weekend I'm going to hook up a scanner and take a drive with my son-in-law, who is a mechanic to see if we can find anything. Hopefully the scanner will find something.
 
  #30  
Old 07-02-2017, 10:23 AM
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do you have a scanner that can read the ford specific codes?
 

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