Ford Powerstroke 08-10 6.4L Discussion of 6.4 Liter Ford Powerstroke Turbo Diesels

6.4l loses power when towing

  #1  
Old 09-18-2018, 07:24 AM
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Default 6.4l loses power when towing

Hello

I have a 08 f350. It has a darkknight tune , with dpf delete completed, egr work done through the reprogramming of the truck last year. no problems previously towing before a couple of months ago. I have an issue when towing my 5th wheel trailer lately which is about 13,000lbs. I replaced my intercooler at beginning of summer, K&N Filter. Without the trailer I have no power issues at all at any speed and when I it the pedal it goes full turbo. With the trailer after about 10 miles I lose all power on the highway. The turbos will not go above 20 psi when this happens. If I pull over and turn truck off for 5 minutes and start to go the same cycle occurs after 10 miles. There are no drivetrain or any other codes thrown.
i will be replacing the low pressure fuel, [email protected] and MAP sensor hopefully this weekend. Any other ideas
 
  #2  
Old 01-17-2019, 09:22 PM
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Have you had the truck read by someone with a scanner with Ford Powerstroke enhanced features?
Examples include IDS, AutoEnginuity, FORscan, etc...

if if you’re reading the truck with a generic scanner, you won’t see all possible codes.
 
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Old 04-15-2019, 01:46 AM
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Well, it depends on the weight but as mentioned in the thread the weight it not too much, maybe something issue in programming, we also are using f350 truck as a Manhattan 24 Hour Towing but they are working well we didn't face any type of issue in towing yet.
 
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Old 04-15-2019, 01:46 AM
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Well, it depends on the weight but as mentioned in the thread the weight it not too much, maybe something issue in programming, we also are using f350 truck as a Manhattan 24 Hour Towing but they are working well we didn't face any type of issue in towing yet.
 

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