6.4l loses power when towing
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Joined: Sep 2018
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6.4l loses power when towing
Hello
I have a 08 f350 180,000 miles. 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, IAT@ and MAP sensor hopefully this weekend. Any other ideas
I have a 08 f350 180,000 miles. 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, IAT@ and MAP sensor hopefully this weekend. Any other ideas
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Joined: Jan 2019
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We had a similar issue with our 6.4 and we replaced the fuel filters and ever since then we didn’t have that issue anymore. Not saying that’s it but I’d defiantly give that a look at because when I pulled them out the diesel dripping from the filters was BLACK
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showpony
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