Power loss on highway - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 01-16-2012, 12:56 PM Thread Starter
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Power loss on highway

My truck is loosing power intermittently on the highway. When I'm driving at 65 mph (1750rpms) my truck looses power, not all just some (enough the feel) then it will came back by itself about 10 seconds later. No drop in turbo psi ( that I can tell) and no smoke. It's done it a few time at other speeds but mostly only at the speed posted above.

Thanks for any help
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post #2 of 8 Old 01-20-2012, 07:08 AM
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My truck was doing acting similarly just the other day. Its now at the dealership having the EGR replaced. Throwing any codes?
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post #3 of 8 Old 01-20-2012, 09:01 PM Thread Starter
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It hasnt made any lights come on but I haven't hooked anything up to check codes
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post #4 of 8 Old 01-21-2012, 01:28 PM Thread Starter
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Did the new EGR valve fix the problem?
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post #5 of 8 Old 01-22-2012, 07:54 PM
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I recently had the same problem. After numerous attempts to diagnose the problem, it turned out to be an electric short caused by the wiring harness rubbing against the frame. On the driver’s side front just behind the tire in the wheel well there is a hole in the frame with a large group of wire running through it. The wiring harness rubbed against the frame and a wire to the egr valve was damaged.
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post #6 of 8 Old 01-24-2012, 08:08 PM Thread Starter
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Is there any way you can take a pic of these wires I could not find them


08 250 XLT CCSB auto,4x4, 3" Rough country lift with, 35x12.5, XRT PRO tuner, DPF/CAT delete, A&B CAI

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post #7 of 8 Old 01-28-2012, 11:43 AM
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Sorry, It took a little time to get back to you. Here are the best pictures I could get. Showing where to start looking. We used a radiator hose around the wiring to protect it from the frame. Good Luck
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post #8 of 8 Old 01-28-2012, 11:46 AM
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More Pics.
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