7.3 Powerstroke running like crap... Please watch video and help! - Ford Powerstroke Diesel Forum
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Old 06-01-2013, 06:30 PM
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7.3 Powerstroke running like crap... Please watch video and help!

'99 Ford F350 4x4 with 7.3 225 K, auto trans. 4" exhaust and TS 6 position chip. Was running good when I left the house today. I started to notice a decrease in passing power on my way to my destination. I also noticed that the truck seemed sluggish from a stop. On my way home the truck started to run worse. It would barely pull a hill at 40 mph that I could usually take as fast as I wanted. By the time I pulled into my driveway the truck was barely making any power and idling rough. If I revved the engine in park there was a noticeable cloud of white smoke coming out of the tail pipe. I was hoping my problem was a fuel filter. I got a new filter and filled the bowl with ATF when I replaced it. The truck fired right up and ran good afterwards but as soon as I got it warmed up and out on the highway it started acting up again. Truck is not throwing any codes! I will be posting a video as soon as I get it uploaded!
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Old 06-01-2013, 06:36 PM
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Here's the address for the video of my truck. Please watch it: 7.3 Ford Powerstroke running like crap - YouTube
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Old 06-01-2013, 06:39 PM
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No noise? I had the same thing happen a couple of weeks ago but there was a sucking air humming noise. Turned out my turbo was going.
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Old 06-01-2013, 06:44 PM
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Possible fuel supply issues. Just guessing without testing anything.
How much fuel in your tank?
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Old 06-01-2013, 06:45 PM
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The truck had about 1/4 tank of fuel when it started acting up.
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Old 06-01-2013, 06:46 PM
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The turbo is working just fine.
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Old 06-01-2013, 06:48 PM
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Quote:
Originally Posted by bridgerlogger View Post
The turbo is working just fine.
Have you spun the shaft and checked for play?

Quote:
Originally Posted by bridgerlogger View Post
The truck had about 1/4 tank of fuel when it started acting up.
I'd lean towards fuel issue with no other info than that. If you full it 100% full and it's fine, for sure that.
The pickup assemblies shake apart and suck air. Drop tank, fix, reinstall. You might have junk clogging it up too.
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Old 06-01-2013, 06:58 PM
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Just noticed that if I turn the key on the fuel pump on the frame rail is really noisy! Sounds like a swarm of angry bees. Is that related to my problem?
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Old 06-01-2013, 07:03 PM
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Very possibly.
I bet it's sucking air. I can tell when mine is.
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Old 06-01-2013, 09:48 PM
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Haha! Replaced the fuel pump. Problem solved!
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