Surging Problem - Ford Powerstroke Diesel Forum
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Old 04-04-2007, 05:09 PM
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Surging Problem

First post.....Hello All!

Anyways I just picked up a '02 F350 Powerstroke (77k miles) and all was well for the first few days until I just recently got this surging problem. It idles fine and accellerates fine but when just trying to maintain a constant speed it surges. Like when i'm cruising on the highway and let off then get back on it just slightly, it has superfast throttle response and instantly has a neck jarring bang of accelleration. Also from a dead stop when I try to take off as slow as possible it acts like I mashed the throttle and it has instant throttle response.

It's not only annoying but also quite dangerous in the slushy wintery conditions like we in Massachusetts had today. It also makes me look like a retard
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Old 04-04-2007, 05:12 PM
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Quote:
Originally Posted by 91turbogsx View Post
First post.....Hello All!

Anyways I just picked up a '02 F350 Powerstroke (77k miles) and all was well for the first few days until I just recently got this surging problem. It idles fine and accellerates fine but when just trying to maintain a constant speed it surges. Like when i'm cruising on the highway and let off then get back on it just slightly, it has superfast throttle response and instantly has a neck jarring bang of accelleration. Also from a dead stop when I try to take off as slow as possible it acts like I mashed the throttle and it has instant throttle response.

It's not only annoying but also quite dangerous in the slushy wintery conditions like we in Massachusetts had today. It also makes me look like a retard
you sure it doesnt have a programmer already installed? most stock 7.3's shouldnt be surging that much...
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Old 04-04-2007, 05:15 PM
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I'm pretty sure its stock. If it isn't then it's not as quick as I thought it would be.
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Old 04-04-2007, 05:17 PM
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Have you changed the fuel filter?
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Old 04-04-2007, 05:20 PM
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I just purchased it not even a week ago from a Ford dealer. I would think they would've serviced it before selling it. So I don't really no if it's been replaced. I know I can bring it in to get it fixed (warranty) but I'd just like to know what it could be so maybe I can fix it myself easily so I don't have to take any time off from work.
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Old 04-05-2007, 08:00 AM
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Day #1 off of work (can't get it into the dealership until tomorrow.)

It seemed like it did it a few days ago but only for a few minutes and it was just after I washed it. And it started again when it was rainy/snowy out.

I'm a newb when it comes to diesels. Any ideas anyone? I know pipelayerjdh mentioned the fuel filter but was curious if anyone else has had this problem and has fixed it.
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Old 04-14-2007, 09:35 AM
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Well I ended up not bringing it back to the dealership yet as the problem went away and couldn't afford another day off from work. Anyways I figured out that is only happens after I wash it or when it's raining. It doesn't do it with cruise control on.

Any ideas on which sensor would be getting hit with water? Or where some kind of electrical connection would have contact with water? I have yet to look deeply into this as it's only a sporadic problem.

Thanks guys.
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Old 04-14-2007, 09:54 AM
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IMO, since you obviously atleast still have a 30 day warranty, I wouldn't bother attempting to figure it out and fix it yourself, make them do the work, unless you don't have something else to drive or they dont give a loaner?
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Old 04-14-2007, 10:20 AM
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The only problem is i'm afraid they will not find a problem because it doesn't happen unless it's wet. Plus I don't really trust the dealer I bought it froms Service department. Considering when I picked up the truck the oil cap was off and placed down by the grill. Only one of the plows pins were installed correctly. Yet it was ready for me to drive home? I suppose I'll try to bring it to another dealer since I purchased an extended warranty. Just seeing if anyone else has had this problem and what they did to fix it. So at least I can go in there with an idea of what it could be for them to fix.
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Old 04-14-2007, 03:48 PM
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See if you can get the truck scanned for any codes. Advance auto parts will do it for free I believe.
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