Ford Super Duty (1999-2016) :: 2003 - Truck Lost Most Of Its Power - Running Sluggish

My 2003 6.0 truck lost most of its power. It has the SCT programmer. It used to run great it would roll coal really well then it slowly started to run worse. Now it runs really sluggish especially when its cold. IT takes forever to warm up. On the freeway when ur going a constant speed it bucks and jerks a lot. It won't roll coal anymore and just runs like crap. A mechanic said I had 3 bad injectors. But I don't believe it.

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Ford Super Duty (1999-2016) :: 2003 F250 - Harsh Shifting / Sluggish / Loss Of Power

I have a question for everyone out there with any insight of the harsh shifting with these trucks. I have a 2003 f250 super duty with the 5.4l and 126,000 miles on it. The problem I'm having is some weird shifting that has been going on over the last six months and I feel like I am just throwing money at this problem. My truck shifts hard from 2nd to 3rd and from 3rd to 4th with the most violent shifts being from 3rd to 4th! Between shifts is where it Is sluggish I mean if I am not on the throttle from those shift points I switch from driving a truck to a geo metro it is night and day with the felling of loss of power!

I have had it scanned at my local ford dealership and had a full diagnostics done and all I got was "it's since truck and a nice bill to come with it" they couldn't find a thing. So far I have all new motorcraft plugs, cops, changed fuel filter, had my catalytic converter checked if it was clogged,run on two different power balance tests! Still nothing! So now I'm lost I have heard things about these trannys and the lock up but I was told this only had to do with overdrive and it wouldn't happen at other gear changes. I still drive it everyday I have just figured out ways to calm it down if I stay off the gas when it's about to shift for a couple seconds then get back on the gas it is like it never happened.

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Ford Super Duty (1999-2016) :: Truck Will Not Start When Cold - Code P1378

05 6.0 72,XXX miles. Will not start when cold (below 40ish) outside and engine is cold. Throws a P1378 code and no others (per the BullyDog Gauge Tuner that came with the truck). Checked the FICM with the voltmeter test on a morning it wouldn't start. Never dropped below 48 volts through the whole test. I can clear the code, try and start the truck and it comes back as soon as I try to crank it again. Warm days=no problems at all.

Oh yeah...I did go through the harness from the FICM to the injectors a while back and found a couple spots that were rubbing on various bolts. Peeled the insulation back and taped up the bad spots to keep from grounding something out so I don't think it's a harness issue. Also found a ground wire off on the back side of the FICM and reconnected that on the nearest valve cover bolt.

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Ford Super Duty (1999-2016) :: Truck Keeps Throwing Communications Code And Goes Into Limp Mode

I recently bought a h&s tuner and installed a dpf delete kit. Everything works great when the truck is not plugged in to the tuner although when I do plug it in, the truck keeps throwing a communications code and goes into a limp mode until I delete the code. I believe it was p0073 but i maye be mistaken. Regardless it has to do with communicating through the obd2 port. I sent the tuner in to get checked out and it turns out its something to do with the truck. I've checked all the fuses and tried to check for broken wires. Where to look next?

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Ford Super Duty (1999-2016) :: Truck Shudders And Almost Dies When You Drop It In Gear - Code P1747

Its a 1999 f250sd 5.4l auto. Has code p1747. Truck shudders and almost dies when you drop it in gear, put it back in park idles fine. I have read all the post on here about this and checked wires from trans up to pcm look and test good. Tested plug c1048 wires with digital meter to body ground with battery unhooked and got 6.66k ohms on pin 11 circuit 925, 421 ohms pins 1 and 12. Plugged c1048 back to trans checked 925 w/y wire at plug c103 got 9.1 ohms back to trans. Is the epc solenoid bad or is it pcm. I think its epc but want to verify before i take trans apart.

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Ford Super Duty (1999-2016) :: 2003 - OD Blinking / No Power / Truck Won't Go

I have a 2003 F250 5.4 auto trans and I live in Minnesota where it has been -15 and my truck won't go. It has only half power it acts like its cutting out and it won't even hardly move in Drive if I put it in 1st or 2nd it will go or reverse but the engine is only half power the OD button is flashing the check engine light came on and I pulled the codes and there is 7 of them. I think its electrical issue but don't know where to start! Here are the codes, P0443, P0750, P0755, P0743, P0135, AND (P1747) which my book doesn't go that high?

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Ford Super Duty (1999-2016) :: Power On And AC Blows When Shut Off The Truck

My truck is a 2000 f350 with a 7.3 init but when I shut it off and open the doors the power is still on in the truck and ac blows then shuts off. Relays are going crazy and I can not find the problem.

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Ford Super Duty (1999-2016) :: 2005 - Acceleration Is Very Sluggish

My '05 5.4 SD CCLB is running badly. 95k mikes. Plugs done 6 months ago. Acceleration is very sluggish. Sometimes uphill from a stop is almost impossible.

No CEL codes other than an intermittent coolant temp gauge that spikes but resets as soon as I shut down and restart.

When it is bogging the exhaust note changes - almost like there is a blockage. It is almost a booming sound. I would like to test to see if the cat is clogged. I have a vacuum gauge but need to find a vacuum source after the throttle body to do so. If I pull out the O2 sensors ( to allow the exhaust pressure to exit ) would the truck run badly because the O2 sensors were not functioning?

If it turns out that the converter is bad. Can I just eliminate the cats? I do not need emissions testing here in PA because the truck is so heavy. But I don't know if eliminating the cats will cause other problems.

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Ford Super Duty (1999-2016) :: F250 XLT - Acceleration Sluggish With A/C On

2016 F250SD XLT CC 4X4...13K miles... Now with it being blazing hot in Florida I have been running windows up and a/c on. Beginning to notice the truck is not accelerating the same with the a/c on as it does with the a/c off. It seems like it sluggish till it gets to a certain RPMs then you feel it kick in and somewhat take off. Is this normal?

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Ford Super Duty (1999-2016) :: Sudden Loss Of Power / Truck Would Not Go Any Faster Than 45 MPH

I am trying to diagnose a problem with a friends 2002 f350 7.3L truck. the engine has approx. 140,000 miles and is all stock, no programming or aftermarket parts. Anyhow, he said driving down the road the other day the engine all of a sudden lost power and the truck wouldn't go any faster than 45mph. he said taking off from a stop sign, the truck has no power and takes forever to get up to 45mph. after this issue began, he has changed the fuel filter & screen, air filter and fuel pump. The check engine light if OFF, no active fault codes.

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Ford Super Duty (1999-2016) :: OD Light Flashes / Truck Loses All Power

I have a 2001 250 Super Duty. I am having an intermittent issue with the electrical system and transmission. I don't drive this vehicle very much so it sits for 7-14 days at a time.

Previously I had the od light flashing and had the transmission solenoid replaced. A few weeks ago I decided to drive it to the corner store. As I arrive home the od light starts flashing and the transmission starts shifting funny. I pull into my parking spot and turn the truck off. I sensed the shut off was weird so I tried to start the truck. NO POWER! None! I go back to the truck a few days later and it starts up without an issue.

Approx. 20 miles later it starts again. This time I have to jump the battery. I ran the truck and it drove without issue. Again a couple weeks later it starts in again with the light flashing and electrical dying. What it may be? I'm probably going to get rid of the truck as I can;t justify to myself to keep dumping money into it.

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Ford Super Duty (1999-2016) :: Loss Of Power / Smell Of Diesel When Truck Turned Off

Here in the last week or so I have noticed what seems like loss of power in my 04 F250. When I get on the gas it doesn't seems to respond like it used to. When I turn off the truck i can smell diesel a little bit. could it just be a clogged injector, bad plugs or what?

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Ford Super Duty (1999-2016) :: 2006 F450 - When Take Key Out Of Ignition Power Stays On In Truck

I am working on a 2006 f450 6.0l. My problem is when I take key out of the ignition the power stays on in truck. Radio stays on and windows. I swapped out relays checked door jam switch I am stuck. Looking for wiring diagrams so I can trace the wire.

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Ford Super Duty (1999-2016) :: 2001 - While Taking Away Sluggish - Skipping At Idle?

just bought a 01 f350 v10, 40,000 miles, plowing beast, anyways when taking off truck seems sluggish, give it more gas as its fine. At idle there appears to be a skip. There are no check engine lights on, could it be the coil pack or even maybe fuel problem? Have done plenty to this beast to get it close to perfect and this motor issue is it.

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Ford Super Duty (1999-2016) :: 2002 F350 - Shifting Really Sluggish Between 1st And 2nd Gears Only

2002 f350 7.3 ... problems started all of a sudden one day. I have an edge evolution tuner in my stroke. I have it set to make all of my shifts firm. One day it started shifting really sluggish between 1st and 2nd gears only. It don't do it all the time, but it does it more often then it doesn't. I have also noticed when i come to a complete stop and then start out again it seems that it doesn't downshift all the way back to first and when i hit the gas it seems to kinda be stuck between gears and it barely moves until i get the rpms up before it will ease its way into 2nd and the converter locks up.

It shifts a through all the other gears just fine nice and firm like it should, its just the shift between 1st and 2nd. Im wondering if maybe it might be the speed sensors or maybe the tranny filter is getting clogged up? The fluid in it is still nice and red and up to the level it should be. I just bought the truck in october and the fluid was nice and red when i bought it, but who knows if they changed the filter. I have had NO tranny problems with it up until a few days ago when this little problem started.

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Ford Super Duty (1999-2016) :: Truck Losing Power Then Starts Bucking Like Water In The Fuel

I have another very odd problem with my 2003 F250 7.3 PS with 206000 miles on it.

I am visiting my parents and every time I go thru this certain area my truck will act up. The first thing that happens is the truck starts losing power and then it starts bucking like water in the fuel or the cam position sensor is giving out.

WHAT I HAVE DONE SO FAR: I have drained the fuel filter assembly ( no water ) and a new cam position sensor has been installed (about 5000 miles ago, I even put old one back it to check it out same results). I have driven the truck all over the place and don't have an issue except in this ONE spot. I am beginning to think there is some kind of high powered RF going on in this area causing my truck to act up. I am thinking of hooking up my autoenginuity scanner up to it and hopefully see something going on.

Is there anything I can do to block this out if it is a RF problem. I think it is effecting my Pcm/ECM for then engine causing the truck to act up.

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Ford Super Duty (1999-2016) :: 2003 Truck Started Losing Power When Going Down The Road And Then Died

I have an 03 with a 6.0 diesel, going down the road and started losing power and then died. Won't start, and I don't have a scan gauge. Several sources said ipr valve, and from videos on youtube I thought may be a good place to start. I bought a socket and pulled the valve, to check the screen. There is no screen whatsoever on the ipr. The oils clean, as I had changed it about 200 miles ago, and I ran a magnet in the hole looking for a screen, couldn't find anything so I used my fluid pump in the hole. No trash, screen or anything. Do some ipr valves not have screens? What would be my next step??

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Ford Super Duty (1999-2016) :: 2006 F250 5.4L - Sluggish / Low Idle And Stalling At Stops

Bought this truck a few months back. Nothing but problems. I always thought it has felt a little underpowered and hesitant. I chalked it up to being a 5.4l in a f250. Well now im thinking it has been a symptom all along.

Lately, the truck has been stalling at stops. Randomly, but not often. The truck idles at 750rpm when I start it, but after driving and then coming to a stop while in overdrive it idles at 400rpm. This seems too low to me.

It hesitates occasionally when giving it throttle. Just today it got really bad and was almost unresponsive. I would hit the throttle and it would just idle while randomly kind of shooting up in RPS and shuddering. It finally produced some error codes, it looks like, but I am afraid to drive it all the way to the autozone.

I am thinking TPS. Is the TPS attached to the pedal or is the TPS attached to throttle body under the hood? I've read some conflicting stuff about this. The good news is that if it is the TPS then it should act like a whole new truck after I replace it.

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Ford Super Duty (1999-2016) :: P0088 Code - No Loss Of Power

So I'm not sure if I bought a lemon, but i picked up a F-350 6.4 Turbo Diesel two days ago and the check engine light came on yesterday. It's giving me a P0088 Code as well as the P0088pd. It's got 131,000 miles on it so no warranty will cover me.

I'm tracking the TSB put out telling the techs to replace the HPFP, but they mention a loss of power. I've only had the truck for two days, but I've driven them for work before and I can't detect any loss of power. Besides the code, everything seems to be running fine.

What can I can try out before running out and changing the HPFP? I'd rather not cut so deep into my savings if I don't have to.

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