Ford Super Duty (1999-2016) :: V10 Runs Rough With 1/2 Tank Of Gas
Sep 30, 2013
My truck started running poorly with an intermittent miss about 6000 miles ago. The miss gets more consistent when the tank is below 1/2. Fill it up and the miss goes away. No codes, shop that does a lot of V10 camper work could not figure it out.
My guess is that the fuel pump is going out and it overheats when the tank is low. The problem is getting progressively worse. Now it misses slightly with 3/4 tank and even a full tank sometimes.
Plugs have been changed, fuel filter has been changed, and the shop found 3 COPs that were bad before all this new intermittent miss started. The truck runs ok at wide open throttle.
Am I just nursing a bad fuel pump that will leave me standed soon? Truck has 170,000 mile with original fuel pump.
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I bought a 2003 F550 Super Duty 4WD, cab and chassis truck. It has a 7.3 TD. Real nice truck. I bought it to turn it into a wrecker. I removed the factory fuel tank (was behind the real axle inside the frame rails.) I installed a 50 gallon aluminum tank behind the cab on the frame rails. The rear tank has to be removed for the wheel lift.
Any way I have everything installed and now the truck dies out after a few minutes. It starts up fine then dies out like its starving for fuel. The tank I installed has a sump pickup (tank came off a freightliner, so its not some home made thing I just welded up in the garage)
I was thinking about installing an auxiliary lift pump as the auxiliary tank is a bit higher than the factory tank, but I want to solve the issue not throw parts at it. I thought at first injectors but it runs perfect after I prime it so my guess is its not the injectors.
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2004 F250 V10, runs good until it warms up whether it's hot or cold outside. While on freeway, it really shakes while cruising, but of you get in the gas enough for a kick down, seems to be pretty smooth. I've changed the coils, and 9 plugs (one wouldn't budge, but the others I took out looked fine) to no effect. Where else should I look? Also, no CEL, and no codes, which seems odd as bad as it feels...
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So, my truck runs really rough when I am @1500 RPM and lightly feather the gas. I have replaced all coils and plugs. Used dielectric grease. Replaced air filter, replaced ICU, changed transmission fluid. The thing still "shudders" ... 2004 f250 5.4 ....
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Have a 2006 F350 5.4l that is mainly used as a plow truck. I drive it at least once a week when not plowing just to make sure it runs ok, etc. Only put on about 2,500 miles per year. Keep it in good repair - not by me, but by the dealer or mechanics.
Problem - last two times I started it, it started ok but runs real rough for about ten seconds. Sounds like the engine is going to die. After about ten seconds, it "catches" and runs normal. Have no problems when driving it. If I restart it, it doesn't do this, so it seems to only happen when the engine is cold.
Battery was brand new back in Sept. All plugs were replaced maybe 3 years ago, as was the cat converter and muffler. Run non-ethanol fuel. What might be causing it before I bring it in.
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I just bought this 99 f250 7.3 Powerstroke last week.. drove it all week fine, I car pool with a family member to work and asked his girlfriend to plug my truck in for me, well she didn't and it had stalled on the way home one morning but started up after cranking a few times i thought nothing of it. Drove it a little bit that day and it was fine, while I let it idle in my drive way as I prepared to go work it started running really rough then died. It took a long time to start again..now it's happening all the time. I changed the fuel filter and someones telling me there's air in the lines..
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Getting these lean codes P1131, P1151, P0171, P0174. I was getting a knock sensor code before but not now. It will not idle it just dies and runs rough till I get at higher rpms gotta feather the brake and gas to go anywhere.
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2002 f-350 diesel 4x4 7.3l. It stalls out a few times lately( and starts right back up) and it runs rough like there is an air bubble then smooths out. Changed 1 fuel filter and the pcv valve. 96,000 miles.
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I have a 03 250 5.4 with 160k. I just recently replaced #4&3 coil packs. Truck was running great again. Then a few days later the truck was running extremely rough and white smoke from the exhaust. I noticed the pcv valve was not all the way in(pretty much out) put it back in and ran fine for two days now running rough every now and then and the pcv valve is making a vibrating noise but stops if I pinch it slightly. I did replace the plugs a year ago.
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Let me start with I have a 2003 f250 5.4. The motor blew on my truck and I had a 100k motor dropped in it. I've put new spark plugs, ohmd out the coils. I tried both sets of injectors. cat delete and new fuel pump. It has rough idle and stalls but runs fine at higher rpms. Also has basically no brakes. I am thinking vacuum but I've check all the lines. No codes either!! also cleaned throttle body.
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Was thinking it was around 38 gallons but I'm thinking it's less than that. I have a 1999 Super Duty V10 with the long bed.
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So I just bought my first car, a 2003 F250 Super Duty with a 5.4 V8 gas engine with 150,000 miles that I will be using to tow my horse trailer. It has some things I need to fix. The main issue is that it wont start.
When I first went to look at it I tried jumping it, as the battery was dead and I still couldn't start it, though it was turning over. The previous owner then tried jumping it the next day, got it started and met me half way where I bought the truck. Turned it off where we met and it started right up again and I drove it home. It sat in my driveway overnight and then wouldn't start the next day, though it is turning over like before.
The battery is only a month old. There is another sensor issue where they had to disconnect the dash or the truck would randomly stop running. I believe it's the speed sensor? I received the repair reports from the dealer saying "code B1352 in memory for ignition key fault" and they removed an aftermarket remote start. "four U1027 and other U codes found, replaced crankshaft sensor".
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I bought a 2016 F-250 Lariat, Crew Cab, Short Bed, 4X4, 6.2 a couple weeks ago. One thing I had to have was remote start. My truck was not manufactured with remote start so the dealer installed the Ford 1 way remote start system. The system works fine however the air conditioning fan runs on the lowest speed when remote starting until I put my key in the ignition at which time it reverts back to wherever it was set when I shut the truck down. The whole point of the remote start for me is to get a head start on the truck cooling off but with the fan on low when remote starting it defeats the purpose. How I can change the setting so that when I remote start the fan runs on high? Dealer is clueless and the settings in the truck only allow to turn the system on and off and run time duration.
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I had a new Fuel Pump put in the cheaper plastic one into my 2001 F250 5.4 with a 112,000 miles.
Problem I am having since getting it back is when filling the gas tank up it will shut the pump off at 3/4 tank. I then have to sit there playing the squeezing game to get more gas in. The vent line looks fine no kinks in it and the tank looks level so what could be the issue causing me this headache?
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Just got back from a 2500 mile trip and the 800 mile DEF warning came on. Went to a DEF pump but it just filled the neck. Went to another DEF pump, same . Went home and used a Ford DEF jug with the Ford spout. It still will not go in. If I squeeze the jug, I can hear a little bit dropping into the tank.
The vent and fill pipes are not kinked. The vent hole in the fill tube looks clear. I washed off the top of the tank since there is a vent there.
Still no fill. I do not have a bore scope to look in the fill tube. I ran a 1/2 inch flexible hose down the fill tube until it stopped. Still no fill.
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How hard is it to drop a gas tank from 2001 F250 short bed? It is a gasoline, not a diesel truck. I need to remove the filler neck to modify it and I cannot disconnect the hose from the neck filler to the tank while the tank is in the installed position. So, I want to drop it so I can have more leverage to pull it off or cut it off and put new one on.
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2003 F350 6.0L ... 171,000 miles ... 5,100 since oil change 15W-30 at the shop ...
I was driving on the interstate (50 miles of driving) struggling to maintain 70-75 mph at 2,200RPMs. I would accelerate and RPMs would go up to 3,000 but no speed. Before I could pull off speed slowed to 50 before dying. Sat on the side of the road 30 minutes before I could get it started. Had to give it gas. No misfires just quietly started. Couldn't go over 30 mph. Towed it to my destination 135 miles.
Volts on 7Pin FICM read fine.
Checked the fuel fulters. Air Filter. Tank for debris. Nothing.
My coolant reservoir was lose and I noticed a lot of coolant in the driverside front wheel well and down the left side of the undertruck. Reattached after checking FICM. Hope that was all it was cause I couldn't find any leaks.
I had Planned to have the oil changed before the return trip before this all happened. New to Diesel engines but I like a challenge. Where do I go next?
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1999 F250 7.3 240k miles .... This is the second truck to act like this on me after I cleaned the in tank filters.
I had to cut the fpr spring to 30lbs for the truck to start fine cold and idle ok but has no power. When hot it wants to die and or dies at idle and has next to no power. ( I'm guessing from lack of fuel) but it's the only way for me to use it. With a new spring and 60ish lbs of fuel pressure, they won't even start.
I cleaned the in tank filters. New fuel filter. new oil. rebuilt the ipr. unplugged the ipc. no loss of boost. checked my uvch, wiggled all harnesses with no difference. I also tried dropping the tank again in case I pinched the return line but that made no difference.
I'm guessing that I need new injectors. I'm not close to anyone with a computer nor can I afford to throw away any more money at the moment.
Totally stumped and cannot seem to find a definitive answer online so far. Both trucks ran somewhat ok before and got worst once I dropped the tank and cleaned the filters which increased the fuel pressure. This is my second truck to act this way.
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I just brought home an 04 F350. It is a V10, 6 speed, with 30,600 verified miles on it. It runs and drives fantastic, and that V10 is impressive! I am very impressed. I have noticed that the compressor cycles, even with the dial in the off position. Is this normal for the super duty, or is something amiss? If something is wrong, what direction do I look in?
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It doesn't say on the window and in the owners manual I should have a 23 or a 35. The most I've put in my truck is 29.somthing and I had 3 miles till empty and the needle was in the red. I'm thinking I have a 30 gallon tank but how can I find out for sure.
I have a 2015 F250 6.2L CC SB FX4
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So my brother swears by sea Foam and has been telling me to run some of it through my truck. Question is,i just put new spark plugs in less then 5,000 miles ago. Will i have to change them if i run sea foam through the booster line and gas tank??
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