Ford Super Duty (1999-2016) :: Truck Only Runs With Lower Fuel Pressure
May 21, 2017
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 have a 2001 F-250 XLT 4x4 with V10. Truck will not start. No fuel pressure. My Haynes manual does not show ignition or fuel delivery wiring. I have found the relay box behind the radio/dash. I need a wiring diagram and info on which relay is the fuel pump relay. Want to know so I can jump relay to see if fuel pump is okay.
Truck had sat for a few weeks being ran very little, so had to jump start yesterday. Ran for about 15 min, the shut off, re-started and ran for 30 min. Truck sat for about 1.5 hours then would not start. Charged battery overnight and it is 100%.
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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 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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I had my fuel filters changed at the dealership today on my '15, and then I bought fuel and headed home (70 miles). About half way home I got a "Low Fuel Pressure" message and a little while after that "Reduced Engine Power" along with the check engine light.
I pulled over to see if they did something like leave the drain open, thinking it might be sucking air. Of course it was dark and I could not see anything. However I did hear a buzzing sound and could feel a vibration when I touched the fuel line going into the top of engine filter.
While it is possible I got bad fuel, I suspect they did something wrong installing the filters. Even after cycling the fuel pump multiple times they had a hard time getting it started afterwards; I think they finally disconnected the top fuel line to bleed the air out.
I continued home and made it, but not sure what to do now; its 70 miles back to the dealer.
What is the most likely problem? Improper fuel filter installation or bad fuel?
Should I pull the filters in the morning see if there is something obvious like an out-of-place gasket? If so, top or bottom filter?
Is this a tow truck affair or should I drive 70 miles back to the dealer?
What the heck is the buzzing sound?
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I have a 2004 SD with 5.4 that is running pretty rough both at idle and driving. Truck shakes a lot at lower rpms. I have a scan tool and had a misfire on cylinder 4 so I replaced the coil and the plug. Also replaced the idle air control valve. Plan on replacing O2 B1 S2. (One of my codes) even after replacing the coil and plug I'm still getting misfire detected from cylinder 4??? Other codes I had were misfire detected on he first 1000 revolutions. That hasn't come back though.
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What is the proper tire pressure for these trucks (F250)?
Sidewall says max is 80 PSI.
Door jam says 71 PSI.
This is coming from a guy who has traditionally driven passenger cars and trucks. I've never even gotten CLOSE to advertised max PSI ratings. 71 seems awful close to max PSI.
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So I went to start the truck this morning around 8:00 and it was 7 degrees outside, when the truck started the oil light came on and oil gauge was on low? So I turned it off right away. few hours later I tried it again and still nothing I thought maybe the oil was frozen. After I started the truck the oil was higher on the dipstick so I am assuming the oil pump is functional. What could be causing this? Could it be the the gauge is not working? The truck is a 2000 F-350 V-8 5.4 gas. I'm hoping it is something simple I am suppose to work this afternoon
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Changing a fuel pressure regulator on one of these? I'm having an issue with it running really lean, like laying down with no power lean.I put the pressure gauge on it and I'm running an even 30 pounds at the rail. Changed the filter in hopes, but no change. Just changed the O2 sensors and they were both white.
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On my 05 Super Duty, the gauge light for the fuel and oil pressure are out. The needles are still illuminated red but the backlight for the gauges are dark. Are these replaceable bulbs or are they a circuit board diode or something that can't be easily replaced?
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2003 F250SD 5.4 4x4... When I recently heard a growling coming from my front end. I read some great posts on here about the whole front end tear down. Replaced all my ball joints, universals, wheel bearing hub units, locking hubs.....
So yesterday i came home from work, about 30 minutes later i hit the key on the truck and it wouldn't start. Kinda sounded like it wanted to but was starving for fuel. SO i grabbed the fuel pressure gauge and did a quick check......and No fuel pressure at all. Checked the fuse, Couldn't find a Relay in the fuse panel (Is there one for the fuel pump??). Anyway 4 hrs later the trucks starts right up like nothing is wrong.
Go figure, I'm 2 days away from my last payment ...now everything has to be going wrong.... Do these fuel pumps act up like that ??
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5.4L... So like many this winter, I had an intermittent crank no start issue. Thought it to be fuel related, based on low fuel pressure readings.
Now all new - battery, iac, cam sensor, fuel pump, fuel filter, fuel pressure regulator, air filter. Cleaned maf, temp sensor and throttle body. Engine starts, but I don't know if the problem is solved.
Fuel pressure is 40 with key on, falls to 35 on start-up, (which seems ok) but then after a few seconds, the pressure drops to 26 where it seems to want to stay. Hitting throttle hard makes it fall to about 20. I can't find any leaks in the fuel lines. Truck seems to run fine while driving.
To me, this doesn't seem good. Engine is not throwing any codes, but the ST fuel trim is running 0 to +3, and as high as +9 on occasion.
Does the consistent drop to 26 sound normal? Should I dig more into it, or just forget about it since truck seems to be running fine?
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2000 f250 V10 ...
Problem: More often than not when the key is turned to run (?), prior to engaging the starter, the fuel pump does not turn on for its 5 seconds. I have installed a fuel pressure tester gauge to watch the fuel line pressure. It was a little shaky to diagnose because if the line had pressure/fuel from the previous run it will start and run a short time and then die from lack of fuel. Unless the fuel pump activates when the key is turned to run, prior to full start, then there will be no fuel coming from the pump. No start. If you work the key to run a few times until the pump engages its good to go. The truck has never died while driving, once it gets that initial pump activation it runs good until the next start up cycle. When the pump does work it builds up to good "book" pressure and holds it at 39 when the engine is shut off.
We have put off changing the fuel pump for obvious reasons but can not see how it could be the problem since it has never quit once after we get it started. Are we wrong? We know the fuel shut off is on as it will run. We have changed the key lock tumblers, the ignition switch and the fuel pump relay. (behind the radio). Next up is to re-seat all the fuses and relays in the main fuse panel box under the hood. I just read that today on FTE. Is there a test we can do or some engine codes we need to look for? This problem is getting old fast.
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I have a 2010 f250 6.4 About two months ago the truck just quite on me. I am a farmer in south jersey and have a decent background in diesel motors. First thing that came to mind was fuel. I assumed I was having a fuel issue (clogged filters, failed pump, etc.) truck only had 45,000 miles on it so I took it to my local dealership for what I assumed would be a warranty job. I dealer service all my trucks while under warranty. Long story short I was told it was a fuel contamination issue which scared the walls of the hpfp throwing metal pieces into the injectors, fouling them.
I would need all new injectors, fuel rails etc. as well as new filter housings, fuel tank cleaning, etc. I had receipts for every drop of fuel put in the vehicle and fought all the way to through the dealership to Ford who sent out a rep and who denied the warranty work. Fortunately my insurance company covered the ordeal and all repairs were completed. I got the truck back and 2 weeks later the truck died on me again. I called the dealership back who supposedly warranted the repairs but there first words were there is no way it is their problem, they would look at it but I have to consent that if they find it is contamination again I am responsible for the repairs which we all know just to diagnose they have to remove the cab etc.
I of course lost my mind and told them this is there issue and there is no way in hell I am that unlucky that I received 2 bad tanks of fuel from 2 different high volume highway side fuel stations in the same 2 months. it is obvious they missed something or there is another issue that was not addressed. They claim there is no way they missed something. I am at a standstill.
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I had a can of fuel at home that had been siting around a while but I put it in my 02 F350 with the 7.3. hind site being 20/20 I shouldn't have done that. The truck only made it about 2 miles then started chugging and eventually quit. So I pulled the truck home and this is what I have done so far. I assumed that I had bad fuel so I started with a new fuel filter. I did notice that the fuel in the bowl was a milky white color. Not sure what that means. But the new filter did not work as the truck will not start. So after reading some other posts I decided to drop the fuel tank and clean everything.
I did that including cleaning out the 2 screens in the fuel pick up. After re installing the tank I put new clean fuel in the tank and primed the truck. But before starting it I drained the first amount of fuel out of the filter bowl just to make sure I got all of the bad fuel out of the lines. So after doing this I put a new filter in and primed the motor again. I appear to be getting good fuel pressure and the fuel looks very clean now at the bowl. But the truck does not even attempt to start. It turns over just fine but will not start. Some advice I can get before I have it towed to a shop. Also, the truck currently has 305,000 on it and has run great up till now.
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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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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 need to do both lower ball joints. is there a write up or process to do it? do I have to remove the whole hub assembly/knuckle thing or can I do it with all that stuff in place?
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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 have replaced my ball joints and now putting everything back together. I am having trouble tightening the nut on the lower ball joint, the joint turns with the nut as soon as it starts to get tight.
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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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