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.
View 9 RepliesI 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?
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?
View 1 Replies1999 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.
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 ??
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?
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%.
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.
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.
I was driving down the highway and the truck was in overdrive and under a load passing at about 20lbs boost and all of the sudden I lost all power, felt truck shake a little. The tow/haul light is flashing and got only one code P0730. The truck won't go into gear in either forward or reverse now, had it towed home and put a pressure gauge on it and found about 100psi at idle In neutral, in reverse and forward I got strange readings the pressure goes way up momentarily then down to 100psi, and increments back up to over 500 psi and seems to stay there but neither forward or reverse engage. I have no clue what could be wrong at this point. I am attaching a video .....
View 14 Replies05 5.4 F250 4x4. Keep getting those codes. Can't find any vacuum leaks. swapped rear O2 sensors. Fuel filter twice in last 11k miles last time was 1k ago. Will the 430 code cause the lean codes from a bad cat? I've been getting the 430 code for at least 4 mo's.
View 6 RepliesMy truck threw a check engine yesterday, P1151 and P1152. What could be the problem? 04 f350 with 5.4 with 142,xxx on her
View 14 RepliesWhat would be causing my left and right bank lean codes? Truck still seems to run fine. I have also been getting number 6 misfire. all within the past week. I know Its due for a tune up but would a simple tune up fix these codes. Also besides plugs and primary fluids what else should I be changing. I don't want to be getting to involved just the main stuff.
View 5 RepliesGetting 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.
View 5 RepliesI keep getting a lean bank code. I have cleaned tb and replaced one of the rubber lines. It only comes on when I take a good ride with the truck. Not sure what else it could be. I'm thinking O2 sensor maybe.
2008 F-350 5.4 3V. 65k miles
I've changed my knock sensor, my o2 sensor, fuel filter, air filter, alternator, and cut out my cat. Still can't figure out why my truck has no power?
View 7 RepliesI have an early 1997 F350 XL 2 wheel drive with a knapheide 8ft utility bed. Both front tires lean outward at the top.. I have read posts about the top leaning in but this one is leaning out. The front is set up with the twin I beams and just has leaf springs no coils. Couple of guys have said its normal but i would think not because when you jack up the front end they straighten out. I have tried jacking it up and grabbing the wheel at 12 and 6 and tried rocking it to see where the movement is but its pretty solid, it takes the weight of the truck to make them lean. What it could be? Indiana truck, i bought it with over 100k miles so its possible it has had a plow at one time but if so all the evidence of that has been removed.
View 1 Replies1999 f-250 super duty... okay, here is what i have going on. basically no power to the fuel pump. For the last 2 weeks the fuel pump relay and 1 of the relays behind the radio (next to the blue relay) would chatter and the truck would die. Wait about 5 minutes and turn the key on and if the chatter was gone then it would fire up and run... So NOW no chatter on either relay and not cranking up. - motor turns over just fine- just no power to fuel pump. So I changed out the relay- both behind the radio and the one under the hood. still chatters and no start. i have checked the Inertia switch and 12 volts there... Here is my question, when i turn the ignition on, i have no power to the base of the Fuel Pump Relay.... Where does the power come from to power the relay???
View 13 RepliesI have a 1999 f350 with the 5.4l engine. I have no power to the fuel pump or fuel pump relay. I have battery voltage to the pcm relay. I don't know what else to test because I don't have a proper wiring diagram.
View 2 RepliesI've got a 08 f250 ext cab long box with the 5.4 gas. I know I know 3/4 ton gas. Trucks got NO power at all loaded and unloaded and really bad fuel mileage. Driving like a grandpa in town I'm getting 7mpg on the hwy unloaded I get 9 or 10mpg loaded on the hwy the trucks working way harder than it should and getting 6mpg.... I'm wanting to swap the 5 4 for a 6.0. Reason I saw 6.0 is my buddy's done egr delete. Bulletproof oil cooler head studs and a edge with attitude chip and has great power and reasonable fuel mileage. How hard is it going to be swapping the motors.
View 10 RepliesI 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.