Ford 6.0L Power Stroke Diesel :: 2003 - Hard To Start / Misfiring At Around 30% Throttle Driving
Oct 15, 2016
03 6.0 with 90k miles. New heads, all orings , stand pipes, injectors , glow plugs, egr delete , oil cooler and studs . Has sct livewire. Just took the truck to the shop for a hard start issue and misfiring at around 30% throttle driving. It would fire up great in the mornings with some white/blue smoke till warm. But after it was warmed up you shut it off it would fire right back up but very slow to reach proper idle.
But if it set for about an hour it would crank great start but same lazy idle up but now it wouldn't get over 300 rpm before it would die. And do this for 5 or so more times before finally idling up. Then runs pretty good other than the misfire. So he said it's either the hpop ipr or icp. I had him replace all 3 with motorcraft parts. Still the same issue ! Return the truck to stock tune and it doesn't have any power . My pockets are only so deep...
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Fuel injectors do this? They are off a 2006 Ford F350 dually with the 6.0 diesel motor! Have replaced all 8 fuel injectors got back drove for 200miles and fuel injectors 4 and 8 were throwing codes changed them out and high pressure oil pump oil coolant deleted egr valve changed the ipr valve feed tubes to the oil rails. replaced the FICM. Yet again drove for 2 days about 200 miles again and shut down (stalled) misfiring hard start. and now fuel injector 4 is throwing codes again. Have not drove it since we got it home from the last stall out which was a few feet from our drive way and we towed it home.
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2003 Excursiom 4x4 Limited
My first Diesel. Runs and drives great. Torque Pro app only showed coolant temp at 188. Would not show oil temp. Hard to cold start. New injectors. Has a programmer. He is asking 12K. It has 209K miles.
It belongs to a friend of mine and he rarely drives it. It stays under a cover most of the time.
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Truck has performed flawlessly during that time period. Early build 2003 CC SB 4wd King Ranch truck 94,000 miles I purchased new in 2003. Good batteries. Bone stock except for superchips tune.
First sign of trouble: Two weeks ago CEL came on, P2285 Injector Control Pressure Circuit Low, as soon as truck was started after sitting unused for about a month. Bought new sensor, haven't installed it yet (early model sensor located under turbo on rear of engine and a real pain to change). Truck still started fine and ran fine. Dreading the ICP sensor install, I continued to drive the truck. Drove truck 5 miles to get tractor fuel. Got fuel, started truck and drove away. Got 200ft and truck died. I changed secondary filter under hood, turned key on and let pump cycle about 4 times. Truck started. Cleared codes. No longer have CEL. Drove 5 miles home, shut truck off and no start.
Troubleshooting: Changed primary filter under truck. Really cruddy (probably 80,000 mi on it). I cleaned inside filter housing thoroughly. I had to cycle pump KOEO about 6 times before it started. Shut off and immediately tried to start. No start. Ran pump KOEO about 30 seconds. Started. Shut off and same result. I then drove truck 4 miles driving both normal and WOT. No problems, no smoke, no CEL, ran perfectly normal. Shut off, no start until cycling pump KOEO for about 30 seconds. No codes set.
I then removed cap from secondary filter and checked for trash. Fuel and bowl were clean. I did notice fuel drained completely from bowl in about 5 minutes. I reinstalled filter and put pressure gauge on housing.
Fuel pressure readings: KOEO 55psi after about 3 seconds. Engine running 55psi. Turn key off and pressure instantly drops to 25psi, then bleeds off to zero over about a 3 minute time period. Does this seem normal?
Questions: Could the clogged fuel filters cause the p2285 code to set? Could the HPOP system have developed a leak and cause these symptoms?
Could an injector leak cause these symptoms and engine still run ok?
Action Plan: Install new ICP sensor. Do bubble test to check for injector compression leak. Install Blue Spring mod. Waiting on parts. Possibly buy scanner which will read HPOP output etc. Any recommendations here?
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I have had my truck for about 4 years bought it used. I've replaced the motor due to #1 cylinder blowing up. So after I replaced the motor, it wouldn't start. Replaced O rings on HPOP (High Pressure Oil Pump) and started. When moving back to Colorado where I am stationed. It started getting harder and harder to start.
Then it got to the point where it wouldn't start so I would have to wait until I could start it or use a shot of starting fluid and yes I hate that. But I don't have a choice. I've bought new O rings replaced them and my IPR with upgraded screen. It fixed it for a week then the hard start came back. Tried unplugging ICP Sensor still hard start problem. ICP was reading 85%. When the truck is cold it fires right up no problems till it gets hot! Then driving down the high and hitting an off ramp it will shut off. When I try revers it will also shut off. The truck only has 111,252 miles.
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My '03 6.0 is hard to start and runs rough when cold. Not just cold outside temps, but engine not up to temp. Starts and runs like a champ once it's up to temp. It was doing this when I got it, but it's getting worse.
From what I've read the common culprits are:
1 - failed solder joints on FICM power supply board
2 - bad power supply side of the FICM
3 - updated flash needed for FICM
4 - injector stiction
5 - leaky O-rings at high pressure oil rail to injectors
I have read up on how to run the voltage test on the FICM with a multimeter.
Seems like I would have to go to a dealer to have the software version for the FICM checked.
I am 100% competent to do the tests and/or repairs myself, but since I recently moved in with my fiance in a condo and my tools are in storage, I will have to do it at a friend's house. That being the case, I want to know what all of the common things are that I may need to check for so I am prepared. So, I wanted to see if there were any other common causes of this issue.
I plan to test the FICM voltage and give FICMRepair.com some business if that's the problem. And if that's not the problem (or maybe even if it is) I will get the injector seal kits and replace all of the injector seals as well as disassembling and cleaning the spool valves in the solenoids. I will also change oil and fuel filters with Motorcraft parts and Rotella synthetic oil while I'm in there.
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2000 powerstroke 4r100 transmission. It has 155k just had it rebuilt and the shop is having a night as am I. It was shifting hard and the o/d off light would start flashing after you drove it a while. Its still doing the same thing and the shop checked the whole wiring harness and replaced the accumulator twice believing they got a bad re-manufactured one. The only code I can pull is a 605 pcm read only memory error. Could the cause be a bad pcm? The shop doesn't seem to have a clue at this point and I'm out 2500. IV taken it back twice now and Iv driven it a total of 35 miles since the rebuild...
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I have an '03 that misfires. The FICM was replaced around a year ago. FICM volts are at a steady 48. I recently change oil and used a Ford oil filter and cap with new o-ring. I also had the starter changed recently. It now spins over so fast, it reminds me of a gas engine without spark plugs! It starts up every time with no trouble, has plenty of acceleration, and seems to run great, except for the misfiring. It seems to misfire worse when warmed up.
I added some good diesel additive to the fuel, hoping that may work, but it did not. I've been doing some reading in different places and am thinking of disconnecting the ICP sensor and see if it works. I also am considering trying some RevX, or similar stiction additive, but from what I've read, stiction is a cold start and chugging problem, of which I have neither. I have a ScanGuageII with many of the X gauges programmed in, but I am not quite sure what direction I should go.
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I have a strange issue and it happens very sporadic. Sometime it occurs at startup, sometimes while driving. Not sure whether it is limp mode, but I have no throttle. It starts fine, idles, but no throttle. Like I said, sometimes it happens while driving and I have to pull over and shut it down and restart. Mods are few, it has an airaid air filter and I had the turbo rebuilt and egr delete both completed in May. FICM was rebuilt by ficmrepair.com a couple years ago. It does seem to happen more often when it is raining or with a heavy dew after sitting for many hours. 128k.
I adjusted the pedals all the way out and back in and it stopped for almost 5 weeks, but it has been pretty dry here in SW Ohio. then it got really foggy one day and rained the next and it has started again. Could it be that the EGR pigtail is getting moisture. It does not throw a CEL and my scan gauge II shows no codes. I did run a dose of hotshot's secret thru the fuel back in may, ran a couple tanks of fuel, then changed the filters with OEM. I have had this truck for almost 3 years, but still a newbie when it comes to diesels.
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2004 F250 Powerstroke Diesel 6.0L ... 90,xxx miles
Symptoms : Within the past 10,000 miles the truck has begun exhibiting the following problems, sometimes in conjunction with one another and sometimes just independently of one another:Stalling on the road at low speed / low engine RPM.
Throttle pedal becomes completely unresponsive. Stabbing the throttle pedal repeatedly sometimes causes it to return to operation. Sometimes the engine must be shut off and re-started to return throttle pedal to operation.
Rough, surging, stumbling idle at rest. Will crank but not fire occasionally. Problem has become worse as of late. Repeated attempts at starting the engine usually result in success after much, much retrying.
Work Done : Local Ford Diesel technician replaced the EBP sensor, replaced the EGR valve and re-flashed computer with latest software -- all under warranty. Problems still persist.
Peculiarities : We have tried driving the truck with the EGR valve disconnected and with it connected, both at the technician's request.
With the EGR valve disconnected the truck usually starts fine but still stalls out at low RPM / low speed. Fuel economy is also cut by nearly 50% with the EGR valve disconnected. Really couldn't afford to keep driving the truck like this.
Technician speculated that if the truck continued to die with the EGR valve unplugged, it meant that the computer or fuel pump might be bad. ????
It also seems that the stalling problem manifests after the truck has been driven at highway speeds (65-70mph) for at least a period of 20-30 minutes. Stalling usually happens as soon as we make an exit off of the highway and begin to slow down to make exit. As in foot off the throttle pedal. Engine RPM drops then stumbles then stalls.
I wonder if this is a problem with the HPOP or ICP system.
Specifically I wonder if this is a cracked quick release fitting that allows oil pressure to fall after the engine heats up and oil viscosity thins out with the heat. Once the engine cools down sufficiently to thicken the oil, the HPOP finally gets enough oil pressure to allow the engine to fire up again.
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2003 f250 6.0.... recently did oil cooler,hpop,ipr,icp,fuel pump,egr valve, rebuilt the turbo.... when around 35mph truck seems sluggish and doesnt seem to pick up quick untill i floor it an then hauls butt.. vgt reading at idle is 62% and when floored around 30 to 35%.. fuel pressure is 63psi.. ipr is around 60 to 70% when floored and around 25% at idle. Hpop reading when floored is 3000 to 4000psi and idle is 624psi....
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I have a 03 6.0. I just had all the injectors changed a new fuel pump, spring in the regulator and fuel filters ouch. The truck runs great but I get a puff of black smoke if I get on the throttle going down the road it seem to clear up as soon as the turbo spools up. I that ok or do I need to take it back to the dealer?
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Don't know where to start so I'll ramble!
2005 f350 with the 6.0. Crew Cab, 8' box, 4x4 with DRW. I use it only take the boat to the launch 5 minutes away once in a while and to pull car trailers every other week. Majority of driving is on the highway and average trip is about 300 miles. Low power and now no start.
No codes. I do have a scan Gauge and can provide data.
Was running this week, but has had a lack of power for some time. I had put 2 new injectors in last summer. Also updated dummy and stand pipes. Blue spring. Also new IPR at the time.
Ficm board was replaced in March.
New injector harness last year. New Glow plug harness last year.
Coolant level is fine and none being lost.
CAC hoses appear fine, no cracks.
No boost. But newer MAP sensor, hose not cracked or plugged and nipple on intake is clear. Put the MAP sensor last year and it didn't make a difference.
Turbo was rebuilt 2 years ago.
IPR has to hit close to 80 before boost hits 12-15. But it takes a while to get there.
Now won't start.
Yesterday am it was about 30 farenheit and no start. Last year would start no problem.
Batteries are fine. tested.
Engine fires within 3 seconds, but doesn't want to run.
ICP is above 500. climbs as I turn over.
Fires only in first few seconds and then nothing while I keep cranking it. it is cranking fast enough though.
Now...I see IPR will hit 84.7% and then 14.8%. Not good!
When running it sits in between.
FICm voltage is 48.5 key one and 47.5 when cranking.
Wondering if possibly IPR screen is plugged? Or would CKS or CPS cause issues? I recall reading about pulling one of them and cleaning rust off of it? Also...should mention, no EGR reading on scan gauge..never was either. I had checked and cleaned egr valve before. it was clean when I pulled it and not sticking.
Intake had been cleaned 2years ago. Also, on occasion, while pulling up hill, I would get power! Black smoke and it would race up a hill like it's supposed. Then it would go back to no power.
Also...if I pull the MAP hose from the intake nipple, should I feel suction from the intake? There doesn't appear to be any air coming or going from the nipple.
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I removed all 8 injectors because my truck felt like it had a dead cylinder one morning after I did oil change and filter and fuel filters. Truck ran great the day of the fluid change. The next morning however truck was hard to start no power at all nothing. Felt like a dead cylinder so removed all 8 injectors and ohm them all ohm at 0.4 to 0.5 except number 4 injector it ohm at 0.4 and 0.7 that's not in spec right or am I wrong? Do I need a new solenoid? Keep in mind tho number 5 and 8 injectors had contribution codes but they ohm good. So I'm going to tear the injectors apart and see what's what. But my question is do I need to replace number 4 injector solenoid?
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I bought my 04 6.0 from my parents a few years back and had it gone through as soon as I bought it. I got it studded, a new hpop, new oil cooler, 8 new Alliant injectors, and an sct livewire. A few months later my oil temp kept getting high and eventually it caused an injector to go out. Took it back to the guy who originally did the work and he warrantied it.
He said the oil cooler got clogged up on the coolant side. Replaced an injector and the oil cooler and it ran for another couple months before doing the same thing again. Had the oil cooler and injector replaced again and it ran fine until the number 7 injector went out and I had to replace it myself since the guy who was doing the work on my truck decided to pack up his shop and leave basically overnight.
When I got under the valve cover I noticed that the number 7 injector pigtail was different colors than the other injectors so I'm not sure what kind of work had been done to it after all, if he'd been mixing injectors or what, all I know is what he told me he had done. The truck currently has 157k on it. whenever I go to start it my injection oil pressure spikes to anywhere from 1600-1800 and the truck attempts to run but then the truck falls on it's face and the injection pressure will not get above 350-400 for about 10 to 20 seconds of cranking.
Then the oil pressure hand on my dash moves and the injection pressure goes up again and the truck cranks. After the truck is running it has a miss that most of the time goes away as the truck warms up. Im starting to believe that maybe the hoop is going out again but I'm unsure. I'm a heavy diesel mechanic so the huei injection system isn't my forte, but I do have access to just about any tool needed.
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I have a 2006 f250 with a 6.0 and I am having some issues with a hesitation and lose of power. The hesitation is worse when under load and other times is not so bad. Also it is non existent at higher RPMs (2500 and up). I changed the egr valve 2 months ago and it seemed to fix the issue (95%) but now it is running bad again. I used Hot Shot oil additive 2,500 miles ago and I changed the fuel filters and changed to 5w 40 Rotella synthetic oil, nothing has changed. I had the FICM changed a year ago with new software updates, still didn't fix it 100%.
Now I am having a "hard" start issue. It takes a bit for the truck to turn over. My batteries are 12 months old and I just replaced the alternator so I am not sure how to proceed.
I did just buy a Scangauge II and I am still figuring out how to use it. It says there is no codes.
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(2000 F-350, 7.3L, 205k miles) Over this weekend, I noticed while driving mostly in the lower gears, that there was a slight hesitation with the throttle pedal depressed about half way or less. Seem to get worse as the day went by, but no lights or anything came on. Changed the fuel filter and added a fuel injection cleaner to the tank. Checked the oil and it was low, so I filled it to the correct amount.
Drove it around the next day, and it seemed to be good, until it warmed up some, and continued to hesitate. The hesitation seems as if it's not getting constant fuel, and the truck jerks a little. Once you get up to over 2000 rpms, it goes away. Looking up other reviews on similar issues, most have pointed to the throttle pedal sensor and just changed out the pedal assembly. Before I take it that far, I wanted to see what was the corrective action.
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I'm new to diesels. I just bought a 2004 F250 with the 6.0 V8. I have the high and low circuit, contribution codes on cylinders 4 and 8. I've only had the truck for a few days but I've been reading a ton. The symptoms are hard start, rough idle/shaking, no power when cold. When it heats up and I'm over 2000 RPM it seems to be just fine. Even when hot and below 2000 RPM it does ok. I've check the FICM. It reads 48V with key on and 48V running. My plan is to do the following:
Change the Fuel Filters
Change the oil filter
Change Air Filter
Change oil with 5-W30 synth and I have both Hot Shot/Rev-X
If that doesn't work, I'll replace the two injectors. How does that sound.
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The last couple days the truck has been a hard start in the morning. about 28 deg F. I thought the glow plugs were getting weak or a couple of them were out.
Hooked up my AE and pulled codes, one of them was P0261 # 1 inj. Truck is fully warmed up and is running fine. Did a koer glow plug test and it came back ok. Power balance looks good now.
Probably looked different when I finally got it started this morning. Took 3 cranks to get her going and it sounded like crap till it got a bit warmer.
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Don't drive the truck but once a week but since its gotten colder here than usual is been harder to start when cold. Of-course I go thru the glow plug wait and then it kinda stumbles when its about to start. I do it again and most of the time is starts but seems rough for a few seconds. Once the truck is warm, no more problems starting.
I'm wondering if I have a glow plug gone bad and that cylinder is not warming up for me. Today I plugged in the block heater for maybe 2 hours and it started first time. Also, if just leave the block heater plugged in for long periods of time.. would it get to hot?? and wonder how expensive that is, most heater are costly to run. I have a timer but just wondering.
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I just bought an early 04 (01/04) and it starts hard when it's cold. It starts just fine when it's warm. It idles a little rough it seems and it's putting out white smoke, but not too thick. There are no codes on the truck.
I performed the "bubble test" and got no bubbles at all. I have found that it is common for oil rail o rings and dummy plugs go bad and I'm being told that is what the problem is.
Could the oil rail seals be the problem? It makes sense to me only because there are no codes and I feel anything else would have thrown a code.
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