Ford 6.0L Power Stroke Diesel :: 2003 - Misses And Runs Rough?
Oct 20, 2011
'03 6.0 Powerstroke. Rough idle AFTER it warms up. Runs fine cold. It seems to studder and miss at mid range acceleration. Egr deleted and new oil cooler installed. New lift pump. Replaced ICP sensor. Have 48.5 volts at the FICM. Replaced the fuel pressure spring to the blue one. All new filters. Does not smoke. Does not throw codes. I need to fix this truck one last time. It has a date with the bottem of a very deep lake! It has been nothing but a pos since it hit the ripe old age of 25k miles!
View 14 Replies
Advertisement
So, after sitting for about 4 weeks, I go to start my 2011 F350, 16,000 miles, with a 6.7. Barely runs, "misses", fuel pouring from the underside of the motor, all over the ground. I figure out pretty quickly, #8 fuel injector was blown out of its hole. Clamp is busted.
Two days later (this morning), dealer calls and says we have all the parts we need to fix your truck, except the clamp. Guy says no ETA on the clamp from Ford. Truck will just sit, for an indefinite period of time. Asked him what they were going to do. He said, wait for the part to show up.
Putting aside the oddity of the clamp breaking, how is it that Ford doesn't have the part and doesn't know when it will? Is this a Ford problem or a lazy dealer? This really won't do. Its racing season and I need my truck!
View 14 Replies
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.
View 14 Replies
I have an 03 F350 with the 6.0L. It has 210,000 miles on it and the injectors are beginning to be suspect. Its very hard to start when its cold, smokes and runs like crap untill it warms up.
I've found a set of injectors out of a 2005 truck with 8000 miles on them. The truck was overboosted and blew a head gasket.
Now finally to my question.....Can the overboost damage the injector? Would it be safe to buy these and install them or rebuild them before install or just leave them alone?
View 14 Replies
My truck runs very rough and lacks power when cold, even during the Texas summer. Once it warms-up, everything is fine. It's almost like turning on a light switch. If it's plugged in for a couple/few hours, it's smooth as soon as it starts. I'm assuming it likes the oil once it reaches a specific temperature. What my problem is?
View 14 Replies
I have my 2002 Ford F250 Powerstroke. 175,000 original miles by me and only me. SCT, MBRP, Howes or Stanandyne almost always. Runs like new. It starts rough if I don't plug it in. Even on 50 degree days. Then it levels off and runs perfectly. If I plug the truck in I can drive off immediately with perfect operation of motor. I just went 1500 miles. Pulling a car hauler with car. NP at all.
New Glow Plugs, GPR "Yes it works", IPR, New Harness, Buzz Test shows it's fine, New #8 injector last year, New O rings HPOP. My buddy who is a PStroke guy said this trucks runs too perfect for it to be injectors. He recommends seals for the injectors. What does this mean. Or what else can it be. Where should I start.
View 9 Replies
I have a 2001 7.3 with 259,000 miles. It does not get too cold here, however over the past few winters when the temp is below 50 at night the first minute or two of running out of the neighborhood is tough going unless I let it heat up. It has been getting worse over the past few years and now if its even 55 or 60 I need to let it heat up. Glow plugs? Injectors?
View 3 Replies
Here's what I'm dealing with. Took the truck on a 1500 mile trip with no issues. Got home and started it the next morning and it started right up. 1/2 mile from home it starts to run rough and wants to die. It does this for a few minutes and then perks back up and runs fine for however long the trip is. It will always re fire and have no issues. Every morning it's the same game as described above. Within 1/2 from home it's doing this. Seems to be fuel delivery related, but why would it start after sitting overnight, and then after its little fit, run without an issue?
No codes in computer.
View 7 Replies
I have a 2001 F350 with the 7.3 standard trans. The previous owner put a toggle switch to control the EBPV as an engine brake, I've never used it. It blows white/blue smoke when cold but has for the last 4 years and doesn't seem any worse now.
Last fall I ran the truck the lowest on fuel that I ever have, the light was on for a long time and I thought I would run out. I made it to the gas station and filled it up then drove home. The next time I drove it I went about 25 miles and it started to buck while going up hill. This got worse and eventually the check engine light came on and it stalled.
It wouldn't start again so I had it towed home. I got it started a couple hours later but it would run really rough and only for a minute or so then stall. It will usually start again once or twice and stall, then it wont start again until it has sat for an hour or so.
I didn't have a code reader at the time so I started reading threads. Here's what I've done to date.
Changed the oil and filter, it was way over do. New fuel filter.
The oil level in the HPOP stays about an inch from the top, I've checked it a few times after its stalled.
Dropped the tank and cleaned the screens in the pick up, no change.
The ICP had oil on it so I replaced it and a new connector, no change.
Changed the CSP with a grey one, no change.
Changed the IPR valve with one from a buddy that was on an engine that was running. The truck ran rough for a min then settled down and ran smooth. I let it idle for 20-25 minutes with no problem so I thought the problem was solved. After sitting for a month or so I fired it up and its back to running rough then stalling.
I bought a Vgate ELM327 connector and downloaded FORScan on my laptop. (I'm still not sure what I'm doing). These are the stored codes P1281, P0475, P1316, P0478, P0470, P1211. I cleared all the codes. I did a buzz test cold and the Injectors all sounded the same.
I monitored the truck while running (rough) the IPR is staying around19.92%, ICP is 701.4psi. After 5 seconds the ICP starts to climb and so does the IPR, at 12 seconds the IPR is 37.11 and ICP is 1835.1 psi the it stalls. The fuel pw,ms is around 2.50-3.0 until before it stalls, then its 1.66. The only codes that come up are P0475, P0470, B1473.
View 14 Replies
2000 F350. Starts great. Idles fine. After it warms up a little, it will run rough and lose power like it is only hitting on a few cylinders. It will eventually stall unless I push the clutch in and bring it back to idle and then it smooths back out. I figured it was starving for fuel but I can rev it with the clutch in with no issue. I ran it up to 2500 rpm and held it there with the clutch in and ran perfect.
I let the clutch out and start rolling....missing again. The check engine light does come on but my scanner says that there are no codes stored. If I idle it, it will smooth out, and the light goes off. All I have done so far was change the fuel filter which was almost plugged shut and the housing was full of rust looking debris which I cleaned out. BINGO! Nope. Same issue.
I am really at a loss as to where to start. I bought this with 120k on it and it now has 170k and I have not had to do anything other than routine maintenance.
View 14 Replies
Took my 2011 F250 in to the dealer where I purchased it concerning intermittent misses on gear changes. The dealer had no history or knowledge of problems with shift flares. I was told they would check it out. Bottom line, their checking it out yielded no results, no action, and no "engagement", pun intended, to resolve a serious concern. How did others resolve the issue when it came up?
View 14 Replies
I have an issue with my 7.3.... the truck will not start if it sits overnight without being plugged in, even in 65 degree weather. It starts and runs with a rough idle for about 10 seconds after its been plugged in for an hour, after the rough idle is gone it runs great .. it will Stat back up as long as the truck is warm (70+).... I've replaced the batteries, glow plugs, starter (it was going bad) and fuel filter. .. also replaced the gpr today. ....
View 14 Replies
I have a 1999 Ford F450 Tow truck with a 7.3 turbo. It loses power and misses when I give it gas but when driving normal speed no problems.
I had a ford technician look at problem with a computer and he said number 8 injector . Today number 8 was changed.
Test drove it same problem. I also changed th fuel filter. And I emptied the tank to make sure No water
View 4 Replies
I have a 2006 F350. It started running rough and white smoke from the exhaust. I did an injector buzz test and found no codes. Cylinder contribution check showed cylinder one was not functioning. I replaced number one injector, cleaned injector cup installed new injector and copper washer. Engine runs the same. If it was a wiring harness issue should that have shown up in the buzz test?
View 8 Replies
I am at a loss on what this could be. For the past 8 - 9 months my truck will randomly miss and if I am going slow enough it will cause the engine to quit but only when it is raining. I sometimes get a service light when it happens but as soon as i turn the key off and back on it goes away. My truck runs perfect otherwise and even when it rains except when it randomly does what I just explained.
This started when I replaced my passenger side valve cover gasket and I also took out my "brain box" (don't remember what it's called) and put it back in (didn't replace it). I did have the up-pipe replaced as well around the same time and put in EGT, boost and trans temp gauges. That's about the only things engine compartment wise that's been done.
I did just take it to a shop to put on a scanner and after his testing it did spit out 1 code. It was the cam position sensor. Can this sensor cause what I have explained? Like I said, this only happens when it rains. Doesn't matter if it's poring or barely sprinkling.
View 7 Replies
My 99 250, 7.3 is having some strange issues as of lately. When I start it in the morning, when the engine has fully cooled down, it starts right up, then it throws the "wait to start light" runs real rough and just shuts off. Run the glow plugs a few times, start it up and it will do the same thing for maximum 30 minutes, then all the sudden I start it and it runs fine. I've replaced the fuel pump, cleaned the fuel bowl, new fuel filter, I just don't know where my problem could be. It doesn't make sense. But once I get it running and it warms up, runs fine all day. Go to bed, wake up, has problems again.
View 14 Replies
I have a 2003 F250 4X4 crew cab 7.3. It was running great at 244,000 miles. The only problem was the HPOP was leaking, I had done the two upper O rings several thousand miles ago. Any ways after changing the HPOP while driving down the road it would miss at times or hiccup (funny it wasn't doing this before) Also it died a couple times, once at a stop light, had to get it towed home another time in stop and go traffic, this time it started with-in 10 min after trying several times. So I decided to change the IPR, still did the same thing. So I decided to change the CMP with negative results. I checked the ICP sensor it looked good no oil leaking or no saturation. So would it be safe to say I may have gotten a bad HPOP. Remember, I had no problems until I replaced the HPOP
View 14 Replies
I've got an 03 f250 superduty and a few weeks ago i was driving home pulled to the side of the road to get a phone call and my truck sounded like it was misfiring and started to shake very rough so i quickly got it home and it barely made it up hills with no power at all, took it to the mechanic and he said it was my wiring harness, so i replaced it and it took weeks to get here and i finally get it in and my truck still seems to be misfiring ad idling very rough, I replaced my oil less then 1000km ago and I've had 2 injectors replaced. I've talked to a few diesel mechs and he recommended to put some hot shots in it.
View 14 Replies
I filled up at the same fuel station I've filled up at for 6 months, never had a problem. I just bought a 6 liter and put some injector cleaner in on the last fill up. Ever since then, it's been running really rough and missing when cold, and even when it's warm if I really lay into it, it'll pop and sputter. The fuel in water lights been on since I bought it. I think I have a bad sensor, because it was running fine until I put that cleaner in. Since its been running rough I put in new fuel filters and drained the fuel water separator, which only had fuel in it. I don't really know what it could be, but I'm 99% sure it's an injector issue since it started only after I put fuel treatment in.
View 8 Replies
I have '03 6.0 when it gets to full temp it will run horrible and eventually stall. It will take a few long cranks to restart. will drive a little bit but will stall again. It will idle all day long even after a stall. IPR @hot idle is 22 and ICP @hot idle is 640. IPR and IPC readings seem to run good throughout the rpm range except for when it dies. Then the IPR is anywhere from 71 to 85. Has new ICP and Pigtail. Runs very good until hot. I am leaning towards HPOP.
View 14 Replies
I had a no-start, replaced standpipes and dummy plugs. Passenger side dummy plug o-ring was shot, some of the others were pretty worn. Polished the spool valves and replaced injector seals. Confidently put it back together and fired it up. Idled sweet, bad low on power, especially at low rpm. FMP was bumping 45 so sent it to ED. It seemed a little better but not fixed. No visible smoke. Engine temp doesn't seem to make a big difference but it may be slightly better warm. Fuel consumption is hovering around 9mpg over the last 150mi. FPW stays around 800us warm/5.8ms cold. I think the low mpg is the excessive throttle needed to pull away from stops and climb hills.
I spent the day checking stuff and found the following.
The only codes are for a couple of glow plugs and a "key in ignition" error. No contribution codes. Monitored (with FORScan) the turbo (MAP, Baro, EBP, VGT), FICM, TPS, ICP/IPR(cold and warm) EGR, vRef, MAF vs TPS, and some other stuff like miss fire count (0), voltages everywhere I could look, and FPW. I saved a dozen files while checking this stuff and can be more specific on the numbers. Fresh fuel filters, No bubble in upper filter housing while cranking. Fuel pressure was 64 at idle, 61 when power braking or revving. No leaks on CAC or exhaust.
Possible culprits : Could I have done something to cause low power when I cleaned up the injectors? I'm sure the orientation of the spools and coils were right but I did "fudge" on the torque for the coil screws. If anything they may be a bit loose as I read a couple of times over tightening would cause problems. I am certain there is no play and a slight amount of load on them. I did clean the tips and bodies on a bench grinder with a gold colored wire wheel, light pressure and just a quick pass cleaned them up. Also, I ohmed the coils while they were on the bench. No shorts or opens except where there was supposed to be opens. All the coils were .5ohm except three read .6 and two read .8. Injector buzz sounds raggedy, not smooth. Any of that a issue?
Cold ICP/IPR is higher than it used to be, at 40 degrees I see 35% and 1300psi but ICP desired is 1250psi. I also noticed monitoring the TPS, rpm desired stays at 0. All three tracks measure position but one shows a constant .25v while the other two vary. Throttle position fault stays at "no" at all times. When it was a warm no-start (at the beginning of all this) I cranked it for maybe a minute total. ICP never went above 300psi so I knew why it wasn't starting. It was cranking normally in the beginning but part way through the second try RPM's went up suddenly as if it got easier to turn. When I started the truck the next day it limped home in this "low power" mode and even though it starts righ up now and idles smooth cold, the power issue remains. I plan to get a better set-up and recheck fuel pressure at WOT tomorrow.
View 14 Replies
