Ford 6.0L Power Stroke Diesel :: 2003 - Misfiring When Warmed Up
Dec 27, 2016
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.
View 3 Replies
Advertisement
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...
View 5 Replies
In the morning, she starts great. Right up. And that's the least time she'll start until tomorrow's morning. Once in a while I'll turn the key and nothing happens, all of my lights are on like normal, but once I turn the key to start, absolutely nothing happens. Next morning, started right up. I can't leave her running everywhere I go. This is my first diesel, I just bought her with 265k miles, looks like she was well taken care of. But she doesn't like to start since the day after I bought her. New alternator because Ford told me, battery light doesn't come on, she still won't start once warm.
View 14 Replies
I have 2005 Ford 6.0 turbo diesel. I replaced high pressure oil pump because it would die once it warmed up. Also replaced high pressure fuel rails and icp solenoid. Engine still dies when ect reaches 204 and eot reaches 235. Why it still dies?
View 3 Replies
I have an 04 ford 6.0. It is an 03 model. It has 165xxx miles. It fires right up cold but, once warmed up it will crank but not even try to start. A little starting fluid and it will fire right up. I sent the FICM in and had it tested and it is good. I put in new 850CCA batteries and a 185 amp alternator so my voltage is good. I changed the fuel filter and the oil/oil filter, synthetic 5w-30. It isn't throwing any codes. I am really hoping it's not the HPOP but, think it's probably that or related to it.
View 14 Replies
Truck is running bad when first cranked in the morning, is bucking and running rough until warmed up, think the oil needs to be changed and which additive is better the archoil or Rev x?
View 14 Replies
I've got an injector #7 misfire, so it looks like I'll be replacing my first stick since the warranty expired.
Does the injector from Ford come with the copper crush washer? Will I need to buy anything else except for the oring kit?
where is injector 7? edit: it looks like number 7 is the farthest back on the passenger side. Great! I get to do the hard side.
AE pics below. I've never understood the Power Balance test, it most always looks the same. Seems to me something should look odd with #7, but I'm just not seeing it. As I shut down each cylinder one at a time, all made the engine run noticeably rougher, except it was only a subtle difference when shutting down #7. So that plus the code pointing at #7 lead me to believe that #7 is my culprit.
View 14 Replies
I have a 2006 F350 6.0L. That is Having trouble starting after it is warmed up. Ive been told multiple things it could be but the one ive been told the most is the Stand pipe or dummy plug in the oil rail having a small leak. Is this correct? Or is there something else i need to Check??
View 8 Replies
2003 with 2005 motor, auto trans. After truck is warmed up and been driven a while I get a vibration/nice when stopped. Sometimes the Vibration changes with the brake peddle application. Is there a ps hose that can go bad internally on these? Anything else to look for. It's easy to hear/feel in the cab but can't hear it under the hood. Changed the ps fluid with no change.
View 14 Replies
2014 F350 6.7... The truck has only 30000 miles on it. I was driving uphill and the engine just quit, but fired up right away after with engine check. On idling run at 500-700 rpm , no power, clicking noise , sometimes shaking. Took to the closest dealer right away, they don't know what is it, but they want to rake of the engine . This truck is not under any warranty. This is my first diesel truck, didn't expect anything like this....
View 4 Replies
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.
View 5 Replies
Newbie hear to the 6.0L's. But I'm learning an awful lot really quick from all of you here. I've read lots of tech stuff on these EGR Coolers, oil coolers, FICM tests. This is what I got happening right now.
2004 F-250 6.0L. Today was 45 degrees in Reno. 5400 ft elevation. Tried to start it without block heater. Would not even crank. It tried to crank but sounded like it locked up on first crank. Tried again, nothing. Same. Tried yet again and finally got to getting the engine to crank, but wouldn't start after about 5 seconds of cranking. Waited a little while not wanting to burn out my FICM, then tried again. Same as previous, would crank but not turnover. Checked batteries. Both were over 12.3 V cold, motor not running. This next time, turned key on and let it sit in ON position for about a minute. Then cranked and it took about 5 seconds and then the motor finally cranked over. Lots of black smoke as usual for a cold start like this. Battery volts after cranking over and running were now both over 13.6 V.
Keep in mind the truck has started better than this before in 15 degree weather just about a month ago.
After it started I noticed what appeared to be oil/coolant residue directly underneath trucks transmission area. It was not tranny, but in that area. I got under the truck and can see this fluid coming from EGR Cooler area.
Now for the smoke. Just stared smoking on start up. White smoke. Then it would disappear as engine warmed up. Now its constant white smoke when warmed up and applying the throttle. Smells like coolant coming out of exhaust. Not diesel.
I parked truck facing downwards on my driveway. Then I checked EGR Valve. When I pulled it it was WET. Not dry. Peeked in EGR Valve hole, didn't see coolant. Just wetness. I did change gasket and rings on it the day before as well.
As for FICM, it reads 47.9 Volts on key turn, 48.1 on cranking and 47.8 running. FICM good by all standard 6.0L literature. Degas bottle passed pressure test holding near 15 PSI for 20 minutes! No oil in degas bottle that I can see.
Truck is stock. Is my egr cooler and oil cooler shot? Would a bad egr cooler or oil cooler cause this awful cold start? When I plug in the block heater, it starts NO PROBLEM, but still white smoke. Also, NO loss of power at any time.
View 6 Replies
Over the past few week my truck has developed a knock once it has fully warmed up. At first I thought it was possibly injector knock and kind of got excited about the prospect of upgrading to larger injectors. Well, my short lived optimism came to an end today once I got ahold of my father's mechanics stethoscope. So today I let it fully warm up and like clock work the knock came back. After going over nearly every inch of the top end, nothing was producing what I was hearing.
So I crawled under the beast and located the source. Right where the bellhousing mates the the engine block is where the knock is definitely loudest. At first I thought it was louder in while in gear but today it didn't matter if it was in gear or not. I removed the bellhousing cover and inspected what I could see of the flexplate. Couldn't see and cracks or breaks but from what I see through google searches is that it cracks behind the spacer. Now my first thought is that it's the flexplate but I'm hoping more experienced people can tell me what they think.
[URL] ....
View 14 Replies
I recently bought an 03 F350. I've noticed on cold starts that it has no power. After about 5 minutes it runs very well. I have not noticed any misfires or smoke and there are no codes thrown. Based on what I have read here, I assumed it was a FICM issue. I just got done testing it and it was at a solid 48v with 1 dip to 46 on engine crank. I'm baffled at this point. The truck literally has no other issues except low power for the first 5 minutes.
View 14 Replies
I have a 2003 with 150k miles. My 6.0 has black smoke and can barely crawl up a hill. Dealership is 30 days out for an appt. Air filter, oil change, alternator, and batteries are new. I removed the EGR valve and cleaned, but the valve seat is not perfect. I can see 20 to 30 mil gap around half of the seat. Is this ok or will that little gap cause this?
Hoses all look good. No alarm lights. I have no diagnostic tool but I can use a meter well. It did have an airbag light but I found the fuse missing and replaced it. The air filter alarm switch fell apart but I bypassed it till I get new part. No alarm lights now.
View 14 Replies
I have a 2003 6.0 when it has having troubles trying to cut out when running low rpms but would throttle out of it then it lost all power cab filled with smoke and died now it does nothing won't even try to turn over everything under the hood is covered in soot I'm ready to pull the cab just wondering if I didn't loose any oil or coolant...
View 6 Replies
I noticed the aftermarket controller in my 03 F350 is not working. I am wondering where the fuse(s) might be located. Under the hood? Are they fuses or relays?
View 2 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
Ive changed all relays underhood cause i could not find info on which relay is which, checked all fuses under dash. Checked to make sure up stream on 4x4 fuse position has power. And i checked for power at 2 wire on transcase no power at 2 wire, i am also finding no power at back of dashswitch.. Looking for a wiring diagram that shows complete esof schematic
View 14 Replies
I have an 03 6.0 Power stroke. My problem all started the other day when I started to occasionally not get any boost on acceleration and lose of power and a lot of vibration like it's about to cut out but it got worse now today I drove it about 5 miles into town when I got to town I noticed a rough idle I got gas in a gas can not in the truck. I got back in to leave and I had absolutely no power at all the truck stalled out and it was very hard to start finally got it started and it runs really rough almost like it's going to shut off.
So when I started driving I would only make it about a mile or so with out it chocking out and having to let it site for a minute or two and start it back up and go another mile or 2 and have it do the same thing all the way home all the time I have vary little boost if any at all except for when I first pull out now oil pressure is good and engine never over heated some of the codes I have is an EGR code and a contribution balance code for several cylinders I was thinking possibly a maf sensor or a clogged egr not working right.
View 14 Replies
I have a 2003 Ford F-350 super duty 6.0. A few weeks ago it starting loosing power, it wouldn't even go up to 15 mph. It now won't even move. There is 0 power. When I press the gas the motor bogs down to a very low idle and wants to die. I also had recent trouble with it starting. It would wind up to a very very low idle and about a minute later it would crank up to full idle. I changed the fuel filters (on top of the engine and under the cab) and also changed the fuel pump under the cab. After that I still have no power when pressing the gas it will still act like it wants to die.
View 14 Replies
