Ford 6.0L Power Stroke Diesel :: High Rev At Startup - Over Runs Weird When Cold
Apr 30, 2017
I have a 2003 f350 6.0 and did head studs with the egr delete and Warren diesel Injectors 155cc. I have both warrens tunning and loney wild tunes.
In all the tunes when i first start the truck up after sitting for a while it will rev real high. Like when i was a kid and tried to impress someone and catch the motor as soon as it fired up and rev it real quick. I mean it sounds cool but i don't want it to do it for obvious reasons. It also gets out of control when you are driving it down the road until its warmed up. If you just try and drive it normal it will start to take off once it gets around 1500 rpms unless you really feather the peddle. Its almost as if its getting to much fuel but it does it with both tunes.
In the tow mode the truck tows like crap. I can literally have the peddle to the floor and it struggles to move a 10k car trailer. I really just wanted a more fuel efficient truck that had a little pep. Now i wished i had left it stock with the new studs.
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2006 F450 6.0 that I've owned since new. It has had 2 injectors replaced previously, EGR cooler with BPD, and a few other problem parts. As it is getting older, I have recently noticed it runs like absolute dog crap when it is cold. It can't even reasonably accelerate onto the hwy when cold. Once it is up to operating temp, it runs better. It still does not pull like it did when it was new and under 50k miles...but it is at least driveable once warm. I need to do some heavy trailer towing soon and need to get this thing back to accelerating good. What should I be looking at first for the horrible running condition when cold?
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I've got a cold start problem. Turn it on, wait until glow plug light goes off, hit the starter and it fires right up. It acts like it runs out of fuel and dies. Hit the starter and it fires up and dies again. Third time it stays running. It's not a long crank either. 1-2 seconds at most. Fuel pressure is 59, HPOP immediately goes 1000+, everything looks good. It will start fine the rest of the day until it sits overnight. This is an early 04.
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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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My 2007 6.0 has a really rough (almost 'miss') during cold start up. After 5 seconds or so, it smooths back out and sounds normal. Until gauge reaches normal operating temp - there is a surge/lack of power during light acceleration. I also hear a frequent compressor coming on and running for a while which I am contributing to a possible vacuum leak. Maintenance is always done on time and I've already had a few costly repairs (both internally as well as externally) on the engine. I usually always wait for the glow-plug indicator to turn off before cranking the engine and let it idle for 5-10 minutes prior to driving it. Once the vehicle climbs to normal temp. everything seems to be fine but the compressor still comes back on every so often.IS it worth simply replacing the vacuum canister located behind the passenger side battery - or should I find someone to hook up a diagnostic unit first?
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05, 170k miles. Studded and egr delete but I don't have paperwork on either. Got a pretty good deal on the truck but I have a few questions..
It runs and starts great, warm and cold, with only a little blue smoke on cold startup. but every now and then when idling (say at a stoplight) the engine gets noticeably rougher, not terrible. No smoke. Goes away after 5-10 seconds.
When I remove the oil cap, there is a "puffing" blow by, not constant, and its not enough to blow the cap off if I set it on backwards. Just puffing.
This may be related, but I pulled the starter wire off the drivers side and touched it to the battery to hear how it cranks, and there is a noticeable blip in the cranking, its not 100% smooth.
Don't think I am losing any coolant. Runs great, getting 15MPG. No CEL. I went and had a relative comp. check done, cylinder 7 is the problem. We both are leaning toward there being a valve problem So I pulled the valve cover, now I have a few questions.
1. When I crank the engine over without starting, I can hear a "pfft....pfft....pfft" chug of air every revolution. I pulled the cover to see if I had a obvious rocker problem, but can't see anything because the oil rail is in the way. I'm guessing this air puff is sign of a valve problem?
2. When the truck is running, there is a small, steady stream of oil running down the rail and dripping onto the valve cover mating surface of the head, I think it was at every injector, definitely 2 of them. Was getting dark, so hard to see. Is this normal, or do I have a leak? Truck has updated dummy plugs.
My next step is probably going to be pull the rail, see if there is a obvious problem, then pull the head. And tips for me? Planning on having the HVAC evacuated then pulling the airbox.
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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?
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I'm in the middle of an extended coolant flush and switch over to ELC. As of recently, I have noticed white smoke at startup and driving while cold and warming up. (Even at times accelerating when half warmed up ~170*). At first I attributed it to suction, so last night I changed the oil with T6 along with a new OEM filter.
After I got done with the oil, I pulled my EGR valve when the engine was hot. Is this simply goey due to warmth, or do you suspect EGR cooler leaking? I didn't take pictures of the manifold, but the lower chamber was hard and dry, while the middle section seemed to be "goey". EGR Cooler or something else???
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2004 f350 4x4 sc dually 130K mi. Cranked truck this morning @ 18*F. Truck not plugged in but regular quick smooth startup. Noticed light blue smoke with normal condensation exhaust for about 5 seconds, then normal condensation exhaust for about 30 seconds. Drove truck at normal operating temps with 5* deltas. To my knowledge, truck has original turbo (Garrett), never been removed or cleaned by me. VGT at startup 70-72, running after warmup mid 50's. Is this a symptom of needing to replace turbo seal, and thorough cleaning while off?
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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.
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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?
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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.
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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.
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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?
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My truck started fine my truck was running good. One morning while working from a hotel I went to start it in the morning and it started and stalled more than a few times but eventually ran fine later it did the same thing. The next morning it would not crank at all. I deduced it was the ficm and ordered a replacement the dash was acting funny and tach dropped before it died. I ran the. Test on the dash it swooped the gauges acted fine. I checked and wiggled sensors wires. I also checked were a splice at the crank sensor was it looked good then I bought a meter and the ficm seemed to have the correct volts it was a upgrade. Had 57volts at 1 screw koeo and while cranking.
PCM and replacing the crank and cam sensors. I don't really think it is the harness it will now crank and shut off crank and shut off like it did at first. He said it's stalling because it looses ficm sink. I haven't put new ficm on it ...the harness was allot better than the first. Could the crank sensor splice be wrong it is done its soldered together and heat shrink ... is it the ficm or the dash. I'm out of my comfort level I was also reading it only needs ficm sink to start. Not run. In addition #2 injector is throwing a code. I asked him if he thought the fuel was getting pressurized and his reply was the fuel has nothing to do with ficm sink. Also, I swapped relay out with my other 6.0. And its running fine This is everything I got ....
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So what is this wire that runs down by the engine? When doing my a/c evaporator I noticed it is melted by the exhaust and nearly seperated.
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I have a 2012 6.7 4x4,CC,SB, truck seems to run fine, I've only had the truck for a few months. The other day I laid into it and pulled hard, as I passed 3/4 throttle the truck backed off and didn't pull as hard. I backed off from full throttle back to 3/4 and it picked back up again.
Seems odd, I pulled a 1600 gallon water tank up a hill today and experienced the same thing again. I really don't understand why it would do this. I searched this and found one forum where several people experienced the same thing but no solution, all on stock trucks. I have a Spartan tuner an delete, I run the 80hp tune. Also when I got the truck I changed the oil, fuel filters, and air filter.
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'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!
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Another thread on here about Time for Batteries got me to thinking about mine and whether I should change them based upon time.
They have been in the truck 4 years and 6 months or so. I was reading some older threads recommending changing around the 3 year mark to prevent damage to the FICM.
I don't drive the truck everyday and sometimes it sits for 3 weeks or so. I noticed 2 days ago when I took it to work, I got one of the slowest cranks I've ever gotten. But after it's started and the glow plugs turn off, I get ~ 14.1 - 13.4 or so volts.
FICM voltage never drops below 47 and usually runs between 47.5 and 48.5 volts.
I'm not sure what size alternator is on there. Plus it's a single. I also have the upgraded cables that Mr. Jack recommended for extra battery life. I guess it's time for batteries though?
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This morning I noticed when I started the truck had a rough idle shaking truck. The truck felt weak. Boost would go up but truck felt like it was in sand. While coasting on the highway at 50-55mph the truck not only lags in power but vibrates viciously until the overdrive kicks in that vibrations in cab and ssteering wheel go away.. What might be going on?
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My V6 3.2l runs very rough for 1-2 minutes at startup when cold i.e. the first startup of the day, or after it has not been driven for several hours. Is this normal? I understand this might be something to do with the 'anti-knocking' feature. But I only use RON 98. Also I can here something like a tappet sticking when idle all the time. Is this normal, is it just a noisy engine design? The car has only done 1800kms.
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