Ford 6.0L Power Stroke Diesel :: Rough Idle - FICM Is At The Start Of Going Out?
Feb 25, 2017
So after replacing all injectors, I was getting a rough idle and drive. Got an imbalance on 5 & 4. Cleared out codes and 5 still showed. The guy doing my work and I couldn't trace it to anything so we thought well maybe we got a bad one. Did fail the buzz test. So got a warranty one and put in. Wouldn't you know it's still not running quite right. Only thing we can think of is maybe the ficm is at the start of going out. Voltage reads good still though. Staying constant at 47/48. Is more noticeable to run rough when starting from cold then smooths out but you can still make out/feel an injector going in and out.
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I just bought a 2007 F350 6.0 two days ago, so I was giving the truck a good wash today using a electric pressure washer. The engine bay was pretty dirty so I decided to take some soap and a brush to it. After cleaning it I let it sit for a while in the sun to dry. (engine was stone cold). After it had completely dried out I go in and it cranked right up. I let it idle for a good minute-minute and a half put it in drive and pulled away slowly, right when I touched the accelerator it started running rough, so I popped it into neutral and let it idle for a sec but it was still running really rough so I cut it off not wanting to damage anything worse.
I let it sit and tried to start it again, it just turned over and over. I checked the oil level it was good. So I pushed it back into my driveway to figure it out. I took ICP connector out and tried to start it, just turned over and over. took fuel filter out it was just replaced 2K miles ago it looked a little dirty but not super bad. I put that back in. took icp out again and tried to start it and it started but ran super rough and was dumping black smoke out.
I checked back all ficm connectors and they were all connected. I haven't checked the voltage on that yet, but plan to do that tomorrow. the previous owner had the ficm go bag about a year ago and he sent it off to ficmrepair.com and they fixed it for him. also he had the stand pipes and dumby plugs done as well as the stc on hpop. im kinda at a loss on where to go now other than to check voltage on ficm.
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2003 6.0, all stock. Crank, no start with an occasional sputter when it actually shows FICM SYNC = YES.
It had the following relevant DTCs when I scanned it:
P0261, P0270, P0276 and P0279 - Cylinders 1, 4, 6 and 7 - Injector circuit low
P132B - Turbocharger/Supercharger boost control A performance
P2614 - CMP Open circuit
P2617 - CKP Open circuit
CMP/CKP SYNC transitions to and maintains YES while cranking, however FICM SYNC transitions back and forth between YES and NO while cranking. When it transitions to YES, a cylinder or two will fire when FIPW comes up, but FICM SYNC almost immediately transitions back to NO.
Based solely on the scan tool results, Cranking shows IPR DC at about 50%, ICP PSI ~1500, ICP V ~2.0. These are stable and steady. FICM main power is at 49.5v and drops to 49.0 when it fires the occasional injector while cranking. RPM reads above 150 while cranking.
I'm thinking that since CMP/CKP SYNC stays YES and is stable and RPM reading is consistent, the CMP & CKP sensors and circuits are most likely good. I'm thinking with the codes for injectors 1, 4, 6 and 7 it probably points more toward a FICM issue.
Another thing that may or may not be relevant is the pre-cycle clatter sounds off to me. With an ambient temp of about 70F, the pre-cycle seems to repeat 3 times. The second and third cycles sound worse than the first. This is in the video below.
I work on far more 7.3s than I do 6.0s, so I'm looking for anything I may have overlooked, a second/third/fourth opinion, or if there's a flaw in my logic for someone to point it out.
6.0 No Start - YouTube
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So I am getting low FICM volts at cold start. The FICM will start at 46v and eventually drop below to 42v, but when I start to drive the truck the FICM volts go back up to 47.5, and my battery voltage goes back up to 13.8 to 14.1.
I am pretty sure my alternator is doing its job.
I left my truck sit for 2 or 3 weeks with out starting her or putting a battery tender on it, this was about two weeks ago. I have not had this problem before. Sounds to me like the batteries need a charge.
My batteries back up to full charge. I plan on letting the truck sit over night with a charger hooked to it.
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I just bought a new to me, 2005 ford f-350 6.0L turbo diesel with 220,000 miles. It has an EGR delete, and aftermarket intake and exhaust. I am having power loss issues, and cold start issues, and judging from these symptoms, I figured it was the FICM. I thought it had to be the FICM. As per the tech folder on this site, I tested the FICM. I first learned that I have one of the Bullet proof FICM's, and when I tested it (3 times) it read between 57.5 and 58V. I conducted this test three times both with just turning the key, and with the truck running. I then took the truck into Ford, and they gave me a list of all of the codes the truck threw:
P0611
p0113
p0405
p0671
p0673
p0675
p0677
p0341
I researched all of these codes, and it seems to point to the FICM, but Ford stated they pulled a reading of 54.5v. The tech then told me that the upgraded bullet proof FICM probably ruined my injectors, because my injectors we not upgraded. Is this True?
Even though my FICM is above the low limit for voltage, can it still be going out? I am taking the truck in to have the batteries load tested, so I will know if they are contributing to my FICM failing.
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My f250 was parked this winter to get work done. I had put a new exhaust on and while crawling on the engine bay it had kicked the fuel reset by the passengers kick panel. After pressing that button the truck would not start and threw FICM codes. (Power low to FICM) and my Scanguageii had said that power was very low (27 volts) during cranking. I sent the FICM to FICMrepair.com. Today I had put the FICM back into the truck and went to start it. I cycled the plugs 3 times and started on the 4th. The truck did not start after this and had thrown more ficm codes. What it could be?
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2004 6.0 Truck has been slow to start and sometimes took a few tries to get it to fire up. On monday the Truck would not start. The FICM was not getting sync. I figured it could be a bad connection to the FICM. I pulled the FICM, cleaned the contacts and reconnected it. The truck fired up. It ran all day Tuesday without incident but wednesday morning it would again not start. Again what was missing was FICM sync. This time disconnecting and plugging back in the FICM did not fix the problem. I have spent the last two days troubleshooting and am out of things to try.
The problem as it stands right now
The truck will crank but not start. Scanner says it has oil pressure, a steady 48v (FICM has new power supply). The IPR sits around 50% when cranking at 1200psi. However, the FICM will not get sync. I have worked my way down and tested both the Cam and Crank sensors from the PCM. The Crank sensor has a resistance of 360 ohms and produces a AC voltage of 500mV when cranking. The camshaft sensor produces 100mV AC when cranking (camshaft sensor was replaced as the original produced AC voltage seemed low 20mV, new sensor produces 100mV). I have tested the camshaft sensor at the sensor and at the PCM connector. This has lead me to believe both the cam and crank sensors are ok and their signals are being probably transmitted to the PCM.
I have tried to check the inputs to the FICM to confirm the signals are getting there. I was unable to find a good pin out diagram for the 2004 FICM but what I found told me the crankshaft was pin 5 and the camshaft was pin 10. When cranking, pin 5 (crankshaft) did not produce a signal and pin 10 (camshaft) had a 200mV DC signal. Despite searching I have been unable to find what the input signals to the FICM should be.
Right now I suspect bad wiring between the PCM and the FICM, or a bad PCM. This is based on having good signals to the PCM, but (what I think may be) a lack of crankshaft pos. sensor signal to the FICM. I am specifically looking for what the crank/camshaft pos. sensor signal at the FICM should be, as well as confirmation/disconfirmation on the diagnosis of bad PCM or PCM-to-FICM wiring
Truck Details
Ford F350 King Ranch 2004 6.0
Truck build date 11/18/2003
350,000 km
Studded
New FICM power supply
Stock truck; don't run any tunes
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So, I've been having cold start issues for a couple of years now especially when temps get below 25 or so. It started with virtually no issues until temps got into the 20's but got to the point this year where it run a little rough at startup even in the summer. Once ECT gets up around 140* it runs pretty good.
I took it to a diesel shop last year and was told I had 1 bad injector and a bad glow plug. I couldn't afford to do the work, so I waited.
Now after researching this site, I'm more inclined to think it may just be the FICM. I've seen scangauge numbers in the low 20's up to 48.5. On cold morning FCM will usually start in the low 30's and gradually work up to upper 40's. The batteries were both replaced 2 years ago, but I probably should give them a load test. The alternator voltages vary from 11.0 to 12.5 when cold and 12.5 to 14 once warmed up. I have noticed that the AC blower will slow down a little when I sit at a red light, and then pick up again when taking off. I don't notice it with headlights or anything else.
According to Bismarc's spreadsheet, alternator numbers seem to be in the acceptable range, but I don't want to get a new FICM and fry it with a bad alternator. I can get the alternator or the FICM now, but if I need to do both at once I'll need to wait a bit longer.
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Have a 2004 f250 that is having issues. Once the truck is started the idle goes from normal to loud almost sounds like its going to stall. A few weeks back the same happened when i was on a red light. It choked almost to where it was going to die. I accelerated when light turned green and would not move at all. I had to literally use full throttle to get out the road at about 5 mph. I pulled in to a gas station and fueled up as i had a quarter of diesel left and it stopped the rough idle and power starvation once i started the truck up again. It sees like this time its getting more persistent... FML AND THESE 6.0 problems
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I have an early 03 F250 6.0 that won't start after I replaced all 3 FICM connectors, also # 8 injector pin and connector. It has been almost impossible to start before the repair.
I checked the grounds on
Pins #1 2 3 22 they were all .5 ohms
Pin #32 was 1.0 ohms.
Pins #7 27 were 12.7v ( battery voltage)
I have double checked all pin connections and wire colors, they are in the right holes, I haven't done any cranking voltage tests, as I am alone. The FICM has 48.2 v.
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I have been debating if i should use seafoam engine treatment. My truck has been having issues with the first cold start of the day. I've noticed the rough idle that accompanies the cold start. I live in Denver so this truck sees alot of stop n go traffic. Will seafoam do anything about the dirty fuel injectors. They have to be replaced here soon but will adding seafoam solution buy me more time. If so, what are the steps on how to add. The can isn't very detailed on instructions and Internet isn't being useful. I have an 04 F250 Lariat Power Stroke 6.0L diesel
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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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2007 6.0l cranks but no start. Read all the forums and I think I performed all the checks. Getting a ficm/ cam sensor/crank sensor no sync. I'm also getting 84.70% at the ipr while cranking. Do I have multiple problems? Watched videos on either the ficm or ipr percentage but not one that had both problems. Getting injector clatter and fuel pump runs. Didn't see anything obvious with the harness.
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Rough idle I have had for little bit.Would stall out at idle or a stop, but fire right up? No one could figure it out with the stalling, but now its bad, started yesterday. Have white/blueish smoke sometimes, ( white smoke smells fuel) on restart after warmed when it dies, first time it took 25 mins to restart, now only takes 5 to 15 mins, when I step on it INCREDIBLE full power, fuel mileage gone to hell also since yesterday. Had full tank, now 1/2 tank.
No problems on cold start at all, no check light, 325,000 and never had this before.
Bad fuel?
ICP?
FICM?
Recent work, new turbo, ( turbo was original turbo installed when built) cooling line to waterpump, oil change, new fuel filters, front brakes and 2 new batteries.
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Truck has been doing this and now getting worse. 06 f250 6.0 147,000 miles. Runs like crap when you first start and truck has trouble shifting when I first take off in the mornings until it warms up then it idles fine and runs like a champ no problem shifting. Not in a cold climate 40F at the least. Not trying to take it to the dealer and get raped. Been doing research some people say get the inductive heat flash, some say needs new injectors, some say could have a bad gasket on the injector idk. I'm trying trying to get it resolved....
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My '05 Excursion recently started having rough idle and some loping when started cold. It seems to run good and idles pretty good when it warms up. I'm also getting a P0488 code (EGR Throttle Control Circuit A Range/Performance). I do have a BPD EGR and I don't recall if that would throw a code alone? I'm taking a trip next week and want to get it straightened out. Does it sound like an EGR valve issue?
I also thought about a battery issue, I know that can cause weird problems. I have Duralast batteries and they always seem to fail at about 2-3 years. I took it in and they say it tested good but I'm not always sure with them. Long story, but when cranking for longer than normal, the cranking power would drop quite a bit. Checked battery and had some corrosion. Cleaned and upon further inspection, the positive post is a bit eroded at the base and sunken in. The voltage was about 12.35 after sitting all night, a couple of the cells were reading lower than the others (about 50%, other 75%) when checked specific gravity. I tested voltage after batteries had been in the truck overnight, then unhooked from truck when testing.
I also thought about a glow plug/harness issue. The truck cranks for awhile before starting, 5-6 seconds sometimes, but not all the time. It starts up pretty quickly when warm. That's been going on for some time. Anyway, I will try to get a video of the rough start after cools down.
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I replaced injector couple weeks ago. I hooked up to livelink thru sct because it was throwing a low voltage for ficm code. It is staying at 48 volts tho. I don't see any voltage from my glow plug relay, and I have a low voltage for my egr valve. Is it just bad luck that everything broke at once or is there a fuse or a connector that I forgot to plug in.
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If my ficm is going bad will it cause it to jerk going down the road and spit and spudder going down the road..sounds like injector but it aint smoking at all.. I think there;s a recall for the ficm for my truck too.. f250 2004 6.0....
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My ficm has been dropping to 44v occasionally so I have ordered a 270a alternator from Ed at ficm repair along with the complete battery cable kit. I also took ends advice and bought two new odyssey 65 series batteries. I went with bpd 6phase ficm though because I like the idea of the extra phases to share the load and back up the 4 primaries. I am also doing the blue spring upgrade while under the hood as well.
So my question is this.... My truck is bone stock no mod 53k mi. The bpd ficm can be set to 48,53 or 58 v. I do not see the need to do 58v but have seen a lot of guys doing the 53v option. What is the advantage of 53v? I know if you run 220 thru a 120v light bulb it will burn bright as hell for a little bit till it blows, is this the case with running a higher voltage ficm? Will it eventually wipe out injectors? Or even the ficm processor board? Should I just stay at 48v setting?
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This is the second time this has happened to me . Truck runs fine shut it off go to re start and it's a no start. I can watch the ficm volts drop to 0 from 48.5. Then it's 0 until it decides it gets power again?
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I'm afraid my FICM is on its way out. I'm getting voltages dropping to 46.5V about once a minute. Never goes below that. Then it'll bounce up to around 48.5. It gets low when I have to rev up and always coincides with the main voltage dropping to around 12.9V.
Now for my battery condition. They are about a year old. I think I have one with a bad cell. They'll drop into the low 11V range while cranking after glow plug light goes off. While driving, the main voltage never gets below 13.1 except for very short periods ... which coincide with the 46.5V output on the FICM. Gonna have them tested separately at advanced auto and see on has a bad cell.
So, is my FICM starting to go? Second question. What do I tell the folks at Advanced Auto about replacing both an not just one? I suspect they'll want to argue about it with me.
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