Ford 6.0L Power Stroke Diesel :: F250 - Cold Starts Fine / Stalls Immediately After / No Throttle Low RPM
Feb 15, 2016
I'm having an issue with the truck not staying idle after cold start up. The truck will turn over and start right away (not even 2 second crank) but immediately dies. The throttle will not work at low RPM. When I start the truck, it will instantly rev high, the revs will drop low, it will try to compensate and rev high again, then it will immediately die.
If the RPMs are under under 2.5k, the truck will immediately stall and die. When I attempt to use the throttle under that RPM, it will not work. No matter how much I depress it, the engine will instantly cut and stall out. It will not attempt to deliver fuel. The only way I can get the truck started is if I rev the engine high and hold it. I need to hold the truck at 2.5k+ RPM for atleast 30 seconds. It generally takes me about 5 tries to finally get it running (mainly due to the throttle immediately cutting out and I have to 'catch' and hold it.) After that, there is no sign or issue. The truck will start immediately back up after it's been running for a couple minutes.
CEL: MAP sensor (0069?) -- Sensor is spotless. Harness looks fine. I replaced the injectors, both batteries, and the alternator this summer. It doesn't sound to be any these either as the truck sounds extremely healthy and immediately turns over.
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I have an 03 f250 that i think is getting air in the fuel line when it sits. It turns over starts and immediately shuts off. Then i have to crank it for a minute or so before it will start. After that it is good all day. Next day it might sputter on start but stays on. More than a day it shuts off immediately and needs cranking for a minute...
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I have a 04 late model F250. I have done the EGR delete, oil cooler upgrade, and blue spring upgrade. I have a SCT tuner but truck is currently set to stock.
My issue is it starts fine runs good but dies after about 2 minutes. No stutter or stumble. It acts as if some one just turns the key off. I have to let it sit for about 2 minutes and then it will restart. If I try any sooner then it just cranks but will not fire. This started about three weeks ago. At that time I would be driving and it would just die. I could slip into neutral turn key and it would fire right back up and I could continue down the road. As time has gone by the issue has reoccurred more often and now I have to let it sit for about 2 minutes to get it to start again but then as stated only runs for about 2 minutes and then dies again.
I have a scangauge and here are the readings I can get.
FICM main power is 47.5 - 48 volts at all times = good
FICM Logic power is 10.5 - 11.5 volts at all times = ???
IPR is 33% at idle = good Scangauge does not react fast enough to get info at startup.
ICP voltage KOEO 0.25 volts
Start 1.33 volts
Idle 1.11 - 1.13 volts dips briefly to 0.96 volts
ICP pressure Start 900+
Idle 830ish
Sync between CAMshaft and Crankshaft is 1 = good
Have not gotten fitting to do fuel pressure test yet.
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I'm TSing a no-start on my 2005 6.0L F250. Engine cranks fine. I've been working my way thru the TSing guide and using my new ScanGaugeII. No codes found. At glow plug warmup, (dash light goes off), I'm getting 40.5v FMP, 11.0v FLP, 14.8% ICP, and 0psi IPR. After cranking for 10-15 sec, get 35.5v, 10.0v, 84.7%, and 446psi. I've had a trickle charger on all night to keep the batteries charged. Have not seen FMP over 45 or IPR over 470.
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Have a 2004 6.0 that stalled out while driving. Wouldn't restart. Took readings this morning. ICP was very low (below 100) and IPR was at 85. After a few times of taking readings I could get the truck to start up with an ICP reading over 500 but IPR was still at 85. When it did start up it would almost immediately die. Does this sound like an IPR problem or a oil pressure problem?
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2002 Excursion, 7.3L 375,xxx miles ... As the weather is cooling off, my excursion has a starting problem for a few years.
Replaced all the glow plugs last year. We (my brothers and I) thought it was injectors, but in the summer time or if block heater is plugged in, she starts normally and idles smoothly. And no smoke and runs fine once she warms up.
When cold, it acts like 1 or 2 injectors are not firing. Have run all kinds of cleaners through the oil and fuel.....
Don't want to swap injectors just to swap parts. Would like to diagnose problem....
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My 2002 f250 starts but has no throttle, I did replace the throttle body, still no luck, i did find a wire on the shiffter that had a bad spot , fixxed it still no throttle, code reader says it passes with no codes, I disconnected both batteries and waited 15 to 20 min, reconnected them, started the truck and let it idle for 20 min so what do i need to do now. I just cant figure it out....
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2005 f250 240,000 mile has been hard starting a couple of days in the low 20's. Fires and stalls, got it start the first time it acted up but had to long crack with throttle to the floor. A week later would not start at all again fired and stalled. Plugged it in for 2 hours and fired right up. I had the FICM replace at about 150K and all glow plugs at 130K I will check it this weekend. Am I looking at another ficm or something else? Whats the trick to getting them started when they fire and stall. Need to go on a trip and can't plug truck in at airport and temps will be in the teens next week!
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I have a PS 6.0 in my '04F350 that starts very reliably but stalls within 1-2 seconds. Restarts after cranking for 5-30 seconds. This only occurs if the truck sits for more than 6 hours. The longer the truck sits, the longer it has to crank to restart. Also if the tank is full and the truck is parked pointing down hill this does not occur, if it is parked pointing up hill it occurs even with a full tank. Shows no codes. I've had several mechanics look at it and no one has been able to explain or propose a solution expect for wholesale replacement of parts. The symptoms indicate to me that air is getting into the fuel system but I'm not sure where to look.
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My 2012 diesel frequently stalls momentarily after I touch the brake. This is very annoying as I drive in heavy traffic and often have to touch the brake then accelerate to merge into freeway traffic. The dealer service department said this was a 'feature' and not a flaw. Is there any way to eliminate this issue?
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Went out to start my truck this morning and it wouldn't start. Cranks fine and almost started once but died. Checked all fuses all my voltages are good. Oil and coolant are good. When I turn the key on I can hear the fuel pump and sounds like it's priming correctly. Might be an issue with a clogged fuel filter? Maybe? Haven't had any problems or issues otherwise.
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2007 F350 138,000 miles
I'm having a small problem. For the past couple of weeks I've started the truck in the morning. I let it run for a few min's as I always do. I jump in it an put into gear and it stalls. Put back in Park , starts right up and then is fine.
knowing that the EGR is due for its monthly cleaning, I went ahead this time around and got a new one for it. Same thing this morning.
I think its kinda odd that it stalls that one time and then is fine. I do run a scan gauge in the truck as well.
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This is a 2007, 143K F350 Sometimes will sit for a week before I use it. It has a mind of its own. Some days it will start right up and if I put it in gear it stalls. I have to wait for the EOT to come up to normal temps. Yesterday I drove it to the store that's a mile away and when I pulled into a parking spot it just stalled as if I turned it off. Doesn't happen all the time.
I do use a scan gauge on it all the time.
Cold Start
Key on Engine off
IPR-14.81
ICP- 0
FICM 48
Start up
IPR-31.21
ICP-917
FICM 48
MAP- 14.6
ECT 90
EOT 82
As its getting warm
ECT 126
EOT 111
IPR 27.3
ICP 712
put into R and Drive
ICP- 711
IPR 25.3
In Neutral
Brought RPMS up to 2000
IPR 32
ICP 1000
FCIM 48
RPMS at 3000
IPR 49
ICP 1800
FCIM 48
Back to Park and ideling
ECT 164
EOT 155
IPR 23.8
FCIM 48
MAP 15
ICP 585
I'm trying to elimate ICP and IPR, Do these numbers look correct?
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My truck has been doing great lately after the major surgery she's been through. She is an '06 F-250, with about 238k miles. I've noticed a few days ago that there is a grinding noise and feeling in the gas pedal. (Or diesel pedal..? ) I can feel it right when I slightly ease into the throttle. It goes away once I'm up and going. But its the kind of grinding that sort of worries me. It is also apparent when in reverse, almost more noticeable.
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I just bought an 05 F350 and it starts fine when cold but after I drive it a while will not start even after sitting for up to an hour (overnight cold start fires right up). I replaced 1 battery and alternator and it started up right after install but after driving for a while still have the problem - cranks fine but will not start.
Buddy of mine has the same truck (just a 250) and had this same problem recently and had to replace the High Pressure Oil Pump, which was super expensive! This is my first diesel truck and it runs like a champ (once it starts!)
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So,I am working on a 2003 F250 6.0 manual trans. all stock. 204,000 miles. I got it not running. Charged the batteries and pulled the 14 codes accumulated by the last people trying to work on it.There were cyl 1,2,5,6,7,8 contrib codes, P0403 and P0405 egr(the egr was unplugged when I got it), P0341 Cam pos., P0500 VSS, P0562 voltage low, P0683 glow plugs, P1378 fuel inj. ctrl., and a P1000. It is on it's second used car lot, no one can fix it and I don't know what they have done.
Cleared the codes, removed, cleaned, replaced the EGR, installed new batteries, and went over the wiring harnesses. I am down to the P1000, an occasional P0405, and random cyl 3, sometimes 2 contrib codes. If I warm it up and clear the codes, I don't get any contrib codes.
I hooked up the Scan Gauge and the ICP is 554-up cranking, starts without any long crank, runs at 644 at an idle, revs up and reads 2404 max. This is sitting in the garage.
The IPR was 14.8 to start off with, running mostly between 29.7 and 38. revving it up. The FMD is steady 48.0. I have run the buzz test both warm and cold- sounds good, no faults found. Have run the KOER and KOEO demand tests, no faults. There is no smoking. I have changed the fuel filters. I have not located an adapter to hook up my fuel pressure gauge.
As it is right now, it starts reasonably well (it's in the 20's here at night). It runs rough until the temp gauge gets to the top of the little thermometer symbol, then it runs better. The turbo sounds like it's operating as expected, nothing weird. Cold it has a rough idle and poor throttle response. Warm it idles well, with an intermittent light "shudder" .
The weirdest thing I find is the fuel pedal, when I rev it up warm, it won't come back to idle right away, takes 10-20 seconds. It also does this shifting. It does not rev up on it's own, and it will stick at any RPM. I did not find a value for TPS on my datastream on my scan tool (Auto Xray Tech scan 7000). When I let off the throttle the IPR and HPOP pressure drop. The truck was hardly driven for the last 7 years (6000 miles).
I have added some Archoil 9100, that smoothed out the warm operation even more, it drives perfectly down the road (300 miles the other day). I sent the FICM (the guys on the other forum insisted my problem sounds like the logic side of the FICM) to Ed, got it back, no change. I took a peek at the IPR, it is shiny and clean, the connector is tight and free of oil.
I removed and inspected the throttle pedal, it's seems clean and operational. It only has the cylinder contrib codes cold, and it is usually only one cylinder, that cylinder changes, first it was 8 a couple of times, then 3, then 2, now 7. Which injector could be bad and there is no smoke.
I guess the biggie here is to get the throttle to stop sticking. It runs better everyday, but the sticking could be dangerous. The rough running cold cold just be this engines normal. The light shudder at idle goes in 3-5 second increments- light shudder-smooth-light shudder-smooth...
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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've been having rather slow throttle response with my 6.0 f250 diesel at lower RPMs. Obviously, this is to be expected to some point.. Whether I'm cruising on the highway or through the neighborhood, if the truck is at lower RPMs and I try to accelerate, it doesn't want to. In order to get it to accelerate, I have to press the gas down enough to downshift it then it'll take off.
The truck doesn't have a loss of power at higher RPMs, it takes off like a bat out of hell. I've put 175CC injectors in, tuned it, power max turbo, EGR deleted / studded, etc. It's almost go out with acceleration, or go turtle power with acceleration.
Oil pump was replaced a couple years ago. This problem existed through it all, and it's rather annoying. The truck doesn't want to produce any low end power. If I try to hit the gas enough to accelerate but not enough to force a downshift, I'll just blow smoke, spool the turbo, and barely accelerate until I down shift or push the truck through it. Turbo PSI is roughly ~15ish-20ish during the sluggish transition.
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I'm posting this for my neighbor who has a F250 that's 8 years old. He has replaced many parts, engine from what I know but now when he starts the truck it starts fine but as soon as he starts the truck, the brakes lock up. He can't move it. He hasn't had the chance to move it because the brakes lock as soon as the truck starts. It starts fine and idles fine but can't move because the brakes are locked. Tomorrow the tow truck will haul it to the ford dealership so they can look at it and run the diagnosis computer on it.
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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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This truck isn't mine but it's an 05 F250 automatic. We just did oil cooler, STC, standpipes, dummy plugs, EGR delete, and cleaned the turbo. Truck starts perfectly and runs great 99% of the time. But after a high load throttle situation right when you let off the throttle the engine sounds and feels like it cuts out for a split second, then it comes back and everything is fine. It does it with stock tunes but it is more noticeable with his SCT tunes loaded. There are no codes being set. The weird thing is if your drive it relatively easily it never does it, and it never does it while it is actually under high load, at WOT it pulls like crazy until you let off a bit and then it happens.. It also doesn't do it every time but it is fairly often. It has edge insight with fuel pressure monitoring added, ICP doesn't drop out and neither does fuel pressure. What could cause it to do that?
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