Ford 6.0L Power Stroke Diesel :: Intermittent Hesitation After Stopping At Light / Stop-sign
Jun 7, 2015
Trying to troubleshoot a very intermittent (has happened on two different occasions during the last 1,000 miles) hesitation from a stop-light. I've been recording engine parameters (Torque application) on both instances as these have been during longer trips after a period of highway driving. 2004 Excursion, 112K miles.
This feels kind of like severe turbo hesitation (4 to 10 seconds trying to start out before it kicks in) but I don't think that's it. The turbo is a new PowerMax turbo replaced 5 months ago. VGT readings seem pretty normal. The EGR valve is new -- the first instance was with the old and the second was with the new. I've also recently replaced the EGR and Oil coolers (before this).
Here's what's interesting in the captured data though... Normally when I coast into a stop-light the indicated engine load stabilizes at about 40-50% and VGT moves to about 65% to 70% at idle. The two different times this happened (actually multiple times at stop-signs/light close to each other over 5 minutes or so for both of these), when I have coasted to the stop, the engine load increases from low values during coast-down (0% during freeway coast-down or 19-30% during other coast) up to 99.6% (or other similar high values) at idle and VGT seems to be full closed at 85%.
There is absolutely no response to the throttle in this situation for 5-10 seconds. I've either been goosing the throttle a bit or putting it neutral and revving it up first to get things going again. When it finally catches and starts accelerating with power, indicated engine load drops to 50-60% again and VGT opens up to 40-60% or so. None of the other parameters I've been capturing seem to read strangely during this that I recognize. No issues observed during cruise and power seems good. No pending DTCs or engine light.
Here's what the data points I'm capturing (once each second):
Boost
Calibration Input Volts
ECT
EOT
Fan RPM
FICM main volts
Fuel Injector pulse width
ICP
ICP Volts
IPR Duty cycle
RPM
Engine Load
MAP
Trans Temp
VGT Duty Cycle
EBP
EGR Commanded
EGR Error
Added today but not captured during these issues yet:
IAT
IAT2
Baro
Accel Pedal Position
Mass Airflow Rate
Mass Fuel Desired
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A couple months back I blew an EGR cooler. My mechanic replaced it and oil cooler, when I got the truck back it was using coolant and on cold days below 35 degrees it wont start without a little shot of ether. I took it back and mechanic found a pinched o ring.T he coolant problem is ok but cold starts not. Now today truck was running fine then as I was pulling out of a stop sign I couldnt get over 40 mph, I pulled over and then tried to go but no throttle response,then died and wouldn't restart .I have no way of scanning, no dash lights came on. I am wondering if this is related another o ring or gasket,hpop ,fuel problem??? just replaced all the injectors and ficm a little over a year ago.where should I start?
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So about 3 days ago I made a long 9 hour drive. No problems at all but I did allow my fuel to get a little lower then I normally do. About eighth a tank had 30 miles left on the digital read out. Stopped and filled up at loves where I always get my fuel. And off I went drove it down to 3/4 a tank and made it to my stopping point. Got in to go about 7 miles down the road and come to a stop sign and slowing down the truck died. I thought crap I forgot to turn off the auto start but never done that before. Stopped and stared truck as normal. Made it to my stopping point again. Headed back to the house and doing on average 55mph and truck surges like it wants to die but doesn't.
Rpms drop below 500 and it keeps going I get to same stop sign and slowing down again doing maybe 25ish and truck dies again as I have my foot on the break. Put in nut and started it right up and drive on home. Today went about same distance. Only this time I started it with key and was doing down other things while letting it run it just dies start it back up and take off get to where I was going and it surged or hiccuped so to say. Again started it once I was getting ready to leave and let it run for about 5 min and it died had the heater on as it was chilly out by the lake. Got in and restarted it and it was blowing cold air and had a diesel smell to it. Wife asked me if truck was going to blow up. Backed out of area and put in drive and made it 80' or so and truck died again doing about 10mph
Checked so far
Batteries checked and both are good
No mods done to it
New ICP sensor and pigtail
New water pump
New injectors 20k miles ago
Oil changed 1100 miles ago
New filters upper sad lower
2003 Ford F-250 King Ranch 6.0
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Have a 2004 F250 crew cab with the notorious 6.0L.. ive noticed what i believe is my tranny or maybe torque converter.? What happens is when i back out the drive way and the go into drive, i hear and feel a rough loud clink down under even when im at a stop sign.. I am a first time truck and diesel owner due to my field of work. Also it has a rought time starting in the mornings or anytime the truck is completely cold. Then after it warms up it behaves like it should. also ill get on the throttle and when i come to a stop, the idle is rough and slowly comes back to normal. ...???
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I know it seems like everyone's truck tends to have different tolerances when it comes to when it starts and stops regen when it comes to gpl but the last two times my truck has gone into regen it starts at 100% and finishes at 25%. Is it normal to stop regen when it gets to 25% or should it be stopping at 0%. Or could it be that the percentage in my truck is off and it's actually using the gpl to start and Stop? The only thing about that is that forscan says it's supposed to start at 100% which it does so if my percentage is off that would mean it was starting at 75% does it not?
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When I am on the highway, my 2005 Excursion (6.0) will hesitate/sputter/buck intermittently, usually between 70-80mph/ 1800-2200 RPM, but especially triggered by hills and inclines. Each sputtering episode usually lasts about 5-10 seconds and then will go away for minutes at a time. Does not sputter upon take off or initial acceleration. There is no smoke of any kind. Just got it out of the shop where the mechanic replaced ALL 8 injectors and the fuel pump, as well as flushed the fuel lines, and new fuel filters, and oil change (2 injectors were bad, but there was metal in the fuel filters, so to be safe I replaced all of them - ALL OEM PARTS for everything, including filters).
The week before, I had the IPR valve replaced. Also, recently had the back pressure sensor replaced and the EGR was deleted - and turbo cleaned when the EGR was deleted last month. I also tried unplugging the ICP sensor to make sure that wasn't the issue. Dropped $6k into this thing in the past month and about to lose my mind (and wallet). All research points to either clogged EGR or bad fuel injectors, but both have been addressed, so I am not sure where to look next. No current codes showing up. No signs of leaking oil.
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Finally registered on this site after hearing good things from others who are currently on here. Been a 6.0 PSD owner since buying the truck since new in 2003-F250 CCSB. I have done regular maintenance on it and have had a good run until recently. Everything is stock on the motor and currently has 229 000 miles.
I will describe my current problem: I have borrowed my brother's tablet and have the following numbers from the Torque pro app. While trying to accelerate it now has a hesitation and seems to not have the power.
At idle: 630 psi HPOP, 24 % IPR, 47 volts FICM, ICP volts .1
Trying to accelerate on at highway speeds: 1230 psi HPOP, 83% IPR, 47 volts FICM, ICP volts 2.6
Also, sometimes when starting the truck it seems to rev extra high for a split second. My brother says I may have a high pressure leak on the system. What I should check first?
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I have a 2000 Buick Century that only has 70000 miles on it. I have an issue that when I drive the car for a while, the transmission will shift hard after stopping at a light or stop sign. It only does it through the first three gears. If I shut the car off and let it sit for a few minutes and start it back up, it shifts fine through all of the gears. I have not had the change to change the fluid and filter yet. The fluid looks clean and is always full. I have read that there has been a common problem with a pressure control solenoid in the transmission needing replaced to correct the hard shifting. I am not getting any kind of error codes from the PCM, so I am not sure.
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I need to solve tranny problem, it started out a while back, would not shift back into drive after stopping at stop sign (after driving fine for about 20 miles) thought maybe dirty filter so did fluid and filter change seemed to work for a while then started again noticed it was mostly after using cruise control, but u joints were very bad, so replaced 2 of the 3 and worked fine for about a thousand highway miles, then got really bad. Now when I check the tranny fluid cold and /or hot it is way up on the dipstick. Took to ford dealer in ladoga, lied and said no speed sensor codes, but list on the paper he gave me had all kinds of abs and a p500 code.
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This morning as I was driving to work, my truck hesitated as I tried to accelerate from a stop sign. I pressed the pedal and nothing, almost felt like it was going to stall. After about 3 seconds it started driving again and I had no further issues. It seems to only do this in the morning when it is cold. It has done this a couple of times before, but usually it recovers almost immediately. I had no CEL come on. 2007 F150.....
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I have a 06 f250 king ranch with 6.0 . A few days ago my scangauge showed a code P0405
I changed my egr and after it showed two codes : P0405 and P0404
It still has a hesitation and loss of power , although better than before the Change.
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Well today I got an intermittent battery light so I got the batteries tested and they were both good and then the alternator is only pushing 12 volts so I guess I need a new one right? Which know should I get? And how hard is it to get the belt to relieve tension...
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My 2007 elantra has been rumbling when i change gears occasionally and sometimes when stopping at a stop sign the car just dies. The car starts right up though as if nothing happened. It only happens like twice a week but i really want it fixed. I already changed the motor mount next to the engine block on the left. Could it be the motor mount connecting to the transmission?
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The other day while at a stop sign in my e99 F450, I went to take off and stalled. I am not sure if the stall was my fault or not; however, it would not start. I turned the key on and the wait to start light did not come on.
The first thing I checked was the mini 30 amp fuse under the dash that controls the GRP and the fuel bowl heater. The fuse was good, and my heater has been unplugged for a while anyway. Recently my SES light came on with codes that said the glow plugs had low voltage for both banks. I have cleaned the wires a couple times and the light goes out but then comes back on after a minute or so.
I figured that maybe if it was a bad wire it finally went bad so I got jumper cables and started to try and jump wires. I moved them around and found that when I hooked one side to the positive battery terminal and the other to the small key hot wire on the glow plug relay, the light would come on and it would start. I left the cables hooked up and drove the couple miles back home.
After messing with it I figured I could run a new wire. I got a fuse tap, and went from the 30 amp mini fuse that controls this system anyway, and ran it up to the post on the GPR for my new keyed hot wire. The WTS light would cycle and it would crank, but no start. After some more messing around I decided to put both the original wire back onto the post with the new wire that I had just put on; after doing this it started right up. I took it for a test drive and a couple times the engine would act like it stalled, only for a split second. When looking down at the dash immediately after the tach would be at normal RPM and the WTS light would be on, as if I shut the key off and tried to start it again.
I suspect it is the original key hot wire that goes to the GPR. It appears that this wire also has a purpose, other then serving as only a keyed hot wire for the GPR. It has about 6 inches off of the GPR, then it goes into the harness. Where that wire goes? I will just run a new wire instead of having to dig through that harness... that doesn't look like something I would wish upon my worst enemy.
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I have a 2003 F 350 Crewcab 6.0 liter SD. I was preparing my truck for the first haul of the Summer. I noticed that my batteries were on their way out after 2 years old. I replaced them and noticed I had an intermittent battery light coming on/off on/off. It seemed like only at lower RPMs. So the day of my trip, I ended up changing out the alternator.
The trip went fine, however, I noticed that pesky battery light came on and then off a few times. I also got a hot plastic type smell from the front of my truck.....you know that hot plastic smell Anyway, I got home just fine. Via Torque Pro, my battery volts were reading 12.2ish when my battery light came on, but then would quickly return to 13.9.
Since I"ve been home, I have read about fixing the grounding points for our trucks and also adding a second ground wire and a second hot wire from battery to battery. I can not find exactly where the ground's lead to. I still have that fricking battery light coming on .....more often that not. How to chase this problem.
First I need to find out where the ground wires go to. My volts of recent have been reading 11.5-12ish when the truck is running and the friggin battery light is on. I did search and found a few links to this problem, but where to find the grounding points.
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2005 6.0L... Driving to work today, doing about 70mph looked down at the gauges and the tach was reading just above 1k the whole time. Even when I accelerated hard.
Got off the highway and came to a stop light and the tach went below zero (almost rested on top of the boost gauge) light turns green goes up to about 1k but no higher even though I stepped into it a bit.
Got to work and turned the truck off and then turned it back on and the tack started working again.
No mods to the truck other then a stereo system attached to the factory stereo wiring harness. I called the stealership and of course they want the truck to look at. I am curious if it is going to work or not on the way home.
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Whenever I take off from a stop or slow to a stop, there's a clunk in the drivetrain. It feels like a bit of play before the drivetrain engages and when it releases...torque converter maybe? Taking to the tranny shop soon...
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I've got an '04 6.0 that's recently developed an engine performance issue and I was hoping to get some leads on what to chase down this weekend. The truck has 75,000 miles on it and has been trouble-free since new when it comes to the motor. Recently I've noticed that, usually at a stop light, the idle will occasionally get very rough and the normal diesel "clatter" noise becomes rather rough sounding- almost like every other "clatter" disappears if that makes any sense. Up until last night this was happening very infrequently and usually only for a couple of seconds. I wasn't really sure what the issue was then and would rev the truck in neutral and the issue would go away. This has happened a handful of times in the last month or so.
I drive a company car all week and the truck only gets used in the evenings and on the weekends, and last night my wife and I drove it to dinner. The truck cranked and started normally and was operating smoothly until we got out of our neighborhood (about a mile of driving), then the rough running condition described above surfaced and continued throughout the 7 or 8 mile drive. This was the first time that it ran like this for more than a few seconds. The truck was running bad enough that you could feel the misfire or 'chugging' at speed. When the truck would shift into overdrive and the torque converter went into full lock-up, you could really feel this as the engine was lugging. I tried to keep the truck out of overdrive because it was shaking the truck pretty badly. When we came out of the restaurant I thought maybe the issue would be gone but it did it all the way home as well. Throughout both drives the Check Engine Light did not come on.
When I got home I got my DiabloSport Predator because I remembered it has a code scanner in it. I have never checked for codes before so I do not know if these are fresh codes, but there is a P0282 Cyl 8 Injector Circuit Low and a P1000 OBD Systems Readiness Test Not Complete in there.
While I was in the driveway with the engine idling badly for a few minutes, the issue completely went away and the truck smoothed out for a few minutes. It was like someone flipped a switch and the truck instantly ran properly. After a couple of minutes however, the issue instantly returned. I tried to clear the codes with the Predator but they will not go away. I am not sure how solid of a scan tool the Predator is????
I did a lot of searching on here last night because this is bugging me, and the symptoms I saw on here about the ICP sensor make total sense based on what I am experiencing. People were describing to a 'T' what I am experiencing. However, I do not have an ICP sensor code and when I searched for the P0282 that I do have I read about FICM issues here.
The rundown on the truck- '04 F-250 CC 4x4, truck was bought 10-03 and I THINK I remember the build date as 9/03 (maybe 8/03). Automatic transmission, DiabloSport Predator with 60hp tune, MBRP turbo-back exhaust, everything else stock. Oil was changed about 4,000 miles ago, both fuel filters done about 2,500 miles ago.
A few questions:
Could the ICP be my issue even though there is no code for it? Could the P0282 be coming from an ICP issue?
I've read about early '04 trucks having '03 motors and something about an updated harness for the ICP- could I get more info?
Is my truck part of the affected group with the wire-chafing I read a little about? If so, could that be causing this and what should I look for?
Does the P0282 immediately point to a FICM issue?
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My 05 has Glowshift gauges on the window pillar. All are analog except the digital fuel pressure gauge. It almost always reads 102 and that can't be right. Sometimes when idling at a stop light it might go down to 95 for a few seconds. Maybe wire grounding out from sensor?
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Turbo def needed rebuilt, unison ring was worn out. Ton of carbon build up also. Was leaking oil too. Rebuilt it, good to go now.
Egr cooler wasn't leaking and was plugged on the one end. Got the IPR kit installed, nice kit. Re sealed the oil cooler at the same time. CCV re route done.
Here is the kicker. It still SMOKES!!! Only when leaving a stop light. There was quite a bit of oil in the turbo piping. I cleaned that all out. Could it still be oil in the intercooler and it just needs times to get blown out? Or??? I did a power balance test, cylinder contribution test, injector kill test, and etc all passed.
Maybe hook the boat up pull a 6% grade and get all that blown out?
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I have a'04 f-250 6.0L diesel truck. There are times when i come to a stop that my truck sputters like if it's about to run out of fuel or want to shut off but the tank is full or half. If i am going at a fast pace and then begin to slow down and stop it will sputter.
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