Ford Super Duty (1999-2016) :: 2001 F250 - How To Diagnose Misfire With No CEL
May 23, 2016
How to diagnose misfire with no CEL? 2001 F250 5.4. What could cause it?
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May 23, 2016
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Ford Super Duty (1999-2016) :: F250 V10 Misfire - Shaking At 80 KMH
I have a 1999 f250 v10 auto. It has 3 miss fires thats im stumped with .. Ive replaced all spark plugs, all coils , I've had injectors out and were cleaned and it still miss fires. I can disconnect the coil and injector on the cylinders and the motor runs the same. Ive swapped the coils and injectors around to make sure it wasn't them. What else could it be? Frustrated I've had the truck for 2 years and haven't figured them out. Ive had them go away for at most a day. Also the truck has a shake at 80 kmh not sure if its from the miss...
View 13 RepliesFord Super Duty (1999-2016) :: 2003 F250 - Misfire And OD Light Flashing
OK, quick question. I have an '03 250 with the 5.4 and the OD light began flashing tonight. I looked in the forums here and everyone say's new tranny or sensor but over on the diesel forums the are saying that the alternator is a big cause of this (dirty power).
At the beginning of this year I noticed what I assumed to be a misfire when putting the motor under a load. Once up to speed it would smooth out and all was good. I was told that a plug job on these trucks is hellish and expensive since a lot of guys break the plugs off in the block. I put it off and the issue went away when the weather warmed up.
Now it's getting cold again and the misfire is back. Driving home tonight the truck died at a light. I restarted it and as I accelerated I noticed a difference in the shift from first to second and then saw the OD light blinking.
Again, the diesel guys are all talking alternator so my question is this: could the alternator cause both the OD light to flash AND the misfire? If the "dirty power" can cause the tranny to fall in to safe mode, can it also cause the ignition to be problematic?
Ford Super Duty (1999-2016) :: 2007 F250 - Misfire At Highway Speed
Have a 2007 F250 6.0 diesel with the standard issues including misfire at highway speed. Assume the bulletproof kit also cures the stiction problem? in reviewing the threads and looking at the vendors, references are made to fixing the oil cooler issue, egr issue, etc., but no one addresses stiction issue directly.
View 10 RepliesFord Super Duty (1999-2016) :: 2005 F250 - Code For Cylinder 3 Misfire
My 5.4 F250 with 200,000 miles having many problems... It all started a few months ago, when the cam needed to be replaced, and a cam phaser was also replaced at the same time. It ran fine after, then threw a code for cylinder 3 misfire. The guy I took it to said it was due to the huge crack in the exhaust manifold and that was messing with the o2 sensor coming up as a cylinder 3 misfire. So, got the new manifold and it was good for a few weeks.
Now, starting the other night, Friday the 13th, it threw a CEL when I was coming into the driveway. It had been throwing a code every once in a while, and I brought it to school to scan it Friday the 13th but there was no code. So, I assume that it is an intermittent problem, no big deal. When I go to get in my truck to go to work a few hours later, the 5.4 cranks... and cranks... and cranks.
I get it to fire up, and it dies again. Run codes, and it says that the cam positioning sensor is broken. Replace both of them, still acts up ie. doesn't start when it does start it runs very rough and stalls. Get it up to my uncles shop, and replace fuel filter.. Still runs like trash. Run codes now, and it says rich/lean in bank 1.. My uncle tells me to move my truck out of the shop, so I start it up, and it runs great. No hiccups, it idles perfect as I move his truck out of the shop first.
I park my truck outside and let it idle for about 10 mins, and when I come back out it is still idling, perfectly fine. I get in, put it in reverse, and get about 20 feet when it dies and will no longer start back up. What could be going wrong?! Sick of throwing money into this thing! At one time while started up in my uncles shop, it was blowing black smoke, as if it was a diesel!
Ford Super Duty (1999-2016) :: 2002 F250 V10 Misfire When Driving Roughly Between 30 - 40 MPH
OK, not sure where to start so here goes. I have an 02' f-250 with the v-10. I just had some minor front end body work done and when I got it back I noticed that it just didn't feel right while driving. When I start it, I notice a small misfire while I stand next to the exhaust outlet. Nothing too bad, still runs great. Shortly thereafter I started noticing a more habitual missing while driving. Roughly between 30-40 mph and around 12-1500 rpm the truck feel like the driveline is about to pickle fork the truck. If I let off the gas or step on it, the vibration goes away. And very intermittent.
It will only do it when the truck is warmed up. If I only drive about a mile, it won't do it, yet if I turn around and head back, there it is! Now the weird part. I for reasons I won't get into, I left my ignition on and drained the battery. I just replaced it and for the last 2 days nothing. Nt even a misfire. Now today here it is again. I have read all over the forums for this exact problem and cannot find my exact problem. I have replaced the plugs with Autolites and cleaned the coils as well as the boots and applied a small amount of dielectric grease to the top of the plug. The boots are cleaned and not a sign of cracking or wear.
I replaced the PCV valve and nothing. All the plugs looked exactly the same. Light chocolate in color. Not one looked different than the other. I took them out again last week to verify the plugs weren't bad and the new ones all looked the same as well. I cleaned the MAF sensor also. Just cannot figure out what could be doing this all of the sudden. I don't see where anything wasn't plugged back together when it was being worked on and why would a new battery make it go away for a short time? Oh, and lastly, I have a superchips programmer that came with the truck and there are no codes showing and my check engine light has never came on yet.
Ford Super Duty (1999-2016) :: 2005 F250 - Hard Start - Misfire Code?
I have a 2005 F250 with the 5.4. This truck has been one thing after another, as you can tell from my other posts. The problem this time is, if it cranks hard to start because it's cold(can be anywhere from as high as 32, but usually in the teens) it will start just fine, then several minutes later throw the check engine light. Put the scanner on, like clockwork, 4 codes, always cylinder 1 misfire pending, misfire on first 1,000 revolutions pending, cylinder 1 misfire confirmed, misfire on first 1,000 revolutions confirmed.
Sometimes you can hear a slight lope in the idle when it does this. Clear the codes, runs perfectly fine. It will never do it after it's been started for the day. Some days you would think for sure it would throw it when it's frigid and the winds been blowing on it, it doesn't bother, other days you wouldn't think it would, and it does.Can the computer think that since it didn't start right up, it misfired?
Ford Super Duty (1999-2016) :: 2008 F250 - Random Misfire Detected On Cylinder 7
Truck Specs:
2008 f250 super duty 5.4l
78xxx miles
4x4
Automatic
Issue:
P0300 (random misfire detected)
P0307 (cylinder 7 misfire)
Let's start from the beginning...
I was getting the notorious 5.4l ticking sound. After doing research on this issue. I found that it could be a few different issues including:
Cam Phasers
VCT solenoid(s)
Loud injectors
Valves
Exhaust leak
Loose spark plug
The list could possibly go on, but these being top concerns or issues to look into.
I took it to my mechanic and wanted him to research the ticking problem. This was my primary concern due to it was getting worse over time. I didn't want to do more damage than what was possibly already done. I told him to go ahead and change the spark plugs while you're checking into what's going on. (I know those plugs can break and I didn't want to do that.)
At any rate... the plugs got changed to motocraft brand (I know the trucks can be finicky with the parts you put back into them so I went with the motocrafts to avoid any complications.) After the plugs were changed, he told me that the ticking was caused from a blown exhaust manifold gasket (yay me... not internal parts or anything too serious. Sweet!)
I had to reschedule to get the gasket done, but knowing what it was now I wasn't too concerned about driving it. So I did. The new plugs are also in the truck at this time. I drove it the next day and right away.. I noticed a misfire. Thought maybe the plug was bad. I told my mechanic about it and he said... Sounds like a COP to me.
So I get a new COP. Okay.. easy fix. Installed it and still got a misfire. Told my mechanic and he said get another COP. So I'm thinking.. "Okay.. get a new part to fix a new part.. sounds logical.. lol" so I do what he thinks might be best. I replace the COP with another new one and it's still misfiring. The new cops are also motocraft brand as well.
Okay... next step.. he claims it may be a VCT solenoid issue. At this point I don't care.. I just want my truck fixed. So he replaces the driver side solenoid. Still misfiring..
So after doing some research on the scanner... we locate some issues that are the exact symptoms I'm having. Misfire.. at low rpm.. during cruise control.. and a sudden at idle.
This information states for this drivability issue.. to spray injector cleaner/carb cleaner into the engine and possibly clean it out. Makes sense. He did this as well as changed the fuel filter. Also did a pressure test on the injectors to make sure they were good. They were. After spraying and cleaning it out, it was taken for a test drive and it seemed okay... but not perfect. The next day.. the misfire came back.
He said that if the misfire returns, that I need to contact the dealership and see if there is a pcm update. The dealership said there probably is but can't tell me until the computer is hooked up to it. (Of course there is a charge when it's hooked up) again.. whatever.. I just want it fixed. The truck is scheduled to go in next Wednesday for that. If that doesn't fix it, my mechanic said cam phasers possibly bUT still not sure for sure..
Ford Super Duty (1999-2016) :: 2006 F250 Misfire - Coolant In Spark Plug Well #8?
I have a 2006 F250 5.4L. I was getting a noticeable misfire after not driving the truck for a while. Mode 6 revealed that cylinder #8 was misfiring.
I took off the coil/boot and there was coolant on the tip of the boot and some at the bottom of the spark plug well.
I cleaned everything up and put everything back together and that took care of that problem when I started the car. I also stuck a wad of paper towel by the intake manifold nearest spark plug number 8 and tightened the manifold bolts down a little. Some of them were not as tight as others.
I went back today and started the vehicle and it has the same problem again!
I took a look at the paper towel and it was totally dry! There is no coolant around the top of the spark plug well - only in the bottom of it. Where is this coolant even coming from? There are no coolant lines near cylinder #8. Is this a head gasket leak?
I have taken a look at the head gasket and that doesn't seem possible since the head gasket does not seal around the spark plug well at all as far as I can tell.
Ford Super Duty (1999-2016) :: 2002 F250 V10 Rough Idle / Misfire Under Load
I have a 2002 F250 CCSB Lariat 4x4 with the Triton V10, I'm up to 232,000 miles so far and fairly happy with the old girl. Just this weekend, I noticed some hesitation when at idle and even more rough running when under slight load. The misfire/hesitation is worst when going up a slight hill, when the truck is accelerating at low RPMs.
I am getting zero trouble codes or freeze frame conditions on my scanner. What should be my order of diagnosis? Vacuum test at line from PCV to TB, COP test? EGR inspection? Plug inspection? Also, how do you test a coil if resistance is not a reliable method?
Ford Super Duty (1999-2016) :: 2007 F250 - Misfire While In OD And Going Up A Small Hill With Light Acceleration Around 45 To 55 Mph
I have been reading several past post regarding the misfire while in OD and going up a small hill with light acceleration around 45 to 55 mph. Everything points to the COP so I replaced it today. Still getting the code after 20 minutes of driving around. My truck shudders and looses power. I can either let up on the throttle or hammer down on it to eventually smooth it out and everything goes back to normal.
Check engine light flashed but didn't stay on. My scanner does report misfire on cylinder 7 (P0307). Haven't owned this truck very long so I don't know much of it's history except OASIS report shows nothing alarming. Guess next step is a new set of plugs.
Another first today, is the tachometer is stuck at 4500 rpm. Shut the truck off and let it sit for an hour, then went back to start and tach. acts like 4500 is the new zero and running engine at 1000 rpm now indicates 5500. 2007 F250 SD 5.4 ....
Ford Super Duty (1999-2016) :: 2003 5.4 F250 Head Gasket / Misfire Code On Cylinder 4?
After replacing most of the underside of my Super Duty, Complete front end, backing plates, brakes, rotors and shocks, I have a misfire code on cylinder #4. I replaced the plugs, cleaned the MAS and filter and rotated the coil to cylinder #1. Still have a misfire on #4 and noticed the coolant slightly low and some condensation on the oil cap. Could this be the intake gasket? My mechanic is away for 2 weeks and I think the price at the dealer will kill me. I have 63K on the truck, don't tow and plow mostly family members. It's getting a little rusty but is still in good shape.
View 13 RepliesFord Super Duty (1999-2016) :: 2006 F250 - Misfire / Stutter On Hard Acceleration Under Load
06 250 5.4 40k on it, usually when cold and accelerating engine will misfire and stutter and then continue accelerating. The wrench light will flash sometimes but it wont store a code. This used to be vague in occurrence but has now started to be more a common occurrence even when up to normal operating temps.It seems only to misfire /stutter on hard acceleration or towing/hauling heavy loads. The only answer I got from a mech would be to do a computer reflash, not sure why /how this would fix whats going on.
View 1 RepliesFord Super Duty (1999-2016) :: 2001 F350 - Misfire On Cylinder 3 And 4
I have a 2001 F 350 with a V10 it keeps coming back as a misfire on cylinder 3 and 4.. I replaced all of the coils and plugs and pigtails I have even swapped out the coil packs from side to side and I still keep coming back with the same code. The truck has a bad check around 1500 RPM with a load on the motor mainly doesn't in overdrive and first starting off...
View 14 RepliesFord Super Duty (1999-2016) :: 2001 - Misfire - Rough Idle - Shudder Around 3?
2001 f250 v10 6.8l runs a little rough at idle, low rpm is ok between 1700 and 3000 rpm but around 3 it starts to shudder while driving let off gas get back on its fine, new plugs 1,000 miles ago has throttle body spacer and cold air intake, stock everything else..
View 8 RepliesFord Super Duty (1999-2016) :: 2001 F250 - A/C Goes In And Out
Okay, so the truck is a 2001 F-250 Crew-Cab 7.3l PSD with about 300k on the clock. For a while now the A/C would start out okay when you started the truck and it would blow cold for about 10 minutes then it would start to fade away and get hot. Then later it might get cold again. You could turn the A/C off for a minute or so and turn it back on and it would be cold again.
Took it to a shop and they drained the system and recharged it and they couldn't find anything wrong with it. Well, it's still doing it. We were starting to thing maybe it was an electrical issue with the cold/hot switch on the dash until a recently noticed a pattern. If it had gone hot and I got heavy on the accelerator (revving above 2500 RPM), it would get cold and keep blowing cold for 3-5 minutes. So the trick to staying cool as of now is just to hammer down every few minutes.
I read the HVAC FAQs, and it seems like the issue maybe with a slipping compressor clutch. Sound right? Also if that's the issue, it says the solution is: Excessive A/C clutch gap due to clutch wear. Usually, the problem can be resolved by removing a shim from the clutch to bring the gap back into the desired .014-.030 gap. What exactly do I have to do? Where and what are these shims?
Ford Super Duty (1999-2016) :: 2001 F250 - 4x4 Won't Engage
My truck: 2001 F250 V8 Triton Automatic 4x4
Problem: 4x4 won't engage
Symptoms: No dash lights....nothing happens when I turn the 4x4 switch. When I start the truck I hear what sounds like a motor (transfer case motor maybe?) trying to switch (even though my dash switch is on 2WD)... It tries three times and stops.
What I've done: Checked fuses ...they appear ok to me
I don't have a maintenance manual yet ...
The 4x4 used to work up until about 2 weeks ago. Started having a hard time getting it to go into (and out of) 4x4 and then it just stopped all together.
Ford Super Duty (1999-2016) :: 2001 F250 V10 - Bad Oil Leak
I have been leaking oil on one of my work trucks. I do not know what the part is called or named. the leaks seems to be coming from above or behind a part that the driver side motor mount. As you can see in the image, the part has a sensor and a concave dip that runs along the middle of it. Well, I stuck my fingers behind that and it has a dip on the other side too which face up and that dip was puddled with oil. I need to know what that part is called or named or what is directly behind it that can be causing the leak. I hope its just a gasket and it is not cracked.
Part that is leaking behind. 2001 Ford F-250 Super Duty V10
Ford Super Duty (1999-2016) :: 2001 F250 - Bed Is Rusted
I have an 01 f250 superduty bed is rusted what is the difference on a 04 f350 superduty dually bed to mine? Are they finished under the dually fenders?
View 3 RepliesFord Super Duty (1999-2016) :: 2001 F250 Not Going Into Gear
Having trouble with the truck going into gear. It started by having to put the truck in first and manually shift until in drive, once it finally engaged and would drive normal. But now im having trouble with going into gear at all. What could be the issue????
View 8 RepliesFord Super Duty (1999-2016) :: 2001 F250 Will Not Crank?
2001, F250, Lariat, Super Duty, 7.3 engine with towing package.
It ran seemingly perfect when I parked it and it sat for maybe 10 days to 2 weeks and wouldn't crank. Battery is fine and fully charged. Glow plug heaters work OK. Engine spins really fast, almost like it had no compression. (Not sure though) Temperature in the 30's -50's. I did some research on line and decided to change the Cam Positioning Sensor (CPS). Didn't work, still won't crank. I originally tried my Cheap Harbor Freight OBDII . (Don't waste your money, IMO). What should I troubleshoot next/ or try.