Ford Super Duty (1999-2016) :: 5.4 Won't Run / Bad Miss With No CEL
Dec 7, 2013
My 5.4 had a bad miss several months back with no cel. It would barely climb hills it never even needed extra throttle on before (3rd gear, wide open, 35 mph, etc). Ford dealer ran a scan and it had two bad coils and plugs. I changed those and it ran much better, but still had a "pfft pfft" exhaust leak type sound at idle. I checked the exhaust studs and they were all good, so I wrote it off as just a normal exhaust leak.
Full throttle in 5th gear to maintain speed limit when normal throttle before was sufficient. I got home and parked it and it sat over night. I went to start it today and it died. Tried again, died again. It only stays running if I am pressing the gas and I hear a fluttering or air sound of some kind coming from the passenger's side of the engine. It doesn't cut out or miss like a bad coil or plugs, but like you choked off the air supply.
All plugs are still in place, exhaust studs look good, tried it with the air box unhooked to see if it got clogged, and going to check intake leak tomorrow...
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Got a 2001 F350 diesel auto, 295k miles.
It has miss when over 2000rpm. Below 2000 its smooth.
ICP has oil in sensor, ordered new one. Gonna change oil too.
CPS is new (not sure if its black or the other one). Starts idles and drives good otherwise.
Where should I look?
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2010 f250 cc 5.4 145000 miles. I bought it last fall have not drove it a lot. When using the cruise control and a load is added grade or hill in the roadway. It jerks hesitates or miss then cleans up and runs fine. When using the accelerator it does not do this. No codes.... Thinking about changing the plugs.
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I have a 2000 F350 cab and chassis 4X4 with V10 and a 5 speed manual (actually it's a 4 speed with overdrive). My problem is the engine seems to have a miss in it. When I first start it in the morning it usually runs good for 5+ miles till it warms up then if I am not pulling a load I can hear what sounds like a miss but the truck accelerates fine. If I am pulling a load I can also feel a slight steady consistent shudder and I can tell the truck doesn't have the power it should and the gas mileage SUCKS worse than it use to.
I ran a bottle of Lucas deep clean through a tank of fuel and that seemed to work a little but I will still encounter the problem sometime during the day. When the miss seems to be gone I can hear a very slight pinging noise when I accelerate or pull a hill with and/or with out a load. The pinging noise I hear sounds like an engine with a distributor that is getting to much spark advance if you have ever experienced that before.
I purchased this truck used several years ago and I don't know what the PO did but the check engine light is not coming on and it doesn't throw a code. I put 10 new ford coil packs on it about a year ago so I really don't think it's a coil pack, but I could be wrong. To me it sounds like maybe it an injector problem????? I know there are several sensors on this engine and I am thinking maybe a crank position sensor is not working right but I honestly don't know???? Is there a way to test this sensor?
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I have a 2000 F-250 V10 that misses (cylinder 10) at the idle, once you give it gas it runs correctly again. I am at a loss. I have replaced the plug, tried moving coils from one cylinder to another to see if it shifts the miss, and it has new injectors. What this could be?
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I know this is a common code and a common problem. I have had a buzz test and glow plug test done, no codes. Scanner code came up with P0275. I have read about injector change out, to O ring failure, to new EGR style. I have a 05, 6.0 SD SRW auto.
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I have a E350 5.4 with 200,000 miles and it ran great before winter, this spring I fire it up and it got a miss I drive it anyway it starts to clear up and now the 1289 code. Everything looks fine coolant engine temp. I wonder if you can bypass the Cylinder Head Temp sensor. I am thinking the engine management is causing the miss to cool the engine.
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I just purchased a 2003 F250 Super Duty with the 6.8L V10 It has really high miles on it as it was a landscaping companies fleet truck. I'm sure that it was pretty well serviced as it has 300K miles on it and it's still running pretty decent.
I picked up the truck and I have to get the smog done soon. It idles with what I can only describe as a slight miss and it runs and drives great. seems to have plenty of power for the miles that's on it.
There is no active CEL on but I scanned the OBDII system and found a P0171 Lean bank 1 code in the pending codes list of the scanner. I guess this year engine doesn't have an EGR Valve or DPFE sensor because I've looked high and low for it and there non existent on this engine.
I've checked for vacuum leaks by spraying brake cleaner or carb cleaner all over the place and it makes no difference and all the vacuum lines and connections look okay.
When it's running It does sound like a vacuum leak right behind the top of the plastic throttle body but I can't find it, I don't know if this big *** engine just sucks that much air or what.
Like I said I need to smog this thing soon and I don't want it to fail if it's missing or has another issue. The fuel injectors look new and one coil pack looks like it's a replacement...
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I have a 2003 f250 5.4 with a couple of bad valves and low compression and a dead miss because of it... I just bought what appears to be a 2001 5.4 from an f150... I am worried now this engine wont work and cannot find anything online that can tell me yes or no....
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Have an intermittent miss I can feel when driving 2006 F250 5.4 l 4x4 stick; Freeze frame from Cen-Tech 60794 (from Harbor Freight) scanner follows.
DTC CNT 0
DTC FRZF P 0352
FUEL SYS1 OL - FAULT?
FUEL SYS2 --
LOAD PCT 25.9
ELT (DEGREES F) 186
SHRTFT 1 0.0
[Code] ....
I can operate the scanner but what these ranges should be. What might be causing the miss? This scan shows 951 rpm, I was idling along in 1st in traffic, but I have also felt the miss at 75-80 mph (about 2300 rpm) on the Interstate and at other times, with light loads in the 1500- 2000 range in town.
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Question, my truck started to have a miss under normal acceleration, when I really get on it, it clears up? I also noticed a bad sulfer smell at idle. Im thinking the cat is possibly plugged? Truck had 172000ish on it, and the cat is original. I did do a big tune up this past fall, new plugs, coil packs, air and fuel filter. Should I put a new cat on it? And a new oxygen sensor?
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This last April I was towing my trailer back from camping approx 125 miles when I detected a loss of power and a slight miss. I managed to make it home. It wasn't until I made it home that the engine finally started coding. Miss on start, a couple of cylinders missing and output shaft speed sensor circuit failure. So naturally, I decided to do what I felt needed done anyways, change all coils and plugs. Oddly the problem got worse to the point where I almost didn't make it home after test driving it, it kept stalling out and was difficult to keep running.
After some research and advice from others, I started replacing some components; MAF sensor,IAC valve, output shaft speed sensor. Nothing. In fact now the truck wont move, I start it up it idles a little rough, but then I put it into gear and with in seconds she shuts her self down. I've replaced the fuel filter, checked the fuel pressure and it is in specs. I've now had it towed to two mechanics neither of which have any solution. They've put expensive computers up to it and still nothing. I really do not know what to do at this point. Lastly the only code that continues to come up is P0720, output shaft speed sensor circuit failure, I really miss my truck!
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I got an f-350 drw it is sluggish on take off feels like a miss. Higher speeds when you step on it. It seems o.k I have been told it could be a crank shaft positioning sensor any in put on this. I have changed the fuel filters, cleaned the e.g.r. valve and yes it was pretty clogged,air filter seems to be good. And 1 last thing for now where would c.s.p.s. be located...
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On a 2000 F-350 with 5.4 engine, where does the vacuum line enter the cab? I got a truck in with no vacuum signal to the heat controls, and it has a slight miss at idle. Both of these are signs of a vacuum leak, but i can not find the line going into the cab.
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One of the super coils busted while driving my 2002 F250 Super Duty. I drove it for less than 100 ft. before parking it. It made a rapid "check,check,check,check" sound, which I'm assuming was mainly the coil smacking against other parts while loose. It busted near the point where it screws into the motor. I felt like I lost some compression as it drove sluggishly once broken, although I only drove for a very short time. I also thought I may have smelt a slight burning scent, or maybe oil, but didn't smell anything once I got out of my truck. Any problems I should look forward to other than simply replacing this coil?
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So the other day i opened the door and heard a super loud clunk noise come from the door and when I turned the car on and pulled hte window down it wouldn't go down all the way, only about 75% of the way so I assumed like BMW cars the window motor died but oddly it continued to go up and down just now 100% down.
Then 3 days later when I came to drive the car again the window went down to the 75% mark and now its jammed there with no movement even if I tried to lift the window up myself. Usually a broken motor allows this to happen but since it isn't budging I am wondering if its an electrical issue with the power window button more than the motor?
I say this because when i try to lower the passenger window from the driver side it works than out of no where on the 3rd time it wont move at all than 5 minutes later it will move or if it doesn't move I just go and pull the window down from the passenger side then I come to the driver side and try it and it works again than it'll stop again. So maybe its the power window control buttons on the drivers side that's failing?
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I have a 2016 F250 6.2 XLT CC 4X4 that is mostly stock, except I did put on 18x9 wheels and LT275/70/18 Cooper ST MAXX tires. I have noticed recently on hwy driving and even in town driving, that the passenger seat rattles/vibrates quite loudly. Obviously if there is someone setting in the seat, it is just fine.
Is this a common issue? Is there a quick fix (tightening a couple bolts or replacing a couple clips?) Or should I take this back to the dealer for warranty?
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New floor mats. My truck is going to be 10yr old and has the original King Ranch floor mats. I want some heavy duty rubber ones that will fit around my manual transfer case lever. I ordered the Weathertech digital fit liners and I am not happy with them so they are headed back tomorrow. They have a heavy duty all weather mat but not sure how it will work with my shift lever on the floor. Husky liners/mats look nice and heavy duty but won't accommodate the floor lever.
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Is there a steering stabilizer for a 92 Ford F-250 custom 2wd? and what's the difference between a f250 custom and a f250 heavy duty?
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I'm thinking of doing a dash swap on my 99 super duty to the 2008 super duty dash, steering wheel, etc. I know the od in my truck is mechanical and in the new one its electronical is it possible to swap without having to redue the whole electrical system and computer? Is the steering wheel going to line up and the ducting? How should i approach the wiring?
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