Ford F-150 (2004-2008) :: Engine Vibration / Miss At Idle - Slight Hesitation During Acceleration


May 10, 2016

I posted a while back about my 04 5.4 having an issue at idle. I did all the normal things like replace coil, spark plug, etc etc. No change to the issue. It still acts as though it's misfiring on a cylinder and I get codes P0306 and P0316. Finally took it to ford and had a diagnostic check ran. Everything on the top end was in working order. The tech even put a known working coil on 6 and nothing changed. I was told that it's either an intake or valve issue on that cylinder. But no definite answer to problem.

Fast forward to yesterday. I got a wild hair at lunch and went out and started truck. Pulled injector plug off of 6. No change to the way it was running. I did the same for 5, 7, 8, 1, and 2. All of which made a big difference in the way it ran. It was obviously misfiring with no fuel to cylinder. This gave me the idea to swap 5 and 6 when I got home to see if the issue followed the injector from 6. I did NOT. I pulled the plug on 5 and got the obvious change in the way it ran. So there is definitely something going on at cylinder 6 that I cannot figure out.

PCM, bad intake, bad valve? I'm not rich so a trip to ford for repair is gonna have to wait. Truck seems to run fine when driving except for slight hesitation during acceleration.

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Ford F-150 - 1997-2003 :: Slight Miss / Rough Idle - Hesitation Or Stumble On Acceleration

2003 F150 5.4 72852 miles

I have a Rough Idle & sometimes a hesitation or stumble on acceleration. I cleaned the MAF & IAC motor & Air & Fuel Filters are new. I got a 20890 scanner & ran test 6 53 as suggested in many posts by BlueGrass. Here are My results & what They Convert to.

1 00F5 .3675
2 0051 .1215
3 0000
4 0000
5 00A3 .2445
6 0000
7 0000
8 0000

I'm guessing the cop's are ok & probably need plugs? I was hoping to just swap a coil. Too cold to do plugs & truck won't fit in my garage.

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Ford F-150 (2004-2008) :: Slight Miss / Hesitation - Power Loss When Driving Constant At 25 - 30 MPH Occasionally

Had this truck a few years now, and it has always had a slight miss/hesitation and maybe a few codes. The timing chain skipped a tooth and the truck was down for about a year. I have 4 other trucks, so it wasn't a big deal. I finally had time to put a new oil pump, chains, guides, tensioners, phasers etc. The truck actually runs very well and quiet. But, now misses far more than I remember it doing.

When driving in town constant at 25-30 mph occasionally it will loose power for a brief moment(<1 second) and then be fine, the security light on the dash turns on for a few seconds. It drives at 55-65 just fine, unless I am going up a hill or something else increasing the load.

2004 5.4 3v 2wd
CEL-
P0453 (fuel tank pressure issue)
P0351 (ignition coil a primary/secondary circuit malfunction)
P0356 (ignition coil f primary/secondary circuit malfunction)

The coil packs are new, and I have injectors on order. Also found this thing on the back of the motor, it connects to the fuel rail on the drivers side. Where it should go. I looked on my other trucks. But my other 04-4wd has a box by the battery it connects to, but mine doesn't have any of that stuff. And my 08 doesn't have anything like this at all.

And a pix of the truck in question.

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Golf IV R32 :: Rough Idle With Slight Miss Under Acceleration

Woke up to go to work and it started up with a rough idle, got a block down the road and it had a slight miss under acceleration. Guessing its a bad coil, I've got a spare featured I'd play I I mini miny moe when I get home unless.

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Ford F-150 (2004-2008) :: Slight Vibration At Idle / Fluid In Power Steering Reservoir Shaking Back And Forth

My truck had a slight vibration at idle today and what i noticed the most was i was looking at the top of the motor and i noticed that the fluid in the power steering reservoir was shaking back and forth like i was shaking the container. Is this from the vibration or is the power steering system vibrating. I have had this truck for two weeks and it has 135k on it. It is the 5.4 motor...

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Ford F-150 (2004-2008) :: Slight Miss After Truck Is Up To Operating Temperature

I have a 2004 f150 with 135000 miles. Bought it a few months ago. I notice after the truck is up to operating temperature it seems to have a slight miss, you can kind of feel it when sitting in the truck. Cant really hear it. Outside the truck I am hearing a ticking sound. I have changed the spark plugs on the passenger side, because that's where the ticking sound was coming from.

Come to find out the last spark plug in the back was finger loose. Got them changed, on that side. Still have the miss after warmed up along with the ticking. Few weeks fast forward I put all 8 new COP on. Same results. I also have changed the oil and filter both with Motorcraft. Where I could look? I also have a 1 year unlimited mile power-train warranty.

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Ford F-150 (2004-2008) :: 4.6L Engine Hesitation And Rough Idle

I have a 2008 Ford F150 4.6L and its been broken down in our shop for quite some time now. It started acting funny when I could not get the truck to do over 80kmh. Slow acceleration, and a horrible shaking when it idled. Eventually it was undriveable since I could go above 50kmh anymore. From looking online we replaced the plugs and coils. We removed the intake to find the gaskets were shot so coolant was leaking into the spark plug tubes which could've been the cause of a misfire. Fixed that. Still the same. We replaced the egr valve and dpfe sensor because we keep getting the P0402 excessive egr flow code. Still no luck. My dad is a journeyman hes just not too familiar with newer trucks.

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Camry :: 2007 2GR-FE Check Engine Light On - Slight Miss At Idle

Im a newbie to the Camry's. Picked up from a relative a 07 Camry for $5k. It has 103K on it.

It has an issue to where it has some codes and the check engine light on with P0018, P0019, P0300, P0302, P0306 codes. They just all cam eup al lof a sudden while driving. Slight miss at idle which is the misfire codes but I can't pinpoint the issue for the P0018 and P0019 codes.

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Ford 6.0L Power Stroke Diesel :: Hesitation / Miss During Acceleration

My truck is developing a hesitation or a miss when accelerating. It only does it in the beginning of accelerating like when just starting off from a stop. Seems like its more noticeable with the more I get on it. If that makes any sense. When just lightly accelerating it doesn't do it, like going slow through town from light to light. But when I give it more is when I feel it. It seems like it only does it before the turbo kicks in and it puts out a little smoke too only before turbo kick in. After that it runs good with no noticeable miss or anything. WOT runs feel good after it clears up. Its just when first starting out with anymore that 1/4 throttle I can feel it.

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Bmw - 335 :: Slight Hesitation And Noticeable Reduction Is Fuel Mileage / Miss In Cylinders

I have a mysterious problem with the BMW 335d concerning the engine. The dealer detected a "miss" in the cylinders based on the check engine light, but there is no real drive problem. However, I have noticed a slight hesitation and noticeable reduction is fuel mileage. They don't really know what it is but suggested replacing the fuel injectors, in case that is the problem. And if not, maybe it needs cylinder head replacement. That seemed to be a rather expensive (for me) way to diagnose the problem. I can't believe that BMW somewhere has seen this problem before.

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Ford 6.0L Power Stroke Diesel :: 2004 F250 - Slight Miss / Rough Idle / Loss Of Power

I have a 2004 Ford F250 with 174,000 miles the truck has a slight miss a rough idle one hot or pulling I have 2 codes nut no light when I go into the ford oem feature in my scanner a PO 272 and a PO404 .. Where to start?

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Ford F-150 (2004-2008) :: Miss At Idle - Got Codes P0351 / 356?

I bought a 04 FX-4 a couple months ago with 102k on it. Brought it back to selling dealer, they replaced #1/#6 coils, its ran great till this past week. Again it has stumbled a couple times this week. It only seems to have the miss at idle (comes and goes) take off from light, within 50 feet its running like a champ again. I cleared the codes (disconnect battery)and now it seems my idle is not steady, it fluctuates. Is the idle a product of the codes?

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Ford F-150 (2004-2008) :: Idle Vibration / Hum Coming From The Engine

When the truck is idling it has a weird vibration and their is a hum that comes from the engine. It then clicks like my clutch fan disengages or engages and both go away. I have only noticed at stop signs and sitting in a parking lot. 2004 5.4L....

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Prius (2010-12) :: Slight Hesitation At Slight Acceleration Or Constant Speed

I have a 2010 with about 166k miles. I am getting a slight hesitation at slight acceleration or constant speed. It does not matter if it's on highway or freeway speeds. Now I am not sure if this in junction with me changing the PCV valve, cleaning the EGR pipe, or cleaning the TB for carbon recently. It started happening a week after it though.

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Ford F-150 (2004-2008) :: Hesitation At 40 - 60 Mph During Heavy Acceleration

Here's the story on my truck. Spits and sputters between 40-60 during heavy acceleration and on rare occasions will jerk/pop while at a steady speed. No engine or wrench lights. I thought it might be the fuel filter and changed that, it didn't work. I also ran two bottles (on 2 separate occasions) of Duralube extreme fuel system cleaner, that didn't work either. So, I took it to the Ford dealer for a diagnostic. They had a hard time getting it to act up but said it finally misfired on #8 and recommended replacing the ignition coil and plug. I did that, still have the same symptoms. So, I thought it might be the fuel injector and changed that. Still same symptoms and ZERO dummy lights.

After several YouTube videos, I thought it might be the TPS and got one. Before I changed that however, I cleaned the Mass Air Flow sensor, still same symptoms. I finally changed the TPS, but the engine wouldn't start or run at all, no warning lights yet. When I put the old TPS on, it would run. I unplugged the TPS and it still ran but very rough. Now the engine light IS on! Thinking I purchased a bad part, I took it back to O'Reilly's and they warrantied it out and gave me a new one. I had 19 PO codes. I changed the TPS again, and, it won't start or run at all. Put the old one on and it runs. They cleared the codes and told me they think it could be the ECM/PCM.

Why will a new TPS not work? I still have the same issue of hesitation @ 40-60 during hard acceleration. No hesitation during a moderate acceleration.

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Focus :: 2008 - Slight Vibration At Idle At About 700 RPM

I have a 2008 focus and at about 15000 miles started having a slight vibration at idle. Its idling at about 700rpm is that normal? It more annoying than anything. Took it to Ford and they just say its normal. What the problem could be? Should I replace the plugs?

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Ford F-150 (2004-2008) :: 2007 - Hesitation And No Power At Acceleration

What a year 2014 has been. I had a 2005 F250 6.0 that was stolen in March and totaled when found days later. My insurance gave me enough to pay off the loan and render me the obstacle of replacing it. I got my F250 pretty cheap so replacing it for the insurance pay out was non-existence. I ended buying a 2007 F150 EC 4X4 w/ the 5.4 and having 97,000 miles on it. Just as luck would have it, I had the F150 for about a week before the cam phasers went out. Luckily the warranty covered it enough to put in a new LKQ reman engine.

I got the truck back about 2 weeks ago and put 1,000 miles on it in a very gracious form. I have noticed since then that despite letting it warm up for 20 minutes, I could put the throttle on the floor and the outcome was very poor. It was almost as if I was attempting to pull a house down. I couldn't even get the tires to spin at all, not even on wet pavement. Now I know this is not my old F250 6.0 turbo diesel, but really, I expected more from a new reman engine! They used all components from the old engine except for new spark plugs and a fluid change. Why is this "new" reman engine so weak?

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Nissan - Altima :: 2010 - Slight Miss At 30 To 45 Mph Upon Acceleration

I purchased a 2010 2.5 Altima with 9K miles in 2011. After @ four months I noticed a slight miss at 30-45 mph upon acceleration. I told the dealership and they said it wasn't throwing a code. After two more visits I again complained about the miss. At this time the service person handed me a "Customer Satisfaction Bulletin" that explained that cars (Altimas, 2009- 2011 with my trans. and engine experience this "SURGE" as they called it AND that it is NORMAL.There is no way in hell that a auto maker would produce a car that does what my car does and consider it NORMAL. Buy the way, there is a "FIX" that was done but didn't work, that involved changing motor mounts and computer programming.

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Ford F-150 (2009-2014) :: 2013 - Slight Miss At Idle

I have a 2013 F150 4x4 with a 6.2 and it has a slight miss at idle. It's done this since new and over the 20kms it has now I've been given the round around on it from 2 different dealers. I'm told there is no code so they can't do anything. I'm thinking maybe a coil? Or perhaps injector?

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Ford F-150 (2004-2008) :: Rough Idle And Hard Miss Under Load - CEL Code P0306

2005 f150 5.4.

I have a slightly rough idle and can feel a miss at 1600 to 2000 RPM. Sometimes running about 65 MPH up a slight grade I can slowly press the gas pedal and the engine will begin to miss much worse, causing the truck to shake pretty bad. When it gets this bad it will slowly flash the CEL and I get a P0306 code (Cyl 6 missfire).

The truck has 148000 Miles on it and the plugs were replaced at approx 120000 by the dealer.

In the last week I have replaced the plug in cylinder 6 (looked ok) and have replaced all the COP's along with the fuel filter and the injector on #6.

I haven't been able to get it flash the CEL light or throw a code since replacing the COPs though and I am at a loss at to what to try next.

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Elantra HD (2006-10) :: 2008 - Slight Vibration During Idle

I just bought a 2008 Elantra SE with 26K miles. So far, I've really enjoyed it, except for, at times, it does vibrate somewhat during idle.

I took it to the nearest Hyundai dealer, and they clipped the throttle cables to the inside of the firewall. This did make some improvement, but I still feel vibration during idle when the engine is warm (doesn't seem to as long as RPMs are up). It's almost as if the idle is set a little too low.

Maybe this is just normal vibration? It's not too bad, just noticeable. Can idle in these cars be adjusted? It seems the car is too new to have clogged fuel injectors. Everything else about driving it feels great, acceleration, etc. Do you think using a higher octane gas would work?

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