Ford F-150 (2004-2008) :: Engine Missing / Vibration - Lack Of Power Intermittently
Aug 21, 2013
I just did my plugs in my 04 F150 5.4 The truck had a really bad miss, and I figured it was time for plugs. I broke all eight plugs which I expected as the plugs were in there since new and had 120 000 miles on them. Replaced with champion double platinum and I am not certain that was the best idea.
The truck is much better with the new plugs but still has a miss and a rough vibration. The truck seems to shake side to side at idle but smooths out during normal driving conditions. I have noticed that it seems to lack power intermittently if that makes any sense. Also, the check engine light was on for a while but I tracked that down to a broken wire in the evap system.
So I am thinking first step is to verify that the coils and boots were installed correctly. I have to see if we have the scope module for the Genisys at work. I am going to check for vacuum leaks as well. I just changed the fuel filter and no change. Is there anything else I should look at? Would cam phasers cause a rough idle and intermittent loss of power?
I don't drive this truck every day so I can take it apart to diagnose it further...
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I am perfectly capable of doing the repairs just short on time. the only shop in town is booked out 2 weeks, i need my truck sooner. 2006 f150 5.4v 3v 168k. I bought it with 150k and it was clean and ford maintained from the original owner. for a while it has been fluttering from time to time during acceleration. last week it started shuttering and missing around 45 trying to accel. no cel. I've read and actually fixed my freinds 08 but replacing cop and plugs. I bought motorcraft plugs and granatelli coils. friday morning it didn't want to start, cranked for a bit then locked up, as if hydrolocked.
I let it sit 5 minutes then cranked again and it fired but hesitating and missing like never before. anything passed 3k rpm it ran good no load. i had to drive it and it doesnt want to shift properly, revving way past normal shift points. smoking alot more than normal. hard to tell being 5 degrees out. finally got some codes. bank 2 sensor 1 stuck rich 4 times lean twice. Saturday i changed the oil plugs. and coils plugs were not original but were worn enough to visually see. all of the passenger plugs were a nice brown color. all of the driver side were jet black of carbon which follows the o2 cel. i reset it with my glorifed code buddy and it took a while if at all to come back. so im thinking not an o2 sensor????
It runs rough and will stall from time to time, I am to the point where i wont drive it. i will be replacing the camshaft sensors and vct solenoids tonight, and that one 2 if i have time. from what I've read phazers will cause a rough idle but once under load at least have some performance. when i accel it the rpms stall out before a shift i cant get anymore power, say wont got over 3200rpm. when chains and guides need to be replaced whats the symptoms??
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My new XE Vue 4cyl 164hp engine seems to struggle in highway situations. The 4 speed engine seem late in shifting from 4th gear to 3rd when asking for more speed as in a passing situation.
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I have a Ford F150 5.4L lariat 2 wheel drive with 78,000 miles on it. I just had new platinum plugs put in and a new air filter along with the routine LOF service. I had the plugs changed because I was experiencing some missing out at 50 MPH. The check engine light was not on. The mechanic said that one plug was definitely bad.
I have had the truck back for a week now and today while driving it I had the same missing out at 50MPH. The check engine light is not on. I had the cruise control on when it happened so now I am wondering if it could be related to the cruise control? What else It could be?
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Hey I've had this truck since 2009, it's a 2000 silverado 2500 (nonHD) extended cab long bed 4X4 with the cast iron head LQ4 (6.0) and 4L80E trans. It has almost all the options of the day...
I bought it with 77K it now has 138K and has had this problem since the day I got it... When accelerating it intermittently has no power from a stop. It has really high gears (like 3.42 or 3.73) as opposed to our farm truck which is an 05 2500HD which has 4.10's...
What happens is when I take off from stop, it will be a total dog off the line it doesn't matter if the tank is full or empty, truck is hot or cold, part throttle or WOT. Regardless it has no freaking acceleration. That is until you get to just before the shift point then the power comes back and it puts you in the back of your seat just like a 6.0 should. Then the truck shifts into second and has the normal amount of power.
I have had several local mechanics try to fix it, it has been given a tune up plugs wires filters etc. It has had the TB and MAF off and cleaned. Over the years the fuel pump and sending unit replaced etc. Over the years I have replaced the O2 sensors (with ac delco) both cats, IAC TPS crank positioning sensor, EGR and possibly others...
I have put a fuel pressure gauge on it but it never seems to have a problem when you have time to mess with it..
Possible other theories include but are not limited to: Fuel pressure regulator? some intermittent vacuum leak? partially collapsed lifter?
NO CEL, it runs smoothly though lately (last month or two) the idle is all over the place... tends to idle high... It has had a slight knock since I've owned it.. I had a theory that maybe the knock sensors were pulling power, but wouldn't that trigger a CEL?
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My dad is looking at a 2005 F150 2wd with the 4.6L V8 that a friend of his has. Its a 2wd XL, but has the cloth seats, the interior and body are excellent conditions. Its high mileage however, (210K), but the engine sounds good, but it has a miss and the check engine light is on. He took it about 6 months ago and had the oil changed, new belts and spark plugs, drove it very little and its been setting for sale for about 3 months.
When dad started it this evening, the engine was missing and the CEL light is on. His friend suggested he drive the truck for as long as he likes, (which he did today and he does like it) but I advised my dad to take it to a mechanic and have it checked out first, maybe even the dealer to have it checked out to be safe.... which he did today. He took it to a local Ford dealer today to get them to check it out they stated that it was a coil pack that is bad on the #2 cylinder.
They (dealer) also told him a bunch of other things that was "wrong" with it, but I think a lot of it was lies just to get him to get it fixed there and make money off of him. They said it needed an intake gasket (said it was leaking a little bit), they also said, battery and cables need to be cleaned, tranny service, coolant flush, etc, etc, etc.
Once outside the guy (tech) was bringing the truck out and my dad asked him the about that intake gasket and he acted like as if the dealer makes them act like things are a big deal, or saying they may not always need what they say. He told dad alot of those 4.6L's did that and it was really nothing to be concerned about, but I don't know.
I have a 95 Town Car with the 4.6L and am familiar with these cars, but I guess the 4.6L in these F150s are different beasts. I do know the plastic intakes on the 96+ models were issues.
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My 06 f150 5.4 3v has developed this miss in the last 1000 miles which is very annoying and fuel consuming. Its most noticeable at idle where the engine quivers and at highway rpms where it will start to vibrate when being slightly worked. I have already changed the cops and plugs, and there are no codes coming up.
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I have a 2005 FX4 with a 5.4L. I have noticed in the past 3 months that when I mash the go pedal hard the engine misses and there is a popping sound. My gas mileage has gone down 2-3 MPG.
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I bought 04 Lariat (5.4 3v around 100k miles, Roush Off Road side exit exhaust, DWV intake mod, SCT 3015 tuner).
The truck has had a miss on and off for around a month I've changed plugs and tested all the coils. Which cured the problem for around a week, the FPDM had some white stuff on back and soft spot but not ate through. The only Check Engine Lights have been bank 1 to lean (which went away as soon as it came. But yesterday and today I've got bank 2 to lean.
Below is a quick data log pull... The misses is about ready to ship her out if she don't straighten up..
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My truck trailer connection has no power to the + pin, called the Trailer Tow Battery Charge. I traced back to the fuses and relays and discovered the relay missing. Unbelievably Ford is having a hard time with this relay. They don't seem to be sure which one it is. My owner's manual says it is a Full ISO relay. But Ford doesn't like that description.
What can I use there? Is there any after market relay available that would fit. Napa said they don't have anything listed, and O'Reilly and Autozone look at me with a stupid expression. I also need one for the starter relay. Mine was replaced with a anti theft device that has a remote control. I want that removed so I need the realy.
All the relays appear to be the same. I plugged in the blower motor relay in the trailer tow charge position and got power to the + pin. But I need the blower motor. The Ford guy said that it might be the right one, but he couldn't be certain and if I plug it in and it doesn't work it's my loss.
This is for the 2006 F-150, 4.6l truck.
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Yesterday driving to work felt the engine missing, on the way home got a CEL pulled the code when I got home it was P0302, so I started with the easy and put a new coil pack, same issue, so I prayed and pulled the plug (it didn't break). Put a new plug and a second new coil pack (just to be sure, and yes I keep extras dang 5.4). cleared codes and started it this time got P0202 Ford - Injector Circuit Malfunction Cylinder 2, so I checked Ohms on #2 and it was 12.6, #1, 3, 5,6 all have 13 Ohms, didn't check #4, 7, or 8 because my big hands and the probes on my multi meter. Checked the wires on all of them and have 12 volts with key on, not running. I read another check to put blk in pin and red on pos batt terminal, and that it was supposed to go 12 to 0 off and on with engine running, All of mine went up to 14 volts and stayed no switching. Is there something I am missing to check before replacing the injector on #2?
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I have a weird intermittent problem. Sometimes when I start my explorer it will idle down and die immediately, I restart and it will idle about 400-600 really rough, sounds like it is missing. When I drive it it is jerky and the acceleration is sluggish but after I get it up to about 20 mph it clears out and then drives and idles fine until I shut it down. Plus these things only happen about every third time (on average) that I drive it. Lastly it's not giving me any codes. What this could be?
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I bought an Elantra Gls 2013 automatic 4 doors approx 6 months ago. I have 2 issues with it ....
1- there are lack of power/acceleration issues when driving at speeds between 60 kms/hr and 80 kms/hr. If I drive at 80 kms/hr for awhile and have to slow down like say 60 or 55 kms/hr and need to reaccelerate again, the car seems to lose all its momentum. It's like the automatic transmission didn't downshift and is still in 6th gear at 1500 rpms when I slowed down to 55 kms/hr and ready to reaccelerate. I try to accelerate slowly and it's like there's an air bubble underneath the gas pedal (or resistance). I really have to step on the gas harder so the rpms will go to 2500 and then the car really picks up. It's not a steady regular acceleration....???
2- There's this vibration like feeling on the gas pedal and around driver side floor when the rpm reaches approx 2500 ( when the transmission shifts gears ). I can deal with the noisy engine but when you also feel the vibration / like metal when the car reaches 2500 rpms, it is really really annoying.
Is this common?
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on my 04 supercab f150. one moment door locks work, the next nothing. started this weekend. its a bone stock truck with 128000 miles. sometimes work sometimes don't. have wiggled harness and connections outside the door. worked fine, pulled it out of the shop and parked it now not working again.
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I have a 99 f450 with a 7.3. Here lately it has been "missing" when driving or idling, but only every now and then. When driving down the road it will start bucking and boiling black smoke out then the ses light will come on and like turning a switch everything clears up and it acts and drives normal.
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I have a 2004 f350 with a 03 bullet proofed motor. The truck did not have any power and the turbo wouldn't support until I put a new vgt solenoid in and it ran great for about 3 miles... Stalled doing 65 kinda lacked power while accelerating but got up to speed quick. I pulled over and no start. It is running error code kam on pcm from disconnecting batteries but could this cause the stall and no start? Or should I be looking into icp sensor?
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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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I drive an 08 f-350 with 120k no tune or deletes..(yet). I was driving home yesterday when I all of a sudden I have a lack and power. I then notice i have no boost at all. I heard an exhaust leak and instantly checked my boots on inter-cooler pipes....
After farther inspection, the bolt fairy came and I am missing some bolts on my up pipe where it meets turbo. Is this break in vacuum system the reason I'm having no boost? What is easiest way to get to up pipes without removing cab? Where did the bolts go? I got to get this fixed because I need truck to get around town.
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I have a 2002 Passat 1.8T. It has been acting funny for a couple weeks now. It seems to be missing, then last night I took off from a four way stop and the engine light started to blink and the car was loosing power and not really taking any throttle. I managed to get it into a parking lot then I popped the hood and first noticed the inside of the turbo was lit up bright red. Now I dont know if this was cause from me trying to throttle it to get into the parking lot while it was loosing power or if my problem is the turbo or maybe an exhaust issue. I hooked up the diagnostic tool and the only thing read was P0303 for cylinder 3 so I dont know if the misfire was from the loosing power or if this is my issue.
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1994 Toyota pickup... Engine misses intermittently both at idle and throughout rpm range. Cap and rotor clean,plugs read nice light brown fuel burn color- would injector cleaner in gas work.....
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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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