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Check my 7-26-08 post about the vibration in all 5.4 Triton engines from1300 to 1800 rpms when revving in park or driving at 70mph in o.d. It is a common problem in all 5.4 Triton engines from 2005 ,06,07, & 08 per ford Engineer. Why hasnt been diagnosed!!! I am going to the Ca. Bureau of Auto Repair and any other Customer complaint service I can find.
It is NOT tires, IT is NOT any thing but an egredious engine shake at that rpm range of 1300 to 1800 rpms when sitting in Park or driving that rpm range=70mph! It has gotten worse at 50,000 mi. I have identified 7 exact same problems in same 5.4 engines!! Ford Dealers are totally in wonder as FORD will not divulge the problem with their head in the sand. It will be a huge RECALL! They call it NORMAL !! B>S!! Class action lawsuit????? Anyone let me know . We have an attorney!!! :mad: :lemon:
I even had a guy at a gas staion walk up to me and asked me if I liked my truck. I told him about the vibrations and he is having the same problem at THE SAME dealership.
Look forward to hearing from you. Chad
Don't believe the techs when they tell you bad coils will throw a code. They will ONLY if they have continuous misfires.
Intermittent misfires won't throw a code. If you have anywhere near 100k miles on the truck, you need new plugs AND coils.
Do a search on ebay, you can find them for around $100 for a full set, vs $45 each at the dealer. Get Autolite plugs at the local parts store.
Changing the plugs/coils yourself will require patience and about 2.5 hours. Use dielectric grease on the boots.
Cheers.
- tire balance
- a worn shock
- ball joints
- remaining front end components
You will find one of those will be out of spec.
kcram - Pickups Host
We also drove 3 more F-150 2008 an 2009 and they were worse than ours.
Ford now will not do any more to fix the problem.
Have you thought anymore about a class action suit? Our Service manager said he will support us with documentation.
I have an '04 F150 4.6L with almost 70K miles that has a rough idle while sitting still, and has intermittent (though frequent) misses while lightly accelerating and then after I have leveled off to maintain a constant speed.
It is getting a little worse each day.
I had it hooked up to a diagnostic machine at a local auto parts store that read a misfire on cyclinder 2.
I had the fuel system professionally cleaned, air filter changed, oil changed, and it still is doing it.
I was just wondering if you got your problem fixed because it sounds the same as mine.
Thanks!
Transmission also slips on hills at 20k they said nothing is wrong. I love fords but this may be my last.
f-150 2005 lariat.
Thanks for any help.
Thanks.
There is no external leaking, no white smoke from the tailpipe, no rough idle or shaking during startup or normal driving. The only indication of loss is the coolant level in the reservoir.
The truck has been to two separate shops - one inde the other a Ford dealer - and neither can figure it out. It's in a Ford shop today in fact. Both have tried to pressure test the system with cold and hot engine with no result.
I seem to recall that early 4.2 V6 problems like mine were intake gaskets or head gaskets developing a small crack, allowing leaking when the engine got hot, and a trickle of coolant to burn off.
Anyone have any info on this problem? Since the truck is 11 years old, ya think it is worth the cash it will probably take to fix it, or should I just carry a gallon of anti-freeze and check the level often?
Any answers will be appreciated.
I was hoping there was a product that worked to seal without a teardown and new gaskets. Had considered Barrs Leak, but as I remember, it only works on pinholes in radiator.
The folks on these forums are a wealth of great info!
Now when you hit little bumps in the road the wheels don't jump or shake. It is extremely smooth on the highway. Drives like a new vehicle should. By the way my truck only has 7,500 miles on it. By the way new factory shocks would be of little value because they do the same thing as what you are taking off. I hope this helps you, it certainly helped me.
Wesleym
Please focus on certain areas when these types of quirks develop.
550 rpms - shake (not miss), 1100 rpms - shake, 2200 rpms - shake.
Notice the rpms DOUBLE each time? Dead give away !
I can just about promise it is there at 4400 too.
This is an imbalance issue. Thrown Torque Convertor weight?
I've built racing and industrial, gas and diesel engines for 40 years.
I have a 85% all Light duty Ford Truck Fleet - nation wide
Now how to get the factory on board with recognizing this and fixing it?
Good Luck........
Terry
They kept if for two days and took apart fuel injectors. then they replied with the truck is normal. I think their full of it and are protecting the other dealer.
But I did sit in another F-150 on the lot with a 5.4 and it did the same thing?
Prior to this I took it to my regular mechanic and he ran into the same problem in a Crown Victoria. The problem is in the Torque converter. sludge build up and it make the torque converter out of balance? I am also experiencing a loud lifter noise, and the truck sounds like a Diesel too?
In our case, we have a rich condition, this turned out to be a broken roller cam after almost 20 hours of diagnostics. It was actually my idea to remove the valve cover. Anyway, new cam, roller lifer on bank 1. Then we developed the occasional P0012 problem, replaced VCT out of pure frustration, maybe a bit better but still there. All the work has been done at a Ford dealer because of time and weather in Wisconsin.
Does anyone have any ideas. The truck has 90K and we started out doing a simple spark plug exchange and 100K tuneup, now $3000 later, this is nuts.
Suggestions welcome.
Regards,
Douglas
In our case, we have a rich condition, this turned out to be a broken roller cam after almost 20 hours of diagnostics. It was actually my idea to remove the valve cover. Anyway, new cam, roller lifer on bank 1. Then we developed the occasional P0012 problem, replaced VCT out of pure frustration, maybe a bit better but still there. All the work has been done at a Ford dealer because of time and weather in Wisconsin.
Does anyone have any ideas. The truck has 90K and we started out doing a simple spark plug exchange and 100K tuneup, now $3000 later, this is nuts.
Actually no one from Ford has suggested the PCM re-flash. I'm going to check into this.
Interestingly, this was not a problem before the tune-up plug change etc. Go figure.
Suggestions welcome.
Regards,
Douglas
...at wits end.
Bunedoxx
it is a technical service bulletin
TSB-06-19-8
The cam phase adjuster adjusts the gear on the cam.
also see
TSB#21049
THEY ALSO REPLACE THE LASH ADJUSTERS.
the kit dose both sides and you should do both sides
Ford quoted me about $1400
my mechanic was $750 to $1000
the parts kit was like $450 from ford through my mechanic.
I know Ford sells hundred's of thousands of vehicles with these engines, maybe we are just the unlucky few, or the only people who notice it and expect more from Ford, hence why Frod does nothing about it.
There is a TSB on this to replace with new ones TSB 06 19 08".
Search truck sounds like a diesel. Dose the truck sound like diesel after it warms up?
The car has 82K and the plugs have never been changed, but everyone says not necessary.
here are links to 2 videos I have of the car 1 is at normal idle and the other is when you stay at 550 RPM(the rattling/knocking noise)
At Idle
Knocking Noise 550RPM
At first i thought that maybe the exhaust was touching the undercarriage somewhere. but it's not.
The vibration is only there while driving, so i tested it out by putting the trans in neutral when the vibration starts at the 1200 RPM range & the vibration stopped.
Now this is making me think it is the drive shaft that is out of balance.
So I am going to get the drive shaft balanced & I will post the results here.
I am pretty sure that this is the problem. because if it wasn't a problem with balance, the vibration would be there all the time. the vibration is only there between 1200 - 1800 RPM & then its fine one I get through that rev range. so I tend to go through that rev range as fasts as I can because I cant stand the vibration & the fact that everyone takes notice of my car, it a bit embarrassing. thats my excuse for putting my foot down in second gear anyway : )
unfortunatly, I also have idle problems with my truck and cannot figure it out. I see alot of people have this problem.