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Ford F-Series Rough Idle/Vibration Problems

182 messages,  Last post on Mar 04, 2013 at 5:14 AM

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What is this discussion about? Ford F-150, Engine, Truck

Messages Page 15 of 19

#140 of 182 Yet another one... by bunedoxx

Feb 15, 2010 (12:39 am)

...and here is yet another one for the growing list of F-150s with vibration problems. We have a 2005 Ford F-150 FX4 Lariat edition. In between 55 - 65 mph it rides like there is a tire that is out of balance. We have since put new tires, lower ball joints, tie rods, U joints, spark plugs, alignments, and even had the drive shaft rebalanced trying to fix that mysterious "HOP". We took it to Ford only to have them start fixing irrelevant things and billing us for it. We were informed that the Cam shaft phasers need to be replaced (which is causing the engine to have a ticking noise to it).... We now are starting to experience that engine shake you have read about in previous posts. When it does decide to shake, it begins around 1100 rmp's or about 45 - 60 mph. It is at its worst when there is weight in the back, or towing. For those of you who have not experienced it yet, it will scare the s*** out of you when you do exp. it. The best way I can descibe it .....it feels like driving on rumble strips on the side of the road. Has anyone, anywhere come up with a solution to this? Any ideas? Whether or not your vehicle is warrantied...it is beyond me how Ford can get out of a problem that is becoming oh so common. As much as I LOVE our F-150.....im almost tempted to buy a Toyota at this point.........ALMOST. I would greatly appreciate it if ANYONE ANYWHERE had any insight to this problem that they can share.
 
...at wits end.
Bunedoxx

#141 of 182 2007,4.6 rough idle by truckcity

Feb 17, 2010 (7:27 pm)

I purchased my vehicle used, with 71,000 miles and it has a very bad rough idle and at first they claimed that it probably needed fuel injector service. I brought the truck in for service and after they hooked it up to there super duper diagnostic equipment, they determined that it needed a new electronic throttle-body. well that didn't fix the problem and so the spark plugs were replaced and that still didn't fix the problem, so now they're saying that the rough idle is a characteristic of the 4.6 engine, which is a bunch of bull. I have hired a lawyer and we'll probably go to court over this matter, but in the mean time, I have advised the majority of any potential Ford buyer to not buy a Ford product with the 4.6 engine. I will also print about a 1000 flyers and pass them out to the public,the flyer will say " 4.6 IS DEFECTIVE".

#142 of 182 4.6 Rough Idle? by bunedoxx

Feb 18, 2010 (9:26 pm)

Hey Truckcity......check your cam shaft phasers. We have an F-150 with the same problem, however ours is a 5.4, not a 4.6. Ours too has the rough idle (also a ticking nosie) .....we have been told several times by Ford that its the cam shaft phasers causing it (its slightly out of time), we just have not had the spare $ 1000.00 to get it fixed yet. I am unfamiliar with motors, but am learning automotive real quick (not by choice)....so if your 4.6 is anything like our 5.4, check your cam shaft phasers.

#143 of 182 cam phase adjuster/rough idle/ticking by ninjohnsu

Feb 18, 2010 (10:26 pm)

ford knows about this.
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.

#144 of 182 Re: Rough idle between 60 and 100 km/h [macisaas] by hotrodes

Mar 30, 2010 (12:08 pm)

Replying to: macisaas (Nov 13, 2008 4:39 pm)
I just purchased a 2005 Ford Expedition with the 5.4 Triton and 44,000 miles on it. Unfortunately the engine has a pretty rough idle while in gear at 500 RPM's, but does not shake when in park or neutral but I also note the RPM's are slightly higher at around 550. I also note that when in park if I rev the engine I get a pretty good shake at 1100 through 1500 RPM's. While driving around at 1100 RPM I seem to feel some vibration which I thought was rough roadway but seems like no matter what the roadway surface is I feel the vibration so I assume it's the rough engine I feel when reving it in park. The prior owner had an extended warranty so upon my questioning and before I bought the vehicle I wanted the local Ford dealer to run a complete engine diagnostic test which was done. According to the technician's notes they found everything on the engine and vehicle to be working fine and no codes appeared, the actual quote is "engine operating normal". After reviewing the diagnostic test I decided to buy this vehicle as it was in such nice physical condition. However now I think I have made a mistake as the more I drive it the more irritating this engine shake becomes. What is interesting is that during this process of locating a used Expedition I did test drive a few others. On every vehicle I did notice they all had varying degrees of rough idle, however I think the one I bought is the worst of them all. In discussing this with the prior owner he said that the rough idle developed over time and was not an overnight or immediate development. So I have tried to find someone who may know if this is something that can be fixed or if the Triton V8 is simply a moter that will never purr. My concern is that if it shakes this bad at 44,000 miles what will it be like at 100,000 miles? I do note that if I'm sitting at a stop light and it's shaking if I slightly rest my foot on the accelerator the RPM's come up about 50 and it goes away, is there any thought that the engine is just simply idling too low? Can that be changed?

#145 of 182 Eldenej by eldenej

Apr 10, 2010 (6:43 pm)

My new 2010 F-150 (now with 1400 miles driven) has had from day 1 a very noticable vibration and audible rumble (especially when the truck is cold) at engine speeds between 1220-1400 rpm. Though evident in all gears, this is most obvious in 1st and 2nd. The dealer's service department recognized the problem, but after their failure to find a cause, they declared it "normal." I asked that Ford's area tech rep take a look at it. He, too, acknowledged that "something is going on" but after failing to figure out just what, he, too, declared it"within acceptable limits." So what now? I have a truck I resent driving. Does this touch a responsive chord?

#146 of 182 Re: Eldenej [eldenej] by hotrodes

Apr 12, 2010 (1:27 pm)

Replying to: eldenej (Apr 10, 2010 6:43 pm)
Well I have searched for clues as to what could be causing the rough idle, from vaccum leaks, to dirty injectors, nothing solved the issue. Short of replacing the entire ignition part by part, I feel as though I am resigned to living with it or sell the car.
 
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.

#147 of 182 Vibration Issues by enphluence

Apr 22, 2010 (10:37 pm)

I have a 2005 Ford Expedition 5.4 3V with the same horrible vibration. I have a normal idle of around 500-600 and the truck vibrates badly at a stop while in drive. It is amazing that no one knows an answer to this problem. I took it into Ford and they wanted over 900.00 for new Motor Mounts....I naturally declined and inspected them when I got home, they looked brand new(no cracks, stretch marks or other odd wear). This truck has 82K on it, it has never towed anything and has had all maintenance done at Ford, including all oil changes with the Ford MC Oil Filter and Ford MC 5W-20 Semi Synthetic Oil. I am also beginning to experience Diesel Sound Tick(included is a weird clanking noise at about 900 RPM [this is only at 850-950 not before or after]). This really blows Ford could give a rats ass about customer care...this is probably the 7th Ford Vehicle I owned Myself and Wife Combined...I wrote a letter and they said Thanks and they cannot help? I wasn't asking for anything free, but if they issue a TSB regarding early make 05 5.4 need the upgraded lash adjusters, then you might think they would do something since the truck falls into that .....I am stuck , but also fed up with the Vibration and don't want to pass this problem onto an innocent person either, I'm just like anyone else, 2 kids with one on the way with zero budget, trying to get around in a truck that's built ford tough, which I cannot afford to fix. Does anyone know the reasoning behind this???? Please message, PM or email y9our issues because I am going to write Ford again including letters from here.

#148 of 182 Re: Vibration Issues [enphluence] by ninjohnsu

Apr 23, 2010 (5:42 am)

Replying to: enphluence (Apr 22, 2010 10:37 pm)
Try the cam-phase adjusters.
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?

#149 of 182 Re: Vibration Issues [ninjohnsu] by enphluence

Apr 23, 2010 (1:26 pm)

Replying to: ninjohnsu (Apr 23, 2010 5:42 am)
It is beginning to sound a bit like a diesel, but that is not really my concern it is a very strange rattle like sound at 550-650 RPM. Ford said its low oil pressure and the motor needs to be replaced....?? They also said prior that the motor mounts were shot, so don't really know what to say to that.
 
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

Messages Page 15 of 19

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