The Vibration
New User
Joined: Oct 2004
Posts: 4
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From: Virginia
Vibration
Something interesting that I noticed recently. When I was going about 65, when the vibration was peaking, I rolled down one of the rear windows. The vibration, and noise of course, increased dramatically. Could this have to do with some aerodynamic problem. It literally made the truck (4X4 Supercrew) unstable. Just a thought. Has anyone else tried this?
New User
Joined: Sep 2004
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Rhymer 21, I know I have read about a similar issue in one of these vibration forums. I have been looking and have not found it yet, but I will keep trying. I am lucky enough to not have the problem, after exchanging my first truck. However, when I went to exchange the truck, I had to drive three trucks to find one that does not have the vibration. It is a real issue and I wish Ford would do something.
New User
Joined: Oct 2004
Posts: 21
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From: new hampshire
It gets worse...
All right I know I've just kind of stuck my nose into a conversation but I needed to talk to people with the same problem... BUT THIS LAST ADDITION TO THE (free and complimentary) VIBE IS UNBELIEVABLE. I have read that some of you have been unhappy with noise and vibration from the rear windows being open. I have kind of written this off as general bad feelings about the truck and ford making people find fault in everything, I would expect road noise from highway driving. BOY WAS I WRONG. I was driving on the highway with my 4 year old daughter in her car seat in the back and she rolled down one of those nice "they go all the way down unlike the competitors part way down" rear windows. The truck began to shake so much that she started crying. It scared the S*#t out of me. All of a sudden the thing starts to SHAKE and my daughter starts crying I didn't know what happened at first. I wonder what is going to happen this weekend when I am towing the snowmobile trailer and one of my friends rolls down the window to smoke...
Senior User
Joined: Jun 2003
Posts: 148
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From: Street, MD
I had a Toyota Sienna van - if you opened the sunroof the same thing would happen. Once you opened the rear windows it would go away. My truck does it too depending on the configuration of windows I have open. This is purely aerodynamic - it is the only time I notice the vibe.
New User
Joined: Oct 2004
Posts: 21
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From: new hampshire
I have the vibe anyhow. They replaced my drive shaft and it did get better but not gone and now its back. with the window open its not just worse its to coin a term used by another member unstable.
New User
Joined: Oct 2004
Posts: 4
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From: Virginia
Wind noise
Just to clarify some. In my case, when the window is down and all hell breaks loose, it seems to be at the same frequency as the original vibration. With my background in acoustics and RADAR, the term that comes to mind is that the original frequency/vibration is "excited" when the window is rolled down. That would lead me to believe that the original problem (again, in my case) MAY have something to do with aerodynamics. I've been doing some testing on my own at different speeds and such and it is a repeatable event. The search continues.......
New User
Joined: Oct 2004
Posts: 21
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From: new hampshire
Rhymer21 THANK YOU. This is exactly what I believe. I hate throwing the "I am an" into a conversation as I am not trying to appear as a know it all. BUT I am an electrical engineer, power supply design specifically which is 90% analog. I to think the frequency of the vibration coincides with or is a harmonic of what I am feeling/hearing with the rear window down. If the truck is substantially vibrating at a specific frequency and is "excited" by a pertibation of that frequency it will oscillate at that frequency. I think all of the liquid filled and soft body mounts amplify the condition. I have considered taking an oscope and an excelerometer and transducer and plot the vibe under different conditions to get a better feel (no pun intended)
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Junior User
Joined: Sep 2004
Posts: 62
Likes: 0
I posted this a while ago
Vibration causing a reverberation in Cab ?
I believe what's going on is between 40 and 60 I can feel a mechanical vibration, seems worse with a balanced throttle, I believe that this is setting up a resonance or reverberation in the cab when the windows are down, and You get what sounds like a subwoofer going off in the cab, also You can feel a vibration in the steering wheel and to a smaller effect in the seat.. ocasionally I get a simaler vibration just before stopping.
the truck has less than 700 miles on it and most of that was highway where this problem doesn't occur, so I'm still nailing it down when it does it and when it doesn't..
I was at the dealer and they were trying to say that it was wind buffeting, and that they were going to contact a problem resolving specialist or something like that, plus a couple of engineers.
Chris
04 FX4 150
build date 8/04
Reg Cab
Flareside
5.4
3.73 LS
18" 275/65 BFG
I believe what's going on is between 40 and 60 I can feel a mechanical vibration, seems worse with a balanced throttle, I believe that this is setting up a resonance or reverberation in the cab when the windows are down, and You get what sounds like a subwoofer going off in the cab, also You can feel a vibration in the steering wheel and to a smaller effect in the seat.. ocasionally I get a simaler vibration just before stopping.
the truck has less than 700 miles on it and most of that was highway where this problem doesn't occur, so I'm still nailing it down when it does it and when it doesn't..
I was at the dealer and they were trying to say that it was wind buffeting, and that they were going to contact a problem resolving specialist or something like that, plus a couple of engineers.
Chris
04 FX4 150
build date 8/04
Reg Cab
Flareside
5.4
3.73 LS
18" 275/65 BFG
Junior User
Joined: Oct 2004
Posts: 94
Likes: 0
Originally Posted by Labrador
Go back and read your DSB application. I had to sign a Georgia Lemon Law waver form. I give up my right to sue Ford if I used the DSB or Lemon Law but I could have used my state lemon law if the DSB ruled against me. I won anyway.
Last sentence on page 9. Also there is a bold print note at the bottom of that page that says the same thing.
Junior User
Joined: Oct 2004
Posts: 94
Likes: 0
Originally Posted by timp
All right I know I've just kind of stuck my nose into a conversation but I needed to talk to people with the same problem... BUT THIS LAST ADDITION TO THE (free and complimentary) VIBE IS UNBELIEVABLE. I have read that some of you have been unhappy with noise and vibration from the rear windows being open. I have kind of written this off as general bad feelings about the truck and ford making people find fault in everything, I would expect road noise from highway driving. BOY WAS I WRONG. I was driving on the highway with my 4 year old daughter in her car seat in the back and she rolled down one of those nice "they go all the way down unlike the competitors part way down" rear windows. The truck began to shake so much that she started crying. It scared the S*#t out of me. All of a sudden the thing starts to SHAKE and my daughter starts crying I didn't know what happened at first. I wonder what is going to happen this weekend when I am towing the snowmobile trailer and one of my friends rolls down the window to smoke...
Junior User
Joined: Oct 2004
Posts: 94
Likes: 0
Your Ford dealer is giving you the run around.
Originally Posted by 04FX4150
Vibration causing a reverberation in Cab ?
I believe what's going on is between 40 and 60 I can feel a mechanical vibration, seems worse with a balanced throttle, I believe that this is setting up a resonance or reverberation in the cab when the windows are down, and You get what sounds like a subwoofer going off in the cab, also You can feel a vibration in the steering wheel and to a smaller effect in the seat.. ocasionally I get a simaler vibration just before stopping.
the truck has less than 700 miles on it and most of that was highway where this problem doesn't occur, so I'm still nailing it down when it does it and when it doesn't..
I was at the dealer and they were trying to say that it was wind buffeting, and that they were going to contact a problem resolving specialist or something like that, plus a couple of engineers.
I believe what's going on is between 40 and 60 I can feel a mechanical vibration, seems worse with a balanced throttle, I believe that this is setting up a resonance or reverberation in the cab when the windows are down, and You get what sounds like a subwoofer going off in the cab, also You can feel a vibration in the steering wheel and to a smaller effect in the seat.. ocasionally I get a simaler vibration just before stopping.
the truck has less than 700 miles on it and most of that was highway where this problem doesn't occur, so I'm still nailing it down when it does it and when it doesn't..
I was at the dealer and they were trying to say that it was wind buffeting, and that they were going to contact a problem resolving specialist or something like that, plus a couple of engineers.
Your dealer knows you have a problem they just don't want to deal with it. Ask them if your truck is safe to drive.
Why is Ford still replacing driveshaft, wheel, tires, etc. when they know none of this solves the problem?
Junior User
Joined: Oct 2004
Posts: 94
Likes: 0
Originally Posted by timp
I got a different dealership to test drivr the vehicle with me and they saw the problem and made an appt to take the vehicle in. When I picked it up the diagnosis was "could not duplicate". I had them drive it with me again. I reproduced the problem quickly and easily when the tech took the wheel I explained it was prevalent on straight roads. He imediately took it onto a winding hilly road??? I got him to find a better test road and rather than trying to maintain speed with the pedal he mildly accelerated through and then coasted down past the speed range not seeing the problem. He then said it was operator induced???. This is the most frustrating process I have ever dealt with. At least this board is a place to vent to people who can relate.
The FSE drove my truck in a similar manner that your tech did. He didn't drive it where I asked him to and he didn't drive it long enough or with the cruise on like I had suggested. He had his mind made up about his decision before he even drove my truck. They know there is a problem and they just expect people to deal with it.
Senior User
Joined: Dec 2003
Posts: 101
Likes: 0
From: The South
Originally Posted by zeusdog
There is absolutely nothing in the DSB application about signing a Lemon Law waiver. However, it does state that "If you reget the Board's decision, you are free to seek remedies available under State or Federal law."
Last sentence on page 9. Also there is a bold print note at the bottom of that page that says the same thing.
Last sentence on page 9. Also there is a bold print note at the bottom of that page that says the same thing.
New User
Joined: Nov 2004
Posts: 1
Likes: 0
F150 Vibration when towing
We experience a bad viration 50-55mph when towing our Featherlight horse trialer with the F-150 2004. Dealer says it is a problem with the pinion angle to the Driveshaft changing with either a load or when towing. Says they will be a kit out the first of the year to correct the problem. No more detail than that.