vibration when accelerating

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Apr 11, 2009 | 11:24 PM

Bob2626

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Joined: Jan 2009

Posts: 48

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From: Silverdale WA

vibration when accelerating

Hi all, I have been hanging around for some time, Live in Silverdale WA.
I own a F150 2004 5.4 triton. I pull a travel trailer that weighs less than 5k,
get 16,17 mpg not pulling and 7,8 pulling. does that sound about right?
Only problem noticed so far is a vibration when accelerating through 20 to 25 mph, took it to Ford but no help there. I now have 53k on it and love the ride and quiet interior.
Any thoughts on what is happening?
Bob

Apr 12, 2009 | 02:14 PM

ggwash21

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Joined: Aug 2003

Posts: 393

Likes: 2

Does it do it from stop when you turn almost like your hitting rumble strips on the highway?

Apr 13, 2009 | 11:18 AM

Bob2626

Thread Starter

Freshman User

Joined: Jan 2009

Posts: 48

Likes: 0

From: Silverdale WA

vibration when accelerating

gg
only noticed when accelerating,does feel kind of like rumble strip but not loud like when running on strip. More noticible when towing or hauling a heavy load.
Bob

Apr 13, 2009 | 03:43 PM

ggwash21

Senior User

Joined: Aug 2003

Posts: 393

Likes: 2

Do you have limited slip? If so your packing's are shot. I had this a few months back started out weak then got strong. In a parking lot turn circles while accelerating if it does it then, then you know its the limited slip packing. I have the TSB they had on this in another forum. I will post it when i find it.