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Old Jan 1, 2009 | 07:33 PM
  #1  
mercman78's Avatar
mercman78
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Vibration

I Have A 2006 F150 Screw With 5.4 4x4.i Noticed On Long Uphill Grades,that At About 2200 Rpms At 50 Mph In 4th Gear That The Drive Train Seems To Vibrate.i Took It To The Dealer And Duplicated The Problem For Them.there Repair Was To "adjust" The Exhaust.i Still Feel This Vbration(in The Gas Pedel,steering Wheel And My A--!) And Have Taken It Back Again.but Now Thay Say There Is No Problem!!anybody Eles Have A Problem Like This?if So What Was The Fix.its Only In That Gear,speed And Rpm.as Soon As It Shifts Its Gone.thanks.
 
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Old Apr 14, 2009 | 01:57 PM
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Bob2626
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From: Silverdale WA
I have a f150 5.5 2wd, I have a vibration accelerating through 20 to 25 mph. Tow a trailer less than 5k and with a load in bed. not so noticeable when unloaded.
Dealer checked and found no fixes or reports on this problem, I now have 53k on the spedo it is a 2004
any help would be appreciated
Bob
 
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Old Apr 14, 2009 | 03:40 PM
  #3  
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ALLDATAdiy INFO
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Originally Posted by mercman78
I Have A 2006 F150 Screw With 5.4 4x4.i Noticed On Long Uphill Grades,that At About 2200 Rpms At 50 Mph In 4th Gear That The Drive Train Seems To Vibrate.i Took It To The Dealer And Duplicated The Problem For Them.there Repair Was To "adjust" The Exhaust.i Still Feel This Vbration(in The Gas Pedel,steering Wheel And My A--!) And Have Taken It Back Again.but Now Thay Say There Is No Problem!!anybody Eles Have A Problem Like This?if So What Was The Fix.its Only In That Gear,speed And Rpm.as Soon As It Shifts Its Gone.thanks.
ALLDATAdiy.com has a few TSB's about Vibrations at various speeds for your F150. Most of them start at the tires. Drive 20 miles at highway speeds. This will eliminate any flat spots on the tires from the vehicle sitting. After that look at balancing the tires. You may possibly have excessive runout.
 
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Old Apr 14, 2009 | 03:43 PM
  #4  
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ALLDATAdiy INFO
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Originally Posted by Bob2626
I have a f150 5.5 2wd, I have a vibration accelerating through 20 to 25 mph. Tow a trailer less than 5k and with a load in bed. not so noticeable when unloaded.
Dealer checked and found no fixes or reports on this problem, I now have 53k on the spedo it is a 2004
any help would be appreciated
Bob
Is your F150 stock height? It sounds like your driveline angles might be off when towing as well.
 
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Old Apr 14, 2009 | 07:32 PM
  #5  
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Bob2626
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From: Silverdale WA
vibration

Hi My f150 is stock height, noticed with different trailers and weights.using equalizer hitch.
Bob
 
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Old Apr 15, 2009 | 11:46 AM
  #6  
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ggwash21
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Do any of you have limited slip? Its worth checking. My truck had the same vibs loaded and very little unloaded ended up being limited slip packings. Works great now...
 
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