Question about 2007 Ford F-150 Harley Davidson

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VIBRATION AT IDLE AT RED LIGHT

I HAVE A 2007 F-150 4.6L,HAD DEALERSHIP LOOK AT IT AND COULDN'T FIND ANYTHING. IDLES ROUGH SITTING STILL IN DRIVE.
MY PREVIOUS 2003 4.6L NEVER HAD THIS PROBLEM. I KNOW THEY HAVE REDIGNED THE INTAKE ON THE NEWER MODELS BUT IT SHOULD NOT DO THIS, VERY AGGREVATING.
HELP
LARRY

Posted by Larry6591 on

  • 1 more comment 
  • Anonymous Sep 10, 2008

    I just purchased a 2008 F150 4.6 0n 8/26/08 and it vibrates and shudders when idling or sitting at a red light.
    Had it in at one dealer and was told muffler assembly needed replacing, So they replaced it and no difference.
    I requested an engineer from Ford to look at this and while waiting to see what the engineer says I have it at another dealer and waiting to see what they say.
    It is scheduled for the engineer to look at it 9/11/08
    This truck only has 510 miles on it and it has had this problem since day one.
    From what I am reading in the forums about this issue I think Ford has a big problem on their hands and ignoring the issue.

  • rrmann Oct 07, 2008

    I just bought an 06 4.6 and have the same problem. 22k miles and it vibrates through the seats at idle. Release the brake and it goes away. Also vibration in drive train around 45mph. I love the truck but this is ridiculous.

  • hotrod82 Oct 21, 2008

    I have a similar problem with a new 2008 F150 5.4. (Only 2000 miles.) But mine only vibrates when it is idling under load (in gear) with the AC compressor running. The vibration stops if I turn off the AC or shift into neutral. The vibration can be felt in the brake pedal, steering wheel and seats.

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Anonymous

I have the same problem with my 2008 4.6 F150 and I think Ford is ignoring the problem with these vehicles.

Posted on Sep 10, 2008

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