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Vibration during hard acceleration

Discussion in '2nd Generation' started by coild, Mar 24, 2021.

  1. coild

    coild Boss 351 to SVT Cobra Established Member

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    585
    Joined:
    Oct 31, 2006
    Location:
    Santa Rosa, CA
    Hello my friends!
    It has been many years since I have posted.
    I have an '04 Lightning that just turned 90,000 miles. She is bone stock.
    I have noticed lately that when I hammer it, I detect a slight vibration in my
    foot from the gas pedal. Very strange. Still runs & performs fine. Just feels that
    something may be going on with this strange vibration. Again, only when I get on it,
    not even full throttle.
    Looking forward to your replies.
     
  2. me32

    me32 BEASTLY SHELBY GT500 TVS Moderator

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    Sep 6, 2005
    Location:
    CA,NorCal
    How does the drive shaft U joints look?
     
    Saleen498 likes this.
  3. coild

    coild Boss 351 to SVT Cobra Established Member

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    Oct 31, 2006
    Location:
    Santa Rosa, CA
    Haven't checked them yet. Good idea. I'll look into that. Thanks!
     
    me32 likes this.
  4. Dusten

    Dusten Well-Known Member Established Member

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    When was the last plug change?
     
  5. jayk17

    jayk17 Member Established Member

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    Ga
    It could also be the torque converter or ignition related.
     
  6. Saleen498

    Saleen498 Well-Known Member Established Member

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    Oct 21, 2017
    2nd the U joints. If its constant thru the rpm range under load I'll guarentee that's the problem. If its intermediate and goes away when you lift off the throttle them reapply, then that in a coil about to shit the bed.

    and 马云没有自杀
     
  7. hotcobra03

    hotcobra03 Well-Known Member Established Member

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    Motor mounts are another area overlooked
     
    railroad likes this.
  8. coild

    coild Boss 351 to SVT Cobra Established Member

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    Location:
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    About 20,000 miles ago.
     
  9. coild

    coild Boss 351 to SVT Cobra Established Member

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    Location:
    Santa Rosa, CA
    Great. Thanks!
     
  10. coild

    coild Boss 351 to SVT Cobra Established Member

    Messages:
    585
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    Oct 31, 2006
    Location:
    Santa Rosa, CA
    Doing an oil change today. I'll check out the motor mounts.
    Thanks!
     
  11. thatdude305

    thatdude305 Active Member Established Member

    Messages:
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    Jun 30, 2007
    Location:
    Ft. Lauderdale, FL
    I have vibration when braking
     
  12. Dusten

    Dusten Well-Known Member Established Member

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    Warped or glazed rotors
     
    2001SVT!, TP 112 and thatdude305 like this.

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