What causes a car to shake

Posted by Bud92gsx, Mar 21, 2011

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  1. Bud92gsx

    Bud92gsx Supporting Member

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    Well unbalanced tires is one.

    Would tire pressure being too low cause a shaking under a certain mph?
     

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    My DSM:
    1992 Mitsubishi Eclipse GSX

    13.300 @ 102.400 MPH
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  2. 3kgt2nv

    3kgt2nv Supporting Member

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    earthquakes

    I would check to make sure all the lugnuts are tightened, also check that a caliper isnt hanging up
     
  3. Absit

    Absit Proven Member

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    Just a few dozen things..
    Low tire pressure isn't one of them unless they were low for a while and developed a flat spot.
     
  4. Guilty1s

    Guilty1s Proven Member

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    Wheel Bearings
    Tierods
    Broken Belt in tire
    Allignment
     
  5. yepes281

    yepes281 Proven Member

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    He knows
     
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  6. rlacasse1

    rlacasse1 Proven Member

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    Under a certain mph? Is this happening when you are stopping?

    If it is then more than likely your brake rotors are shot and will need to be shaved or replaced, and new brake pads put on.
     
  7. Quicksilver1695

    Quicksilver1695 Proven Member

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    Pittsburgh roads causes major shaking. +1 on bad rotors and wheel bearings.
     
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  8. Bud92gsx

    Bud92gsx Supporting Member

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    under 50 mhp and no not while stopping..

    Im thinking it low tires pressure, cus they were low all winter..But I'm taking off in the morning and gonna stop and air them up, and i bet that will help..ALso putting my stock wheels back on probly wensday..I know there good n balanced..
     
    My DSM:
    1992 Mitsubishi Eclipse GSX

    13.300 @ 102.400 MPH
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  9. rlacasse1

    rlacasse1 Proven Member

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    I doubt just the low pressure will cause it. Now the low pressure may have caused them to wear weird and now they are just jacked. But Just having low pressure won't make them cause a shake.
     
  10. Juanpa

    Juanpa Proven Member

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    do you drive daily on these tires? is it really cold where you are?
     
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  11. Bud92gsx

    Bud92gsx Supporting Member

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    Well lets just hope it's low tire pressure, cause before winter she never shaked at all..and the tires were really low all winter..

    Not really cold..I can see grass so it's warming up..but 40's upper 40's lately..
     
    My DSM:
    1992 Mitsubishi Eclipse GSX

    13.300 @ 102.400 MPH
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  12. 98mitsubishigst

    98mitsubishigst Proven Member

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    Why would you ask us what we think it could be if you think you know its low tire pressure... :p Sheetz or other gas stations have free or 50 cent air... Go do it now..

    But my .02 its prob not low tire pressure..

    Wheel shaking at high speeds could be alignment..
    Wheel thuds and some shaking could be tie rods and wheel bearings..

    Many different things...
     
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  13. Bud92gsx

    Bud92gsx Supporting Member

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    Nope no thuds..and it only shakes over 30 and under 55..otherwise it good to go.I'll pressurize the tires and see if that helps at least..
     
    My DSM:
    1992 Mitsubishi Eclipse GSX

    13.300 @ 102.400 MPH
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  14. 7naYRu7_rs

    7naYRu7_rs Proven Member

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    sounds like bad belts, check the tire for abnormalities by running your hand across the contact surface see if you can see bumps, if so then its a broken belt
     
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  15. knochgoon24

    knochgoon24 DSM Wiseman

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    Most of the suspension system can cause shaking when it wears out.

    Check:
    -Ball joints
    -Tie rod ends
    -Wheel bearings
    -Tires
    -Bushings
    -Alignment

    And I'd probably check them in that order.
     
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  16. Mark4g63t

    Mark4g63t Proven Member

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    motor mounts
     
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  17. 95TalonOwner

    95TalonOwner Proven Member

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    Bad u joints also.

    This kind of problem is really almost impossibly to diagnose over the internet.
     
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  18. So Cal 420a DSM

    So Cal 420a DSM Proven Member

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    Could be your motor and tranny mounts.
     
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  19. Bud92gsx

    Bud92gsx Supporting Member

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    FInd up the tires today, Id didn't really shake that bad till I hit 80mph, but it still wasn't that bad..Coullda ben the horrible after winter roads making sum of the problem..
     
    My DSM:
    1992 Mitsubishi Eclipse GSX

    13.300 @ 102.400 MPH
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  20. PanZero

    PanZero Proven Member

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    My car shakes a bit between 2300-3000RPM, mostly on first and second gears. What could it be?
     
  21. Juanpa

    Juanpa Proven Member

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    Did you ever figure out what the problem was?
     
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  22. Bud92gsx

    Bud92gsx Supporting Member

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    Ya when I put on the stock wheels same problem..Im thinking now it's just unbalaced wheels..And with the newely painted wheels I can see them causing shake..Gonna get them balanced in the spring..

    Wheel bearings are good,, new tie rod on one side..Ball joints I don't really know how to check that..

    I'm gonna start with getting the tires balanced..And see what's up after that...
     
    My DSM:
    1992 Mitsubishi Eclipse GSX

    13.300 @ 102.400 MPH
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  23. Tfitch90

    Tfitch90 Proven Member

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    Low tire pressure causes wear on both sides of the tire as if u had negative and positive camber at the same time. (Strange example I know) When you get wear on the tires the balance of course is different so one thing changes another.
     
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  24. Bud92gsx

    Bud92gsx Supporting Member

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    Allignment is up to date has about 500 miles on the allingment...The new tires on my car..I'm just gonna get them balanced..That's cheap..I think I lost a weight on one of the tires in my avitar..
     
    My DSM:
    1992 Mitsubishi Eclipse GSX

    13.300 @ 102.400 MPH
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