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Noises from within

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 88MudBeast, Mar 22, 2001.

  1. 88MudBeast

    88MudBeast Registered Member

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    well, about two days ago, the Blazer started making some verrry strange noises. First came a quiet clicking sound, then came the loud clicking sound, then the pulsating squieling, and finally the long squiel. It only does it when my car is moving, not at a stop. Also when i drive in reverse there is a clanking sound like someting is dragging on the ground....but there isnt. What the hell is wrong with my car. I took it to have all the fluids changed, and that didnt help. It sounds like it could be coming from the rear end...but im not sure. Let me know if you have a remote idea of what this could possibly be.
    Big Jake

    Drive it like you stole it!
     
  2. muddin4fun

    muddin4fun 3/4 ton status

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    I would start by checking the brake shoes in the rear (assuming that you have rear drum brakes) and work inward towards the diff. Is it a metalic click that you heard? There is a lot of things that can make weird noises back there, details would help.

    [​IMG]


    <A target="_blank" HREF=http://muddin4fun.coloradok5.com>http://muddin4fun.coloradok5.com</A>
     
  3. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    Check your driveshaft u-joints- the clicking(marbles dropping on glass) sound you heard to begin with is the same sound I heard when my u-joint started heading south. The louder it gets, the looser the u-joint is getting. I'm not sure about the squealing though..........



    <font color=red>PHOTO ALBUM-</font color=red> <A target="_blank" HREF=http://albums.photopoint.com/j/AlbumList?u=1289798>http://albums.photopoint.com/j/AlbumList?u=1289798</A>.......<font color=blue>TRUCK & HIKING PICS</font color=blue>
     
  4. jimmyjack

    jimmyjack 1/2 ton status

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    U joint? Does it vibrate/shudder? Anything like that? My transmission made a noise like that but it wouldn't move afterward. If its not a u joint check your brake drums, maybe some wire wrapped around your shoes.

    creepin' and crawlin'

    Jim
     
  5. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    Can you identify if its comming from the front or the rear?

    [​IMG]
     
  6. Chris Demartini

    Chris Demartini 1/2 ton status

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    <font color=blue>Squeling usually is wheel bearings. Jack the front up, grab a wheel at 12 and 6 o'clock and try to shake it. If its loose, dont even let it down on the wheels. Take it apart and hope the bearings arent seized to the spindle.

    Is your brake pedal pulsating with the noise? Your front rotors might be warped and contacting the wear indicator on your worn pads. Hope this helps.</font color=blue>

    [​IMG]
     
  7. 88MudBeast

    88MudBeast Registered Member

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    The clicking is definately a metallic clicking. I also know my u-joints need attention, i was about to take the truck in to have them replaced anyhow, they are really worn down, and loose. But its not just one click, its continuous, and slows down as the car does. There is no vibration or shuddering, but there is a small jerk when the car is put into gear, like there is a bit of daylight where the two parts of the u-joint connect...if i understand how the u-joint works. I cant identify if its coming from the rear end or not, i just know it sounds expensive. The break pedal is not pulasting with the noise. Thats about all i know really.
    Big Jake

    Drive it like you stole it!
     
  8. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    It really sounds like u-joints- the reason the clicking speeds up or slows down depending on the speed of the truck is because the driveshaft spins faster/slower and the u-joints rotate faster/slower. Same thing applies to putting her in gear- there's play in your driveshaft now. Get those babies repaired before you drop your driveshaft and have to get it balanced or replaced as well as fixing the u-joints.

    <font color=red>PHOTO ALBUM-</font color=red> <A target="_blank" HREF=http://albums.photopoint.com/j/AlbumList?u=1289798>http://albums.photopoint.com/j/AlbumList?u=1289798</A>.......<font color=blue>TRUCK & HIKING PICS</font color=blue>
     
  9. muddin4fun

    muddin4fun 3/4 ton status

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    I would get the u-joints replaced. You say they need them anyway. If the noise stops, great! If it continues, march on! At least you will know it's not the u-joint!

    [​IMG]


    <A target="_blank" HREF=http://muddin4fun.coloradok5.com>http://muddin4fun.coloradok5.com</A>
     
  10. jarheadk5

    jarheadk5 1/2 ton status

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    Have you checked the gear oil level in the rear axle? The squealing noise could be an axle, carrier, or pinion bearing screaming for oil.

    The metallic clicking sound?? Survey says... U-joints!

    [​IMG] Semper Maintenance!
     
  11. pr1aw

    pr1aw 1/2 ton status

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    I had the same kind of problem on my full size Cherokee. It turned out to be my rear wheel bearings. I would also replace the u-joints first though if they are that bad. Ever do a (fill in the blank) wheelie before?
     
  12. bigblue

    bigblue 1/2 ton status

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    Man I am having the same problem. Especially when turning and flexing I am getting a noise that sounds kinda like wheel rubbing. But mine is more of a POPing sound. I need to investigate further though. I wonder if ball joints make noise when going bad. I haven't heeded the advise of the all knowing k5 guys as of yet but finally this weekend i will have some time to take her apart and look her over.

    baja surf nazi -...A late storm NEVER comes...

    [​IMG]
     
  13. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Hey bigblue,
    My truck has made those same popping noises when turned or flexing, does it just happen when you're in 4 WD? If it when you're in 4WD then it sounds like it could be your front axle u-joint.
    Check that the u-joints caps are still there...
    My balljoints never made a peep when they went bad, I just started getting horrible tire wear (cupping) and when I checked the front end out I had 3/4" of lateral movement at the bottom of the tire.[​IMG]

    Rene

    [​IMG]<A target="_blank" HREF=http://jules.coloradok5.com>http://jules.coloradok5.com</A>
     
  14. bigblue

    bigblue 1/2 ton status

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    no, it is when either 4 or 2 wheel drive. i started noticing it when i go up a hill and turning at the same time. it sounds like it is coming from the right side front but then it will seem like it is in the back right. the steering FEELS weird too when it happens. oh, my balljoints on the left side have some serious play but no tire wear is occuring. it is hard to diagnose when i am a rookie!!!

    baja surf nazi -...A late storm NEVER comes...

    [​IMG]
     
  15. Thunder

    Thunder 3/4 ton status

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    Do you guys have auto hubs??? They make all kinds of terrible noises when they go out. When mine went out I at first thought it was the rear end. Turned out one of my auto hubs was engaging and disengaging when ever it felt like it. made my drive train make all kind of noises in forward or reverse.
    I replaced them with manual locking hubs and have had no problems or noise.
     

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