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Loud clunk when turning

Discussion in 'Trucks [ Eighteen Wheelers ]' started by gokiddogo, Oct 1, 2012.

Page 2 of 3
  1. Oct 2, 2012 #11
    gokiddogo

    gokiddogo Road Train Member

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    Mar 5, 2012
    Ontario Canada
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    Yes it has airbags. The bushings on the front springs were just replaced a few months ago because the front end was clunking when turning or on uneven surface. That problem has been solved and this new sound is much different and sounds like it is coming from the rear end. When I get back home on the next service I'll have my mechanic look into it more. Perhaps I can show him the noise if I have a heavy load on. That is when it is most pronounced.
     
    gokiddogo, Oct 2, 2012
    gokiddogo, Oct 2, 2012
    #11
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  3. Oct 2, 2012 #12
    Grumppy

    Grumppy Trucker Forum STAFF Staff Member

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    Dec 11, 2010
    West Monroe, La
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    My thought was an axle was out of alignment...

    But...
    So, unless it wasn't done properly.

    I guess my question is, was it doing all this before the 3 axle alignment OR has it started since the alignment? I might possibly have the alignment rechecked just to rule it out. All they do is hold a special measuring stick from the center of one hub to the center of the other (rear axles), lock the length & go to the other side & match/measure that side. If there is a difference in length, an axle has slipped or wasn't aligned properly previously.
     
    Grumppy, Oct 2, 2012
    Grumppy, Oct 2, 2012
    #12
  4. Oct 2, 2012 #13
    claytonr1973

    claytonr1973 Light Load Member

    266
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    Jun 1, 2008
    miami,ok
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    Clunk sound can actually be your power divider or rear going out. Drain the oil and check for metal chunks.
     
    claytonr1973, Oct 2, 2012
    claytonr1973, Oct 2, 2012
    #13
  5. Oct 2, 2012 #14
    belltransit

    belltransit Light Load Member

    271
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    Jun 28, 2010
    oak grove, mo
    0
    bubba..mines an 06 with the airleaf 4 bag system. the time i notice the egg feeling is when im running a very slow speed like when im in traffic.
     
    belltransit, Oct 2, 2012
    belltransit, Oct 2, 2012
    #14
  7. Oct 5, 2012 #15
    bubbanbrenda

    bubbanbrenda Road Train Member

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    Feb 27, 2011
    Middletown,Oh.
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    measue tread depth every 1/4 turn of the tire if you find more than 2/32 differance on the same tire you've got a bad/ broken belt.
     
    bubbanbrenda, Oct 5, 2012
    bubbanbrenda, Oct 5, 2012
    #15
  8. Oct 5, 2012 #16
    black_dog106

    black_dog106 Road Train Member

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    Mar 29, 2009
    MA
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    How do i know exactly where 1/4 (90*) turn is on the tire within 1/16th of an inch?
    I have "checked" tires before, jacking up tire and setting object close to middle of tread and spinning tire by hand(like we did when mounting spoke wheels). Sometimes that will show a problem tire.
     
    black_dog106, Oct 5, 2012
    black_dog106, Oct 5, 2012
    #16
  9. Oct 5, 2012 #17
    Autocar

    Autocar Road Train Member

    3,167
    2,358
    Apr 28, 2012
    The Hot Rod Shop Oxford, AL
    0
    Not necessarily true. My drives are intentionally set to be wider apart, on the passenger side, than the driver's side, to counteract the forces of the road crown.
     
    Autocar, Oct 5, 2012
    Autocar, Oct 5, 2012
    #17
  10. Oct 6, 2012 #18
    bubbanbrenda

    bubbanbrenda Road Train Member

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    Feb 27, 2011
    Middletown,Oh.
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    you dont have to jack it up, next time youve got about 1/2 hour to kill set the brakes and mark and check the tread depth @ 12:00 on all the tires then roll the truck about a foot and a half( so your mark is at either 9:00 or 3:00)then check it again (with a tread depth gauge).Then repeat (now your mark is at 6:00) remeasure, then repeat (now you have 4 measurements on each tire).If there is more than 2/32 differance on each tire, i.e., your left front outside drive tire measures 9/32s at all 4 spots its good but the inside measures 9/32,9/32,5/32,9/32 that tire has a bad belt at the 5/32 mark, causing your "hop".
     
    bubbanbrenda, Oct 6, 2012
    bubbanbrenda, Oct 6, 2012
    #18
  11. Oct 7, 2012 #19
    wideload

    wideload Heavy Load Member

    868
    388
    Sep 1, 2012
    in the granny lane
    0
    you sure its from the rear cause it sure sounds like a shackle pin bushing worn out
     
    wideload, Oct 7, 2012
    wideload, Oct 7, 2012
    #19
  12. Oct 7, 2012 #20
    Gear head

    Gear head Medium Load Member

    532
    91
    Apr 1, 2012
    Belair,md
    0
    Spring pin in rear of front springs ive seen this over and over. Does it have the non greasable pins?
     
    Gear head, Oct 7, 2012
    Gear head, Oct 7, 2012
    #20
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