Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Transmission problem

Discussion in 'The Garage' started by aknight_sa, Nov 4, 2005.

  1. aknight_sa

    aknight_sa 1/2 ton status

    Joined:
    Oct 14, 2005
    Posts:
    305
    Likes Received:
    0
    Location:
    Saudi Arabia
    Hi all,

    my cousins 1989 blazer suddenly had a problem when he turned to 4WD, a big clicking sound started to come when he starts moving the car over 10mph, we dont know if the sound is from the axle or from the transmission gear...


    any has any suggestions on what the problem could be?


    thanks..
     
  2. southernspeed

    southernspeed 1/2 ton status GMOTM Winner

    Joined:
    Dec 24, 2003
    Posts:
    4,395
    Likes Received:
    50
    Location:
    VA
    Check the UJ's on the front prop shaft. When they go bad they make a bad clicking noise. Putting it in 4 wheel will bring them into play.
     
  3. aknight_sa

    aknight_sa 1/2 ton status

    Joined:
    Oct 14, 2005
    Posts:
    305
    Likes Received:
    0
    Location:
    Saudi Arabia
    if that is the problem, then they have been put into play but cant be put back off even when 4wd is set off..
     
  4. southernspeed

    southernspeed 1/2 ton status GMOTM Winner

    Joined:
    Dec 24, 2003
    Posts:
    4,395
    Likes Received:
    50
    Location:
    VA
    How do you mean? Is it still making the noise in 2 wd ?
     
  5. big83chevy4x4

    big83chevy4x4 3/4 ton status

    Joined:
    Mar 22, 2002
    Posts:
    6,587
    Likes Received:
    0
    Location:
    Sheridan, Michigan
    deffinetely sounds like a ujiont, or if it has autolocking hubs in the front, it could be those (they are know for having problems when they get some miles on them) it could be a ujiont in the front axle or front driveshaft.

    if it doesn't start till you put it in 4wd, then continues after you put it in 2wd, its most likely in the front axle/driveshaft area, especially if it has autolocking hubs. when you put it in 2wd, the hubs don't automaticly unlock for a while. so the front axle and driveshaft is still spinning.
     
  6. Leper

    Leper 1/2 ton status

    Joined:
    Feb 18, 2005
    Posts:
    4,437
    Likes Received:
    0
    Location:
    Dallas Baby!!!!
    That is good to know.
     
  7. JIMs70K25

    JIMs70K25 1/2 ton status

    Joined:
    Dec 31, 2001
    Posts:
    524
    Likes Received:
    0
    Location:
    Chesapeake, VA
    W/ the TC in 2wd, you should back-up about 15-20' to "unlock" the automatic hubs.
     
  8. dbabicky

    dbabicky 1/2 ton status

    Joined:
    Sep 17, 2005
    Posts:
    1,597
    Likes Received:
    0
    Location:
    Wisconsin
    I could be wrong, but I don't believe that the backing up thing is applicable to that model.
     
  9. aknight_sa

    aknight_sa 1/2 ton status

    Joined:
    Oct 14, 2005
    Posts:
    305
    Likes Received:
    0
    Location:
    Saudi Arabia
    yes, when we put the car back to 2wd the sound is still there...

    its a continuse strong click that comes from the back side of the motor.. and we cant drive faster than 10mps as the sound gets really strong..


    thanks
     
  10. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

    Joined:
    May 23, 2005
    Posts:
    4,110
    Likes Received:
    2
    Location:
    Salt Lake City,Utah
    could be a bad torque converter
     
  11. Roz

    Roz 1/2 ton status

    Joined:
    Mar 27, 2005
    Posts:
    900
    Likes Received:
    0
    Location:
    San Diego
    have u done any work to it (lift)?
     
  12. dyeager535

    dyeager535 1 ton status Premium Member

    Joined:
    Dec 13, 2000
    Posts:
    26,979
    Likes Received:
    189
    Location:
    Roy WA
    Are you actually getting 4wd?

    Clicking in 4wd in my truck with auto hubs was them not working right.

    Driveshaft will of course turn with 4wd engaged, but if the hubs are screwed up (as the auto hubs are many times) the front wheels won't be doing any work. Typically you find out you don't have 4wd when you need it.
     
  13. SUPER'BURB

    SUPER'BURB 1/2 ton status

    Joined:
    Jan 9, 2005
    Posts:
    929
    Likes Received:
    2
    Location:
    Mountain House, Ca.
    You should check all the bolts from the converter to the flex plate/flywheel to see if they are tight. If they are I would then check the flexplate/flywheel itself for any cracks. I have run into both situations in an street rod.
     
    Last edited: Nov 7, 2005

Share This Page