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drivetrain

  1. Transfer case bolts sheared, case rotated clockwise...

    Transmission Mods
    I just bought my 02 TB LTZ 3 months ago, and have been hearing a clunk from behind the tranny for a while, especially when I shift into reverse. Also, in first and second gear, there is an intermittent grind on take off, and while shifting into 2nd. It's not loud but I can hear it and feel it...
  2. Rumble and Vibration that increases with speed

    4x4 Drivetrain
    Before I start, thanks for taking the time to read this post! I've been experiencing a problem of steady low groan(low speed)/rumble(mid-high speed) and vibration that increases with pitch and frequency and don't know the culprit. The noise and vibration is consistent at a set speed whether...
  3. 225k Rear Differential Problems! Any help is appreciated!!

    OEM Issues
    Hi Guys! Its been a while since I have been on the forum but I am always surprised at how many great articles people post and the random things you find. Keep it up! So sadly the trailblazers rear differential broke last night :worried: I do not have a exact diagnosis yet but I am assuming...
  4. 4WD Service light on & no 4 wheel drive

    4x4 Drivetrain
    I see that this is a much talked about topic: 4WD Service light on I have a 2003 4.2L v6 trailblazer. When I switch 4 wheel drive switch to anything other than 2Hi the 4WD Service light comes on. I can also tell that the 4 wheel drive isn't engaged from how it feels when I turn the car in...
  5. 04 trailbazer transmission slip/jump at low rpm

    4x4 Drivetrain
    Good evening everyone, Transmission was slipping bad, changed the filter and 5 quarts of fluid. The slip is gone but when at low rpm it slips/jumps unless I increase rpm. Runs great when you beat it but under normal circumstances acts like its falling apart. I am certain it needs a rebuild but...
  6. Rearend Whine Above 50mph, New to TB, Please Help

    4x4 Drivetrain
    First post, sorry if it is a repeat. I have been searching all morning, but haven't found anything fitting my scenario. Mods, please feel free to move if this is the wrong place for this. I just picked up a 2002 TB LTZ I6 2 days ago with 109K miles on it. I took it for a 30 mile county road...
  7. Shifting Issues...

    OEM Issues
    HI All, '02 TB LTZ, 4whlDrv - 131K. Trans regularly serviced. Use Amsoil synthetic every 25K, new filter. 5K ago followed 'forum' advice on 'total drain' and 'replace' - went fine, got nearly all old fluid out. Issue: When cold only car will hesitate and make a (best description I can come up...
  8. Smart-trak awd, drivetrain controller?

    Transmission Mods
    Any body have any insight on how the Smart-trak awd system works? Any idea on an awd/4wd controller? Well, my idea is very similar to what is used on awd vehicles such as the nissan skyline,mitsubishi evo,and wrx impreza sti..... All of which have variable differntial controllers.... I have...
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