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4wd problem

  1. 4WD Knocking sound

    Hello everyone. Im new here, and I have a trailblazer 2002. Its my first car, well truck i ever owned. Almost a year ago i had the transmission Rebuild. it popped while trying to get off a parking spot, in reverse going down hill. 4WD worked like a charm. Specially in the snow. Now that i...
  2. check 4wd @25

    TrailBlazer / Envoy Chat
    Does anyone have any clue as to why the check 4wd light keeps coming on at almost exactly 25 mph? The 4wd is working perfectly, all indicator lights come on to show its in 2wd, 4 or 4lo, however once you hit that 25 mph mark and the light comes on it will not shift out of whatever mode it was in...
  3. 4WD very difficult to go in reverse, jumpy & loud

    4x4 Drivetrain
    I just took my car to get it's oil changed. I live in Seattle, lots of hills and it's snowy today, so I put it in 4WD for the first time in months, even close to a year maybe. I found myself attempting to back up in the parking lot (before the oil change), and the car was very hesitant to go...
  4. 05 Trailblazer - jumping into 4wd

    Hi all, we have an 05 Trailblazer with around 62k miles... While driving down the highway in 2wd I looked and noticed it was in 4wd and appeared to be trying to jump to 4lo ... the 4wd light was lit and 4lo was blinking.. We saw this another time while driving on a windy road it jumped into...