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  1. 4x4 Drivetrain
    My 4WD has worked flawlessly on my 02 Trailblazer LTZ (133,000 miles) up until a week ago. During a snowstorm that dropped 30" on Northern MN I had a complete failure of all systems. I selected 4WD LO while at a stop and I heard a clunk. After that I had no forward or reverse. I have been...
    4x4 drive train 4x4 switch encoder motor front actuator tccm
  2. 4x4 Drivetrain
    OK, 4wd doesn't work. I believe its the front axle actuator from researching some threads. I put my tv on stands, put it in 4wd, spun one wheel and the other didn't move. Took off the actuator, took a skrewdriver and used it to push in where the actuator slips into & it locks up. I then spin...
    front actuator
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