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encoder motor

  1. 4x4 Drivetrain
    I have a 2006 Envoy and I was stuck in "4WD" but only the front differential was locked and my transfer case was in 2WD. I replaced my transfer case motor and in doing so my bolts wouldn't line up and I tried shifting the transfer case using the motor and something bound up in the case and a lot...
  2. 4x4 Drivetrain
    I have a 2004 Gmc Envoy SLE and the 4x4 isn't working. I have no service 4x4 light on. Everything seems to work fine but the front tires won't spin. It snowed a couple of days ago here and i tried going up a hill and I coulnt. The front tires just won't work. I switch into a4wd or 4hi or 4low...
  3. 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...
  4. 4x4 Drivetrain
    So my 4WD seems to be stuck in A4WD. I have searched through the forum and found a lot of good information but I think I still need some help diagnosing the problem. The service 4WD light is on. And the selector light is stuck in the A4WD position. I took it to a local transmission shop for a...
  5. 4x4 Drivetrain
    Hi Everyone, Here is my story- I have Trailblazer 2002. Initially I swithed the nob from 2WD to Full 4WD, the light kept blinking but didn't feel any engaging, and once in a while this also triggered Service 4WD light on. Brought the car to dealer and it was told Encoder Motor problem and...
  6. Introductions
    Hi Everyone, Here is my story- I have Trailblazer 2002. Initially I swithed the nob from 2WD to Full 4WD, the light kept blinking but didn't feel any engaging, and once in a while this also triggered Service 4WD light on. Brought the car to dealer and it was told Encoder Motor problem and...
  7. 4x4 Drivetrain
    A couple of months ago my bravada was doing the infamous crow hop on low speed turns. Figured it the the sensor in the encoder motor so I ordered one off ebay and it turned out to be broken. So I ended up putting the old one back in. The only problem was that the encoder motor somehow...
  8. 4x4 Drivetrain
    I have ordered a replacement encoder motor and will be changing it myself any tips on this? i looked in the forum for how to's or pictures but couldnt find any. any advice would be greatly appreciated!!!
  9. 4x4 Drivetrain
    2004 Trailblazer, 6 cyl. 4X4 switch not lighting up. My GF took her truck to a transmission joint. They diagnosed the C0-327 error code and informed her her (EM) Encoder Motor was blown. They installed a new one, reset the system, and was thrown the very same code. After looking into it a bit...
  10. 4x4 Drivetrain
    Okay, here's the deal... our '04 TB has locked itself in 4WD. When I select 2WD, it flashes a while - then "4WD" lights up. When I select "A4WD", it flashes a while but eventually lights... you can tell it's still in 4WD though because of how it grabs during sharp(er) turns. Been to the...
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