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  1. diesellibrarian

    4W Drive stuck on?

    No, because the light is actually controlled by the 4WD control relay (see wiring diagram above). That's because when you engage 4WD using the lever that puts the system into 4L, it has the same effect as the switch, i.e. it engages the front drive (albeit in 4L) and turns on the light. EDIT...
  2. diesellibrarian

    4W Drive stuck on?

    That's my understanding, yes.
  3. diesellibrarian

    4W Drive stuck on?

    You've checked that the front drive shaft won't spin by hand even after disengaging the 4WD and unlocking the hubs? Anyway, when in doubt, consult the Factory Service Manual. Here are some screencaps that might be helpful: It's possible for the switch to go bad - that happened to me. I...
  4. diesellibrarian

    4W Drive stuck on?

    It could also be a leak in the vacuum line between the solenoid and the transfer case. That's a much cheaper/easier fix, so might be work investigating before you head to the wrecker to find a replacement VSV.
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