99 Yukon Denali No 4WD Light on dash

  • 1999 GMC

Hello, I have a 1999 Yukon denali 5.7 Engine with 95,000 miles. Recently my 4wd stopped working and I have the service 4wd message. First I replaced the 4x4 Actuator on the front axle, still nothing, Replaced the switch on the dash nothing happening, then I replaced the encoder motor and plunger according to a bulletin by gm. Everything seemed fine i'm able to switch between gears but the service 4wd light is still on. Now today i'm driving back out of a spot and boom no lights on the 4wd selector on the dash. Checked the fuses all worked and getting power can hear clicking on comming from the fuse panel. When I first power up the vehicle I notice the light light up but don't stay on please help are they any more switchs the control this 4wd it's becomming a nightmare.
Thank in advance.

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Sunday, August 19th, 2007 AT 2:19 PM

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