1998 Sierra 4x4, all 4x4 lights slowly blinking

[lambothehick]

I have a 1998 GMC Sierra 4x4 with a 350 and electronic shift-on-the-fly 4x4. The vehicle is currently in 2HI, but ALL of the lights for the 4x4 (2HI, 4HI, 4LO) blink very slowly and I am unable to shit out of 2HI. I can't hear the actuator, or anything for that matter, doing anything when I hit the button to shift into 4HI. I had broken the mount to the actuator and had it replaced a year or two back, but when the transfer case was nonresponsive then I had was a quickly blinking 4HI light and I could hear something happening. Any Ideas?

[Sonny01]

You need to take the box with the control buttons out of the dash...open it up and resolder the small solder joints. Or, the dealer sells them for like $65.00. Mine did the same thing and that's how I fixed it. The joints are small and crack over time. I used one of the new battery operated Coleman ColdHeat soldering guns because it has a small tip but any good low wattage gun like from RadioShack will work fine. The hard part is getting the box open, I did it and I'm all thumbs.