So I'm having some issues with my 4x4 engaging. All 5 lights come on for about 5 seconds when you first turn the key but, none of the indicator lights light up. You can't change to any of the other settings. Not even the 2 high lights up. I was looking around under it and realized that a mechanic didn't connect the front actuator and that 3 wires were broken so I fixed all that but still no luck. There is a tube that looks like a vacuum tube off the top of the transfer case and it's broken off of something but I don't know quite what. An help is appreciated. I'll put pictures up tomorrow. Thanks
1999 Chevy suburban k1500 5.8 l gas engine.