Mechanics I need advice Silverado

[flywise]

So long story short my push button 4x4 has been acting up. I replaced the push buttons, replaced the transfer case actuator motor and just tested the transfer case module. It works fine. I don’t get any lights on the buttons and they do nothing to engage the tc motor. The 4wd fuse is fine and I even check every fuse in both boxes and all are good. What the hell am I missing?

[Twist]

Damaged vacuum harness?

[Kingfisher789]

Year model?

[ramrod]

My brother had to have his computer reflashed/programed, because it forgot it had 4x4.

[Pushbutton2]

I have a 98 Z71.
If I select 4 wd and the light isn't lit up it's not engaged. When I push on the dash right next to the switch, than it'll light up and I can hear something click. Not sure what's making the click, but I have 4wd than. Not sure why it's doing that, but it works so

[BowSlayer]

I would find all the ground points on that vehicle and inspect/clean them. 1 bad ground can cause lots of different problems.

[Tree Phantom]

I have a 98 Z71.
If I select 4 wd and the light isn't lit up it's not engaged. When I push on the dash right next to the switch, than it'll light up and I can hear something click. Not sure what's making the click, but I have 4wd than. Not sure why it's doing that, but it works so

Hmmmm, my 1998 does the exact same thing. I bought mine new and it’s only showing 440,000 something miles.

[flywise]

2006
I took the old TC motor apart and advanced the gear and now It at least has lights. Will check grounds now.
The new TC motor I bought is not set so that it will align with the splines on the case. So I need to figure out how to shift the case manually so it line up with the motor.

[Pushbutton2]

Hmmmm, my 1998 does the exact same thing. I bought mine new and it’s only showing 440,000 something miles.

Awesome!!
My buddy has a 99 2wd with the 5.3 he's got 424,000 miles on it
Mine has 265,000

[BrianL]

2006
I took the old TC motor apart and advanced the gear and now It at least has lights. Will check grounds now.
The new TC motor I bought is not set so that it will align with the splines on the case. So I need to figure out how to shift the case manually so it line up with the motor.

If you haven't done it in the last 4-5 years I would replace both battery cables. If they aren't causing problems yet, they will.