1996 Tahoe (4 dr) 4x4 light flashing, but not locking...

[SunlitComet]

if you are moving in gear that should not be possible to switch from high to low or back. you would have broken a component in the tcase somewhere. you sure you dont mean 2hi to 4 hi or vice versa. what mode were you in and what light was doing what and when it changed how did the lights change?

 

[boots1986]

I was driving in 4hi and I just switched to 2 hi when I am stopped and in neutral I can feel it switch in and out of low range in the tcase but it does not lock the front dif 4 hi flashes and four low flashes

 

[SunlitComet]

neutral is only require when going in or out of 4lo only.2hi to 4hi or vice-verse can be done at any speed. you can remove the front actuator and observe it operation with ignition key on and in park it should extend within a few seconds when you press 4hi. if not check for voltage on the light blue wire. start with that.

 

[boots1986]

where are there commonly shorts I found number 24 fuse burnt replaced it tried going into 4 hi and it poped the fuse instantly

---------- Post added at 02:16 PM ---------- Previous post was at 01:34 PM ----------

im currently searching through haynze manuals for a wiring diagram but can't find one

 

[SunlitComet]

there is a harness on the front actuator trace it back to the transfer case switch and then to firewall bulk head connector. fuse to switch is brown wire. from switch to actuator and feedback switch are both light blue wire. all harnesses should flow on the left hand side of chassis.

 

[SunlitComet]

would need to email you better diagrams if needed.

 

[boots1986]

thank you for your help I found out it was a dead short in the actuator

 

[Ronball519]

Thank you! its pretty much stock but I try my best to take care of her.

Im having same problem i can hear it kick in but it dont lock in ordered new switch and everythin still doing it