96 Gmc Z71 4x4 Problems?

[Daveharn]

Well I have 96 GMC and with the recent snow and cold I have been using the 4 wheel drive. Well the other day the lights on the 4x4 selector panel did not light up when shifting to 4hi. I did a little test run and figured out the front dif is not engaging. I figure the front axle actuator has gone bad but wondered if that would also cause the lights to not work or if that was just by chance. Glad I happen on to this place. I already found the technical bulliten on how to replace it. just want to make sure that is the issue before I go through the trouble. Thanks for the help.

[grose67]

Welcome to the forum. You can take a volt meter and check to see if the actuator is getting power. If it is, probably the actuator. If not I would check the switch.

[Nytemare]

Sounds fuse related to me....your actuator was probably cold and drew more current than it was supposed to and blew the fuse. Check that first.

[MYZ-71]

most likely the actuator, I replace the one on my 94 2 years ago and it`s gone again, if getting 12volts to actuator then that`s the problem, your light won`t come on until diff locks in.