4wd switches blinking and wont engage

I have the same problem with one addition - when I try to engage the 4X4 the ABS light comes on also. Sometimes when the engine starts and the ABS light goes off as normal the 4X4 will engage. What was the final solution.

The 4 wheel drive switch is an extremely high failure part. i would replace it and you should be ok! hope this info helps!

If no 4x4 in any range hi or low but you hear tranfer engage if could be the actuator on front axle or inside differential both axles are locked together with a sliding gear on the one axle that actuator pushes on to second axle ,when engaged the sliding gear is actually on both axles to lock front end what happens is they come out of alignment due to a bad roller bearing that keeps the axles lined up ..hope this helps

I have the same problem you do. the noise you are hearing is the transfercase engaging. that is not the problem. the diff is not engaging.that is what the actuator does it locks in the front diff. there is also a fuse that powers the front axle it is number 24 it could be blown. your lights blink even with that fuse blown. for some reason the actuator is not working. i replaced my actuator and it worked for about 2 weeks. now its back to doing it again. alot of people have this problem and says its not the actuator. there is also a actuator switch on diff located above the actuator its self.