4 Wheel Drive doesn't Work?

Hello my name is evan and I have a chevy 4x4 all time drive. The other day in a snow storm I went to get some gas for my truck and I had it in 4 low and it was fine I pulled into the gas station shut it off paid for the gas and pumped then started to leave I pulled up to the exit and stoped at that very secound it somehow stoped working and at the traffic light was still not working and I went home and every thing seems to be moving and I replace one of the sensors on top of the transfer case and that was good when I took it out but I put the new one in anyways tried it out and it still was not working and I noticed that there is a nother sensor on the front differential im not sure if that is what is wrong with it or not but if I get some feedback I will go buy what I need and I checked the fueses jiggled the wires and it is still not working, 4hi or 4low does not work. So if you could plz help me figure out what is wrong with this thing thanks very much. Evan

Hello Evan
I have a 94 Silverado with the same issue, mine has the automatic transmassion and the floor shift for the 4LO N 2HI AND 4HI with an indicator light that lets you know when the front axle is engaged. My indicator light is not working, the bulbs are good and so are the fuses. It is not going into four wheel drive even after I replaced the front Actuator. From what I have read this seem to be the problem in most cases for the front axle not to engage. Jack up the right side and locate the Actuator on the axle housing and remove the Actuator, do not disconect the wire connector, put the sift lever into four wheel drive and check the Actuator if it does nothing it needs to be replaced, This did not help in my case but check out the front Actuator front axle right side. Hopes this helps

My four wheel drive will not engage, what could be the problem

I have got a 1994 chevrolet 1500 four wheel drive pickup and have been having some problems with the four wheel drive it will not go into four wheel drive I replaced the acuator switch in it but it did not do any good it still won't go into four wheel drive checked the fuses all good and my cousin tested the wires and he is saying I am not getting any electrical current he is saying that it is a bad wire somewhere between the fuse box and the front axle the transmission is going in and my four wheel drive shaft is locking in but the four wheel drive will not go in I was wondering if you could tell me what is wrong with it

Hey, I'm new here. I have a 1994 k1500. 4wd fuse keeps blowing when I turn the key on. Recently a shop put a transmission in the truck. Can't keep a fuse in it because it literally pops the fuse when turning the key on.