4X4 wont work?

Have you checked the actuator to make sure it isn't getting power? Actuator problems on these vehicles are common.

Let me know.
Joe

Have you disconnected the wiring harness on the actuator? If not, do so and check for damage, corrosion. If you have already done that, you need to start tracking the wiring back to the relay to see where it is lost. It could be a broken wire, fuse, relay.

I had a feeling that was the problem. It is very common on these vehicles. As far as repair, it is usually a combination of corrosion, rust. That causes them to stop. By the time you get new parts to fix it, you could have just gotten one with a warranty.

As far as replacement, check some of the parts stores. I would think by now you can get them aftermarket. If they can't get them, a dealer will be expensive, so check salvage yards. I'm confident you'll find one. Just make sure they warranty the part.

Let me know if you have other questions.

Joe

If you are sure the 4wd actuator on the transfer case is good, then you must have a vacuum leak at the front axle or if you hear a grinding sound, the hubs are bad.

Let me know what you find.

Joe

Most likely, the elevtric motor on the back of the transfer case has failed. This has been a fairly common problem with these units.

The most common failure here is the electric motor/switch/sensor assembly on hte rear of the transfer case. This is a fairly simple and straightforward item to replace.