Push button 4 wheel drive isn't working... Any help? 87 Bron

[ckymacias]

Just wanted to get an idea on where to start and see if this is a common problem... Thanks 87 Bronco 5.0
I read about checking connections and cleaning them which we haven't had a chance to do yet, but I have looked at all the connectors and there isn't any sign of lose connections...
Thanks B

[78Class3]

I have heard that the actuator/solenoid can be a problem point for them, but no personal experience

[Silverslk]

Tony had to have someone hit his engagement motor (on the transfercase) while pushing the 4x4 button on his when he first got it. Try that first at least help narrow it down. I have also heard about some relay under the dash......dont know anything else about that.

[tcm glx]

Tony had to have someone hit his engagement motor (on the transfercase) while pushing the 4x4 button on his when he first got it. Try that first at least help narrow it down. I have also heard about some relay under the dash......dont know anything else about that.

This! Tap in the motor while someone engages he button. I had this issue because it had not been used in such a long time when I first bought it. Now I make sure to engage once ever few months and havent had an issue since.

[300]

The cover on the motor drive down on the t-case sometimes leaks and it will corrode the contacts. The cover has those tamper proof screws on it. Have also had the little plate that is glued to the gear come loose, then the controls don't know where it is. Also had the motor run too far and get stuck past the end of the travel. I always hold my breath when I punch that button. Is it going to go in? Or if it goes in, is it going to come back out?

[ckymacias]

Thanks for all the info I will post a picture of the mess I found! Looks like I'm going to be in the market for a manual set up this auto 4x4 is from another bronco... And it wasn't done correctly! not really to bummed I did steal this thing and I knew there would be some surprises! At least it runs good!