I just bought a 92 S10 blazer with 2 button 4wd. I think it was the first year they offered push button 4wd.

When I got it the shift linkage was out of whack. When the gearshift was in park, tranny was in reverse, etc. I fixed that, but then the 4wd stopped working. I replaced the vacuum actuator switch on the t-case. And now, you push the 4wd buttons and nothing happens except when I'm in reverse, then they blink but nothing engages.

Then last week, it decided to work just fine. I shifted it repeatedly. All was well until I hit a bump and then it was back to not working at all. It is like the switch is dead except for when its in reverse.

Can anyone tell me where I should start troubleshooting at? It sounds like an electrical and not mechanical problem to me. Maybe something to do with the gearshift position and the previously bent gearshift linkage?

 

check your OP in this thread you posted already.

 

*Thread Closed - Double Post*