I have a 2004 chevy blazer and my 4 wheel drive stop working my service light is not on the light for the push button switch is on but when I push the 4 hi button I do not hear a click and it does not go into 4 wheel drive the light does not even blink on the four hi button the light just stays on 2hi. I have disconnected the battery for about 10 minutes reconnected the battery push the button and then is switching into 4 wheel drive but it will stay stuck in 4 hi I would have to disconnect and reconnect the battery in order to get it back into 2 hi high I am thinking I have a bad transfer case motor can anybody help

 

we get a lot of 4x4 not working stuff. read through this and see if it answers your questions. it might give you some ideas and things to try. then you can probably ask a more specific question.

but for right now, it sounds like you might have a bad TCCM.


https://blazerforum.com/forum/tech-a...ill-help-7180/