the four wheel drive i get no lights on the push button four wheel drive switches i tried changing the switch still the same problem what do i do next

 

You need to have the computer scanned for code errors, pretain to this issue. Also you might need to have the actuator check for failure.

 

for the ideas. i don't have a scanner to scan the drive train so it's goin next week to the shop to be check thank you again

 

My 2001 blazer did that and it was a vacuum line off near the upper center firewall on some sort of small valve , replaced the line no more issues. Another part of the vacuum lines runs under the battery box & you have to take the box out to get to it.