I need some help. This may have been covered before. My 99 tahoe has 4wd and the 4wd service light comes on and all the lights on the switch are on. It run bad when this happens. I have to disconnect the battery for 3 minutes and it resets the 4wd for at least the for a while. Runs normal then. I have changed the dash switch and the actuator. I just don't know what else to do.

 

Welcome to the forum. You need to post your question in the Tahoe section of the forum for more views as this is the Welcome New Members section.