fourjtsj

My 4wd switch on the dash seems to change from 2wd to 4wd high and even 4wd low--without my input. I know this is a common problem. I replaced the switch years ago and that seemed to fix the problem. I just replaced it again because the problem is happening again (this time with a cheap switch) and it did not fix the problem. The actuator seems to work. Any ideas? Should I stick with an expensive OEM switch? The burb has 181k on it and it's been great except for this.