Anyone else seen this problem? I've got an '01 quad cab 4WD and for some reason its switching itself into 4WD and lighting the service 4WD light. So far the shop has replace a control module, switch, and actuator but its still doing it. Any suggestions?

 

i beleive there was a recall on the transfer case control modual, had to be reflashed, it would go out of gear and wont engage, so,ething like that