Q: radiator flush and 4x4 lights on 1996 Ford Explorer

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
how do you flush the radiator in a 1996 eddie bauer ford explorer 4.0 4x4 and my 4 low and 4 auto lights start flashing and i have no 4 wheel drive when this happens is it the switch?
(2) Answers
First thing to check on 4x4 problem is the actuator motor on the transfer case.
Can "tap" on it with a small hammer if it now works replace it!! They give a bunch of trouble.