my tahoe makes a loud noise when 4 wheel drive is engaged on 1998 Chevrolet Tahoe

when i take it out of 4 wheel drive it is still making a noise but not as loud as before. has 130,000 miles never had this problem before

Asked by for the 1998 Chevrolet Tahoe
or actuator motor,seek insp and diag
1 more answer
could be something in the transfer case