i would appreciate some info about my Bronco. it is a 90 model, 5.0, with a 1356 borg warner electronic shift transfer case. when i try to engage the 4X4, it won't engage into 4 wheel drive. i can hear a clicking sound and the voltmeter jumps, but thats about it. i am currently in the process of selling it and would like to get this problem fixed before i do. i am assuming that it is in the control module but you know what you get when you assume! thanks