hi all, i have a 92 f350 with the e4doa in it. i was under the truck doing some shifter linkage adjustment, and after i was through i had my wife turn the key on. with the key on you can hear the solenoid pack making noise, it sounds like a bunch of bee's swarming around inside it. its not a constant buzz it pulsates and sometimes skips. does anybody have a clue as to what would be causing this or is it supposed too? remember this is with the engine off and just the key on.