I have a '92 LT1 coupe, and around 45-60 seconds after start up I hear a whining/whirring sounds that lasts maybe 3-5 seconds. the sound resembles that of an electric motor pushing something up or down, and it is not the radio antenna, because it happens whether or not the radio is on, plus the sounds is coming from under the hood. can anyone shed some light on that please? thanks.
Jim aka #1weatherman