hey yall... i hope you may be able to help me on a couple small things on my 84 vette, first i notice the odometer resets itself everytime i turn the ignition off...it works fine otherwise but just wondering wher ei may begin to look for a voltage loss possibly. also my rear defroster keeps blowing the fuse and was just wondering if there is a common place where these things may short out...i do appreciate any help in this.....bill

 

Check the motor, it might have binding bearings or burnt windings.Its not to hard to remove and bench test. Its a basic start. Good Luck.