Car overheating, replaced most. Maybe fans or short -1995 z28 Lt1
#21
#22
the trunk has a solenoid activated release (electrical) which may have been shorted maintaining a constant draw....although I would think your trunk would pop open continually.
I don't have a F-body but am not aware a "automatic trunk close" feature was offered. Shbox would know. The trunk lid may be assisted "open" with a pressurized strut that is not activated by anything external.