my car needs a jump to start after 12 hours, my friend says it's the fuel pump, if it's the fuel pump WHY would it start with a jump??
1992 Oldsmobile 88 Royale 6 cyl 3.8 it will start on it's own before 12 hours of
sitting but 12 hours or after It needs a jump to start. It's not the battery,
alternator, starter or solenoid they have all been checked by Auto Zone & they
say there's nothing wrong with them, so please tell me what it might possibly
be.