You need to test the alternator (#1) then the elec system for a draw. The alt genrates a magnetic field (metal will stick to backside while turning) to test for a draw, string a test light between pos cable & batt with everything off.
No
I need to know how do i replace a haeter core on a 1994 buick park avenue?
4t60e
It really needs to be checked out but it probably is the headlight switch itself that is malfunctioning.
under rear seat
The schematic should be on the fan shroud.
Left rear of engine compartment.
yes
Vehicle charging voltage too low or too high or monitor circuit faulty. Check battery with voltmeter.
Check underneath the windshield washer bottle
THERE SHOULD BE A PLUG ON THE BOTTOM OF THE RAD
Pull the fuse or fuel pump relay.