Replace blower control module. Usually the fan starts acting erraticaly and eventualy just stops.
under the back seat
mine on my 97 is on the rear window deck.
The sun.
They all work the same way they direct on coming air up into the radiator for cooling
For a 1995 Oldsmobile Aurora the OBD interface is located under the dash board on the drivers side almost directly below the steering column.
No electricity
I got it. It was the relay switch.
Might be a bad heater control
Heater coil could have went out.
the heater fan resister,it is or should be on inside or on outside heater box.
Low coolant.
i changed heater core in a 1995 Oldsmobile achive you have take your dash under neath just about the centercloser to the right also you have jack up your car theres two hose you have to take off its har get them off and on its alot of work it takes time to do it right a 1989 grand am heater core will fit it as long as it has a 3.1 Fred zeestraten