sounds like a defective blower module
alternator belt broke it drives the fan
in the trunk fuse panel. removing the hvac fuse should disable the blower fan (and the rest of the hvac system. so no heat and no air) this is what i had to do until i got a replacement blower power module. otherwise it'd stay on and drain the battery
Built in the fan blower/motor.
my infinity g-20 blower not working
If its the same as my 95 eldorado (4.6 northstar) you need to remove the intake manifold , the starter is in the valley pan.
under hood, passenger side, firewall, in heater fan motor case, it is actually a module on this car, expensive. 4 or 5 wires,mounts from the top of black plastic heater case.
check the bottom of the radiator there should be 3 of them
front wheel drive
Blown fuse, bad fan speed control switch, bad blower motor resistor pack, bad blower motor, or loose or disconnected wiring.
crown Victoria blower not working and head lights.
If the blower motor is bad then you need to replace it, you don't repair it. The blower is located under the hood and you will need loosen the cradle bolts to rock the engine to remove the blower motor. Book time for this job is 2 hours................