I have a 92 Bonneville SE, no air blows from the vents at all. Doesn't matter if it'* outside air or hvac. A few months ago, it only worked on high. It corrected itself and worked fine until today. I've heard blower might need to be replaced. Also heard I might just need to bang on the blower a little bit. Can anyone confirm these ideas or let me know if you have any other thoughts. Also where'* the blower and how difficult is it to replace. Thanks for your time, I'm in Atlanta and it'* too hot for this.

Either it is your fan control switch, blower resistor or the blower itself.

If you have access to 2 lengths of wires, you can connect them to the battery and connect the other end directly to the blower. If the blower runs, then likely it is your blower motor resistor. On a 92, I'm not sure where it is located. But usually right next to the blower.

Where is the blower located?