where is blower motor
on the firewall, under the hood on the passenger side. <---- looks like this
Here is a pic of your car, I circled where the fan is.
Just above where I circled, is a "cover" you need to remove it (there is a buch of screws along the top), As you can see, it is a tight fit. To make room you will want to remove the altenator. If you pick up a Haynes manual, it has pics and detailed instructions. Best of luck
Looking for a Used Lumina in your area?
CarGurus has 155 nationwide Lumina listings and the tools to find you a great deal.
Search Chevrolet Lumina Questions
Chevrolet Lumina Experts