humming sound while driving, could it be the tires,? on 2001 Buick Park Avenue

gets pretty loud, also fan for air will work for a little bit then quits

2 answers 2 comments
could be tires and poss bad blower motor
are blower motors very expensive, thank you so much.
not very exp at all
Check and see if the loud noise are your wheel bearings ( hub bearings ). jack the front end and see if there is any play on the wheels .( when you try moving the top and bottom of the wheel.. any movement- you need to change the hub bearing. best to do both sides ..)