Take it to a garage they will usually diagnose it for free if they are not busy.
However, it could be broken suspension and steering parts.
No such thing as a 2003 Chrysler Pacifica. Your 2004 Chrysler Pacifica that was built in 2003 probably has a bad bearing in the blower motor. Unfortunately, the entire blower would need to be replaced.
You may not have enough steering fluid?
check your power steering fluid
Check the oil. Failed lifters/rocker arms would not be uncommon.
An expert would have to hear the noise. Some possibilities are dry top bearing of the shocks, horn ring loose in steering wheel, tire rubbing on frame - -
if u put wider aftermarket tires on then the tires are rubbing on the fender wheel well if you are refering to in/at the actual steering wheel, then some grinding noise is normal. it's possible the electrical contacts for airbag/cruise/radio controls, whatever you have on the steering wheel are making some grinding noise.
Power Steering Fluid Low.
Check the fluid first
Are the tires actually rubbing or do you just hear a noise? If they are rubbing you have a serious front end problem. If you are just hearing a noise it could be that your front brake pads are worn out. There is a little metal pad built onto the brake pads that rub when the pads are worn out, telling you that it is time to have them attended to.
It is possible that a part of the EGR valve has fallen out. This will cause a very loud exhaust noise.
Front main axle or CV joint.... that's assuming this car is front wheel drive
If it is a rapid clicking, the battery has failed.