Power steering is stiff on 2003 Hyundai Santa Fe and it is making loud noise. We checked the fluid and it is full.

Hi you have checked p/steering fluid have you checked the pump drive belt ? it may be loose/worne out and in need of replacement? also more important ? when did you last check tyre pressures honestly ??? these are the 1st things to check at least weekly ? considering age of vehicle and probable milage? if the belt/s have not been renewed ? might be worth doing? before failure when you are on freeway ? you can diy belts saving $$$$s garage cost/labour charge and you can purchase from most good motor stores/factors instead of dealers prices ?