I recently purchased this s-10 blazer and it makes a whining noise. on 1994 Chevrolet S10 Blazer

I recently purchased a 94 s-10 blazer 4.3 lt Vortec V-6 2WD Tahoe LT. Everytime I push the gas pedal I hear a whinning noise coming from the front end. It does it until I let off the accelerator. It's driving me crazy...any suggestions? It does it at all speeds.

Check the power steering fluid