Hey Scotty, quick question:
I drive a 05 Jeep Grand Cherokee with the 5.7 hemi. For the past couple of years, I’ve been experiencing a ridiculous, shrill whine up front. It seems like it’s coming from the power steering system (You can hear it from the reservoir, pump, and the hydraulic radiator fan with the ol' screwdriver as a makeshift stethoscope trick). The whine is the worst when first fired up (typically cooler mornings), and right as the vehicle shifts between 1st-2nd, and 2nd-3rd (typically around 2400 RPM). I (like a lot of people) believed it was the PSP, replaced it, and still had the whine. I checked all the other pulleys, A/C, water, crank, and alternator with no luck. Fluid is up and freshly replaced. Could this be the Hydraulic fan solenoid going bad, misaligned PSP pulley, or could it be something else? Seems to be coming from the middle to drivers’ side of the engine bay. Been whining for about 2 years and its driving me crazy. Thank you, and keep up the good work. Love the videos!

could be tons of things, but those ps pumps often make noise like that. See this video to pinpoint the noise For Sure https://www.youtube.com/watch?v=pqh1oH8mEqY&t=119s