Help with same problem?
I have a 2003 1500, 4.7L, 90000 miles. Mine starting making a whining noise after I ran through a huge puddle on the road during a thunderstorm (been a while since this happened). Sounds like bearing squeal, so I changed out the belt, idler and tension pullies, and had the AC compressor pulley changed out. Still makes the damned noise! I have yet to figure out what it is...local dealerships want $700+ to change out the power steering pump, so definitely won't be doing that. There's no play in any of the pulleys i didn't change, and the truck runs fine other than the noise...had a mechanic take a stethoscope to it and that's when i had the AC pulley changed. Noise was still there. Could it be as simple as changing out the Power Steering pulley? Also, you can hear it faintly at idle on mine, but its really loud when giving it any throttle at all. kind of winds down as the rpm's lower too. IRRITATING problem! any ideas????