2001 Chevy impala with 2 problems. First, I get a whining sound that lasts about 1 min after the car has run for about 5 min, and as soon as the noise starts the engine temp goes up (high, but not in the red). It’s not the accessory belt, revving the engine doesn’t do anything and either does putting the car in neutral. I can get the tone to slightly change by turning the a/c on and off, but it doesn’t stop the whining. It sounds like it is coming from the radiator fan and when I tapped the one fan the other day, the noise stopped, not sure if it was just a coincidence. Second, I get a popping noise coming from the front of the car when accelerating. I don’t think it’s the shocks because I compressed the shocks by bouncing on the hood and got no noise. Any help would be appreciated.