13 years old, almost 126,000 miles. Its not a bearing sqeal. I don't know how to describe it. At first I thought that the new intake hose reverberated, and it was "whistling" or something. Its strange. Also, if it matters, I got a 100w power inverter. To test the electrical system as best I can (the inverter wont work with less than 13v for reference). I turned on the headlights, plugged my laptop and cell phone into the inverter, turned the A/C on high, plugged two portable DVD players into the other 12V outlets.... turned the radio on. With all this on idling, the power inverter turns off due to low voltage. If I tap the gas, it works for about 30 seconds, and then turns off again. I would imagine at idle it can't supply the amperage needed, but I may be wrong.