Hi Pitched Noise At Start Up

[greenerob]

Originally Posted by southernstar

Or if it is a high-pitched mechanical sound, I wonder if the solenoid is not always disengaging immediately?

I would love to record it, but it is so random. I can see it being either of your suggestions. If it was the belt, is there a way I could tell by looking at it?

[southernstar]

Possibly - if there is sufficient visible wear/rubber dust in the area surrounding it. You'll need to remove the interior cover to the front of the engine. That being said, replacement is recommended at the 60,000 mile service. I'm not sure how many miles are on your car and whether it has been replaced. Certainly, even if you are not at 60K miles, age also causes deterioration of belts (as would misalignment of the pulleys, or wear in the waterpump, etc.). On the other hand, if it was your water pump I would not expect the problem to be so sporadic.

[Joel-Box-ster]

Serpentine belt can be access from behind the driver and passenger seat, your belt is probably glazed already and needs replacing soon.