High Pitched whine, even when stopped?
 

Hi
2007 boxster, Half way through my commute to work this morning I noticed a high pitched whine coming from my car.
Today is a rainy day, not sure if that is related.
This noise immediately goes quiet whenever I accelerate, and starts up again when not accelerating.
I though the noise might be brake related but then I noticed that it continued even when I stopped. There are No messages on the dashboard.
So I made it to work and took this video where you can hear the sound ... Anyone have any idea what it could be? Is it dangerous?

https://www.youtube.com/watch?v=nkvDrXrKWMA&feature=youtu.be

sounds like a bad pulley bearing to me.....if so you'll just have to identify which pulley....check all the pulleys that are driven by the belt as the engine is running (be VERY careful of moving parts)...i like to use a 'mechanic's stethoscope' for things like this....makes finding a bad bearing real easy....

good luck....

cliff

Thanks, assuming its a bearing problem, is that dangerous to drive?

maybe....if the bearing seizes then you have an issue...the belt will be forced to slip over the now stationary pulley which will cause friction and will melt the belt in a few mins...then of course the engine will start to run hot since the water pump is not circulating coolant.....you will need to shut down the engine and either replace the belt on site or get towed....this can be tricky if you are in heavy traffic with nowhere to pull off the road...

most likely you have some time until the bearing seizes but i would not go too long or too far until the problem is identified and corrected.....

good luck...
cliff

For the impatient, jump directly to 00:05 ;)

Haha, you made me watch the video! :rolleyes: