High pitch squeal - 986 Forum - The Community for Porsche Boxster & Cayman Owners

tommy583 · 09-19-2013, 04:27 PM

If it's a short squeak i would check to see if the spark plugs are tight.

Jager · 09-19-2013, 05:52 PM

Does it change pitch with change in speed? Can you hear the squeak parked or does the vehicle need to be rolling?

trimer · 09-20-2013, 02:46 AM

Quote:

Originally Posted by Jager

Does it change pitch with change in speed? Can you hear the squeak parked or does the vehicle need to be rolling?

Its not short. It does change pitch when accelerating and it does not happen when parked and revving...

trimer · 09-20-2013, 11:46 AM

So here is a video clip of what I believe is the sound. Only happens on acceleration. According to this video it sounds like it has to do with either the intake or throttle as it is happening on the intake side and when I push the gas. BUT when I am driving the noise is there a lot longer. Listen for high pitched chirp when I hit the gas. Thoughts?

Boxster chirp noise - YouTube

steved0x · 09-20-2013, 12:27 PM

I had my engine cover off the other day and I noticed when I hit the gas there was a short whistle during the transition from idle to throttle open. I took a recording, but the sound is very faint (so I can't post it for comparison) but I thought I detected the same sort of whistle in your video when you hit the gas. I can't hear it at all when the engine cover is on, and I never heard it when driving. So I am interested in what comes out from this thread.

Steve