Sounds like something is just caught in there.

[tonycarreon]

my e-brake line rubbed against the wheel and it sounded just like that, though i didn't have the rpm weirdness...

vid link

[eightsandaces]

Is it like an intermittent hamster wheel squeal? Mine was much to my shock a loose spark plug. I'm not the only one who had this in fact someone sent me a sound file you might find in a site search. The sound file was dead on for my noise, two loose plugs found.

[yelojkt]

Have you looked under the car to see if anything is wrapped around your driveaxles or if there is any sign that something was like a torn boot or areas of the axle that are cleaner than others? What kind of condition are your cv joints in? I have a CV that is going out and it will make a noise for a few days and then nothing for hundreds of miles then noise again.

[SeanZ4]

but the strangest noise I've ever experienced was a week ago. Car had been sitting in the garage for a few weeks with e-brake on. I started it, put it in rev. (6 spd man.) released e-brake, let clutch out and heard a very gut-wrenching loud "clank"!! I put the clutch back in, put it in first and rolled it fwd a little then back in rev. and back a little. Noise never came back again. What the heck was that?? Was it the e-brake stuck on then disengaging? It was a terrible metallic clanking noise. The car just turned 40k and has been meticulously maintained it's entire life. Anyone experience this??

sean

[Jaxonalden]

Davemon,

You said you stopped to get a bite to eat, returned and heard the Flop, flop, flop driving away? Sounds like you had a cat under your car and once you accelerated it decided to "depart the fix".

[JTP]

Originally Posted by SeanZ4

but the strangest noise I've ever experienced was a week ago. Car had been sitting in the garage for a few weeks with e-brake on. I started it, put it in rev. (6 spd man.) released e-brake, let clutch out and heard a very gut-wrenching loud "clank"!! I put the clutch back in, put it in first and rolled it fwd a little then back in rev. and back a little. Noise never came back again. What the heck was that?? Was it the e-brake stuck on then disengaging? It was a terrible metallic clanking noise. The car just turned 40k and has been meticulously maintained it's entire life. Anyone experience this??

sean

Was it moist/damp during storage or was it raining the last time you drove it and parked? The parking brake was likely glued onto the rotor by rust. I've had that happen on other cars I've had but not onbthe boxster.

[SeanZ4]

It was actually very dry. I do suspect the p-brake though. I don't use it very often and had it pulled up to raise the top the last time I drove it. You're sticking p-brake theory is a good one. That's kind of what it felt like.

sean