2002 Porsche 996 Turbo with 25K. Recently noticed a noise while COLD Starting ONLY. some thing like a worn out bearing noise lasting only for about a minute. Looks like coming the black plastic tube (marked with my paw on the video). All help will be well-appreciated. Thanks in advance.

 

Secondary air pump sounds normal to me. These cars are very noisey.

 

Thanks for your reply. The whining noise only for initial 1 min worries me.

 

I have the noise on my car too. 2001 with about 55k miles. I can hear it turn off after a minute or so, spools down so I know it's shutoff and not just warmed up.

However, I don't think the noise is normal. Mine started making it earlier this year, only when cold started. I plan to ask my mechanic when I bring it in for oil change later this month.

 

if it only happens on cold start, then it has to be emissions related.
keep this thread bumped, im curious to know what it is..
i want to say secondary air pump.. but i know thats on the driver side by the rear wheel...

 

Secondary air pump. Bearing is going bad.

 

I have the same suspicion. The air pump is electrically operated and is located on the passenger side in the engine bay.

 

Yep - that's probably it. Looks to be about $250-$300 for the part and an easy install. Thanks!

 

1000% secondary air pump. I have read somewhere that it can be pulled apart and that a bearing just needs to be greased.

 

If it's not broke just leave it.