Startup noise?
 

Hello everyone, 1st time posting here. Really like the site it's helped so much so far already.

I have an 01' boxster (2.7) just a tad over 100k on the clock. It's been making a high pitch wine on startup...but if I turn the car off and turn it back on it goes away. Can't seem to track it down. I've kept up on maintenance so far. Fresh oil change and all that. And this issue just started when it started to get juusssttt a lil cold. I'm located in south Texas.

-any help would be appreciated.

Accessory belt slipping? Take the front engine cover off to see if is that. Behind the seats, carpeting and sound insulation has to be removed.

Every time I've heard a whine it was the water pump going out. One would only leak at startup.

The sqeal noice at the thart up on the older Boxster is fairly common.
Take a look at this video and if the noice is same, the repair is easy by claning & lubing OR changing the starter:
https://www.youtube.com/watch?v=eJ9qnnf2kWU

Mine makes a whine on cold startup that concerned me at first. After looking into it, it was the Secondary Air Injection Pump. Which on a cold start turns on for about 90 seconds. Then shuts off. Apparently it is suppose to make that noise.

The issue is the bendix on the starter gets stuck and the engine drags it and throws it back with a squeeling sound, you need to remove the starter and clean it and lubricate the pinion gear and shaft, very common problem, I have the same issue but I have not get the time to fix it but will report back