All of a sudden my car sounds/drives perfect?

[Chboro]

Hi,
I just started experiencing that startup whine. I have had my Boxster since October 2015 and I started noticing the whine about a month ago. From what I've read the outside temperature doesn't have anything to do with it. Other than the startup whine it is running perfectly. And, I am or maybe was planning on putting about 600 miles on it this weekend. Looking for advice from those of you with more owner experience. I do have another vehicle to make the trip, just would prefer the more fun one.

[kk2002s]

First make sure your secondary air pump is working correctly.
It should run for about 90 seconds on a cold startup
It is the Vacuum cleaner sound you hear.
If there is also a high pitch whine when the air pump is running then you maybe hearing the Air pump's Bearing whining due to no grease.
You can take the Air pump apart and re-grease the bearing.
Mine has been Whine free for over 2 years since re-greasing

[Chboro]

Boy, you are right on about the time. I started it up and put a stopwatch on it and it went off after 97 seconds. Since I've only owned it since Oct 2015 I have not done too much to it myself other than oil & filter changes. Is Sec Air pump easily accessible? I may consider the re-greasing option. Thanks for your response. Oh, I should mention there is no noise after it winds down and then goes off.

[kk2002s]

Originally Posted by Chboro

Boy, you are right on about the time. I started it up and put a stopwatch on it and it went off after 97 seconds. Since I've only owned it since Oct 2015 I have not done too much to it myself other than oil & filter changes. Is Sec Air pump easily accessible? I may consider the re-greasing option. Thanks for your response. Oh, I should mention there is no noise after it winds down and then goes off.

Very easy to get to. Right side, top of engine bay. Remove 1 hose, 1 electrical plug and 3 bolts.
The Air pump uses 3 vibration isolators (2 threaded posts sandwiching a rubber piece)
1 of mine was torn. These Porsche isolators are about $25+ each but from Granger you can get a similar one for a couple bucks each
Pump comes apart fairly easy. I used a Needle adapter on a grease gun to get past the bearings Seal

2000986s - This is not normal in any weather. You need to look into either MAF or cleaning your Throttle body and Plenum Tubes

[2000986s]

Ok cool. I'm having my AOS, o2 sensor, and motor mounts done this week so I'll have the throttle body cleaned as well. Thanks!