Quote:
Originally Posted by Jasper7821
I bought a 2001 986 a few months ago and the prior owner did a lot of work to it, IMS and all kinds of other things. The engine runs great.
Lately upon cold startup some other thing runs for a few minutes until warmed up.
I can hear a little while during that few minutes. If I start the car cold then turn it off I can hear like a bearing whine spool down.
Any advice on what this could be?
Edit: I just talked to the Porsche service and they said it sounds like the emissions secondary air pump and if it's not throwing a check engine light then don't worry about it. He said it just leans out the air/fuel mixture for emissions until the catalytic converter is up to temperature.
And If it does go out it's not a bid deal, it would just make the car run richer until it's warmed up.
Still, if it if that, should I just leave it or attempt to fix it?
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Sounds like the air pump. I'd leave it.
