2003-2011 [Subscribe to Daily Digest] |
The first year(s?) 9-3SS had an electric motor driven air pump for emissions. Later on they learned to meet emission standards without it. What you are hearing is that pump.
posted by 70.126.18...
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.