Re: What is up with this VIBRATION!?? - Video proof! - Saab 9-5 Bulletin Board - Saabnet.com
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Re: What is up with this VIBRATION!?? - Video proof!
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Posted by CY [Email] (more from CY) on Thu, 15 Oct 2009 11:10:15 Share Post by Email
In Reply to: What is up with this VIBRATION!?? - Video proof!, B Millar [Profile/Gallery] , Thu, 15 Oct 2009 09:06:58
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On my Aero, I've been troubleshooting the vibration as well.

I think the basic things to check are:
engine mounts
air filter
air mass meter
spark plugs
long belt or short belt?
(all of which I've replaced/checked/cleaned, without much improvement.)

I've also replaced the fuel filter as preventative maintenance.

but I've noticed two things about my car that might be clues.
1- When the AC is on, the idle does get worse/lumpier/rougher. Not sure if the compressor bearings might be worn and causing the rough idle, or just amplifying some existing condition.
2- If I hold the RPMs around 1500, the engine is smooth as (insert adjective of your choice: glass, butter, baby's bottom, silk, etc.)

I've kinda run out of next steps to take on my car; maybe we can compare notes to help each other out. If anyone else has any ideas I can try at home before I take it to the indy (which will likely be a month from now when I can spare the time for the drive), your input is appreciated!

-Chris
2k2 Aero 5M (~94k mi)

posted by 12.238.2...

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