Can I get the complete vacuum line diagram?

Tiny
MECHANICALGENIUS
  • MEMBER
  • 2005 SAAB 9-3
  • 2.0L
  • 4 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
I am finally getting around to finishing this project. What I am finding hard to come by is a vacuum line diagram. Car is a 2005 SAAB 9-3t Linear. VIN YS3FB49S751036861. I believe the engine is the 175 hp B207L. Thanks so very much for doing what ya'll do here.

The lines I am mostly interested in are the ones that attach to the center of the side of the engine facing front, just above and into the intake manifold. And, to line with curve on the end-it may go to one of the 2 ports (near bottom of one photo). (See pix)
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Saturday, April 19th, 2025 AT 8:56 PM

5 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Yep, good call there, we don't have anything either as far as vacuum line diagrams, sorry. We should be able to figure out where the lines go though. The ports in the last picture, do they go to intake manifold vacuum? Some lines hold vacuum and others are just vent vaper lines FYI.
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Monday, April 21st, 2025 AT 10:54 AM
Tiny
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Both enter the intake manifold. The lower one enters a bowl under and part of the manifold. One might be ported. I can remove the throttle body if need be. Thanks.
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Monday, April 21st, 2025 AT 2:25 PM
Tiny
KEN L
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One of the large ports should go to the brake booster, the other should go to the crankcase ventilation system. Can you pan out the image so I can see more of the engine?
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Tuesday, April 22nd, 2025 AT 10:45 AM
Tiny
MECHANICALGENIUS
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Completed. One port went to the air pump and one to the brake booster, and the other port went to the Evap system, indeed. Here is a link for a video on replacing all of the vacuum lines under the bonnet: https://youtu.be/_cZEeTJxdaE

Thanks for the help, ya'll.

Now to drain the fuel tank and put in some clean hi-octane gas as required, and to give 'er a go.
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Tuesday, April 29th, 2025 AT 6:29 PM
Tiny
KEN L
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Nice work, happy motoring! Great video btw.
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Wednesday, April 30th, 2025 AT 10:43 AM

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