Vacuum hose diagram

It appears to be a known issue.
Blue smoke is oil.
White smoke is water.
Black smoke is rich mixture.

Blue smoke is probably from the turbo bearings.

https://www.google.com/search?q=saab+9-5+P0303

Vacuum Hoses

https://www.google.com/search?q=2011+Saab+9-5+Turbo+4.+vacuum+hose+diagram

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https://www.google.com/search?source=univ&tbm=isch&q=is+there+a+vacuum+hose+diagram+for+a+2004+jeep+4.0+grand+cherokee?&hl=en&sa=X&ved=2ahUKEwirsKLXp8jpAhWJohQKHSxQDhkQsAR6BAgGEAE&biw=1326&bih=627

here are two basic vacuum diagrams from a 390 engine, one or the other should work for you depending on your distributor vacuum advance setup. good luck

Here's a link John on your vacuum diagram.

Here's a link to your vacuum diagrams.

Hi Jon Jon, Did you also replace the spark plug? Changing all would be a good idea. Regards John

Repair Guides Vacuum Diagrams Vacuum Diagrams AutoZone com

Scroll down to your model.

Hi John:
I suggest to check this diagrams...






Fig. 14: Vacuum hose routing-1987 2.9L engine - zoom link here





Fig. 13: Vacuum hose routing-1987 2.3L engines - zoom link here

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There is usually only one vacuum connection on a turbo 350. It connects to the modulator valve on the side of the transmission. This valve uses engine vacuum to determine transmission shift points. The other end usually connects to a direct engine vacuum source. A "direct source" is a hose connection on the throttle body that has a vacuum signal available at idle. If it doesn't, then it's considered a "ported source".I have had some experience with the chevy blazer/gmc jimmy series, both the early large body models and the small body versions. The stalling when put into gear complaint is most likely caused by a bad intake gasket which is common on the older versions with the small block V8 motors. The newer versions with the vortek motors also had allot of trouble with throttle body gaskets. If these problems have not already been addressed, then there's a good chance that it will take care of the problem. Other possible sources of vacuum leaks are the pcv hose that is hard and brittle. Check the hose out carefully, especially the side that normally faces the engine. Check the throttle body bolts (carburetor bolts) for tightness. I hope that this information is helpful to you. Thank you for using Fixya.com.

Please I don't seem to get you right.

What and who do you refer to?

Cheers.