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Eric
Eric, Automotive Repair Shop Manager
Category: Saab
Satisfied Customers: 30549
Experience:  20+ yrs. experience as repair shop manager and technician.
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bluish smoke from tail pipe @ startup and stopping and going.

This answer was rated:

bluish smoke from tail pipe @ startup and stopping and going. there is no noise from engine, has very good pick up going up a hill and on the highway smoke disappears when highway driving
Hi,

What is the year and model of your SAAB?

What is the engine size?
Customer: replied 3 years ago.

2000 9.5 cyl 4 turbo

Hi,

Ok, on your engine, this is usually due to either a sticking crankcase ventilation check valve, faulty oil separator or worn valve seals and guides.

The first place to start is test the check valve for air flow. If not getting good flow thru it, then replace it.

If ok, then oil separator should be checked and finally dry and wet compression test for worn valve seals and guides.



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