Re: Is it Dead? Low Compression Cylinder 4, OIl Consumption - Saab 9-5 Bulletin Board - Saabnet.com
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Re: Is it Dead? Low Compression Cylinder 4, OIl Consumption
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Posted by Jeremy in Denver [Email] (more from Jeremy in Denver) on Sun, 23 Oct 2011 15:39:13 Share Post by Email
In Reply to: Is it Dead? Low Compression Cylinder 4, OIl Consumption, Jeremy in Denver, Thu, 13 Jan 2011 19:09:01
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I had to revive this thread and once more pick your brains for any info that might be helpful with all of my symptoms noted above and a few more.
Two days ago the car started blowing blue/white smoke on deceleration in large quantities. This may be related to the fact that the oil was slightly over-filled (probably 4 or 5oz past the upper line).
Here are the things I noticed:
Pulled the plugs. They all look great. Even cylinder 4 which has lower compression than the others.
Coolant level was low. I have never seen this budge until the smoke, so believe the two are related.
Lots of oil condensate around dipstick making me think the block is over pressurized.
Checked PCV sytem and found a small leak in the PCV tube system between TB and Turbo and fixed it. (did not effect smoke).
Drained the oil to look for any coolant/mayonnaise, did not find anything.

At this point I think there are a few things it could be:
Excessive blow by at ring seals (Not sure how this explains coolant level.)
Head gasket blown
Head bolts may need retorquing (it is a 2001 that falls within the specs).
Turbo may be bad. (Just replaced in Oct of 2010).

Could you guys help me out if you think you may smell the smoking gun and how to check? I have posted a video to you tube in the links below so you can see the smoke effect if it is helpful.
I would take her to the shop, but I am running massively low on funds at this point (a broken car is all I need)...





posted by 67.41.142...

Video of my 2001 Saab 9-5 Aero putting out smoke on You Tube

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