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Old 12-01-2013, 06:56 AM   #1
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moderate to heavy oil leak

Hi fellas I just bought a 2000 aero that has a oil leak on the passenger side of the block. PO said it was a oil pan gasket. I have not jacked it up yet, I thought i would get some feed back as to what to look for before I attempt to fix it. I do not know what the known issues of the Saabs just yet as I am new to the Saab world. My son bought a 9000 Aero and i was impressed with it so I bought one right lol. So this would actually be the first time working on a Saab. I plan on working on it today so feed back will be very appreciated! Thank you and i will continue to post what i find out. Oh also i went on Youtube and to me it maybe be the oilpump sealNot sure but the more info the merrier!!!
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Old 12-01-2013, 08:07 AM   #2
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A good start is to pressure wash the thing and look for the fresh leak.

The oil pan does not use a gasket but an anerobic sealant. Somebody will chime in with the best stuff to use.

While it is off you need to check the pick up screen and replace the o rings for the oil pick up as well.
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can be prone to failure due to increased localized stresses in the hole penetrations
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Old 12-01-2013, 09:14 AM   #3
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A good start is to pressure wash the thing and look for the fresh leak.

The oil pan does not use a gasket but an anerobic sealant. Somebody will chime in with the best stuff to use.

While it is off you need to check the pick up screen and replace the o rings for the oil pick up as well.
Thanks that is a good idea!... However its at the bottom and leaks with a good drip. Its about a 12" or better oil spot when it sits overnight, I thought i mt be able to see it drip while it was on jack stands. Also is the process straight forward as far as pulling the pan?
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Old 12-01-2013, 11:09 AM   #4
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Pulling the pan is a medium DIY job. as Tweek said, clean off the area and use some brake clean or other on tough spots to identify the problem. Could be the plug, cracked pan or bolt loose. I would start with the plug and see if its tight or stripped, there should be a crush washer (usually copper washer).

It also could be running down the block from the Oil sensor, turbo line, etc.

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Thanks that is a good idea!... However its at the bottom and leaks with a good drip. Its about a 12" or better oil spot when it sits overnight, I thought i mt be able to see it drip while it was on jack stands. Also is the process straight forward as far as pulling the pan?
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Old 12-01-2013, 12:50 PM   #5
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You may have a cracked pan or other. Seems like alot of oil.
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Quote:
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can be prone to failure due to increased localized stresses in the hole penetrations
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Old 12-01-2013, 04:04 PM   #6
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Is the oil also anywhere around the subframe on the passenger side? Maybe around the plastic wheel well shield?

My moms 95 is also doing this and I'm suspecting the front main seal.
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Old 12-01-2013, 06:56 PM   #7
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I believe this is the stuff that Tweak is talking about (which most people use) Permatex Anaerobic Gasket Maker - Permatex 51813 | FCP Euro

I've personally had good luck with RTV Black (Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker - Permatex 82180 | FCP Euro) and letting it cure 24+ hours before adding oil. Not everyone agrees this is the best way to go, but I've had luck with it on Saabs and other vehicles in the past...

I'm actually currently trying to track down an oil leak on my 9-5 as well, only on the Drivers side. Best of luck.
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Old 12-01-2013, 07:02 PM   #8
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Front mains and oil pump o- rings can leak ALOT when they go bad.

Make sure your crank vent system is up to date. When the bad hoses collapse they can blow seals and force oil out.
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Old 12-01-2013, 07:15 PM   #9
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Timing covers leak ALL the time on these cars, clean it off. Pinpoint the leak... Repair the leak .
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Old 12-02-2013, 05:14 PM   #10
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Front mains and oil pump o- rings can leak ALOT when they go bad.

Make sure your crank vent system is up to date. When the bad hoses collapse they can blow seals and force oil out.
Do you have pics of this area? Im new to wkn on Saabs. Thanks
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Old 12-02-2013, 05:16 PM   #11
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Thanks to all for the info!! It was the front main seal and oil pump housing seal.
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Old 12-22-2013, 06:46 PM   #12
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While your at it....
Check the timing chain tensioner for leaks. It can leak form the big washer or the little washer.
My 04 Arc that I just rebuilt was leaking form the small washer. Some how I missed replacing that one. It looked fine but when I bent it it showed the crack. It must have opened up under tightening pressure. It leaks allot.
Someone mentioned power washing the motor.... I hit it with engine degreaser and drive to the car wash (6 blocks) and do it there. You don't want that stuff in your driveway!
Or spray it on when you get to the car wash and let it sit for 30 min or so. (Don't let the car wash owners see you doing that... They may not like it. )
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