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Date: Wed, 12 Sep 2007 09:09:29 -0400
From: "SilverSurfer" <>
Subject: Re: 96 9000CS - Whining sound from Automatic Trans.

"Piers" <> wrote in message > SilverSurfer wrote: >> Good morning, >> >> My 1996 9000CS has developed a whining sound that is coming from the >> Automatic Transmission. >> The car has 176000km, the transmission is original. >> I know these cars have some auto trans. issues but but the only change I >> have noticed is the downshifting is a little bit slower and rougher than >> usual. Otherwise the it functions normally. >> >> Any assistance would be appreciated (especially links to sites dealing >> with 9000 Auto transmissions.) >> Thank-you >> Kirk R. >> >> >> > > Hi Kirk, > > If you've not already done so, replace the transmission oil filter and > change the transmission oil (aka automatic transmission fluid or Dexron). > Without special equipment you can only get around 4 of the 8 litres out at > any one time so if the fluid that comes out looks dirty or dark (should be > pinkish-red) run the car for a few miles and change some more (with every > change you are diluting the old oil). > > With the last change add some "Lubegard Red" to the oil - that's the only > (as far as I know) additive that Saab ever endorsed for this transmission. > It was prescribed for a particular whine in the transmission. If you go to > you can find a copy of the Saab bulletin. > > Two other more time consuming but fairly inexpensive fixes are failing > governor seals (can be replaced without removing the trans) and a broken > accumulator spring in the valve body (again this can be replaced in situ). > > Beyond those, I'm not sure, other than taking the car to a specialist who > knows ZF transmissions. Where are you in the world, Canada? > > Hope this helps. > > Piers Hi Piers, I am located in London, Ontario, Canada. I did take the car to the local SAAB dealer, they immediately told me to replace the transmission. ($6000.00 - 7000.00) (Dealer did not inspect, just listened to the noise.) As I mentioned in the first post, the transmission does function as it should. I'm going to try your suggestions, starting with the ATF and filter change. If it turns out to need replacing I may just have it rebuilt. I have also been on the lookout for a used tranny, but seem to be hard to find. Thanks for the response, Kirk,

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