External filter gets only a part of ATF that is circulating inside the transmission, by design. All that escaped gunk will be flowing through the valve body, that's why transmission is dying later. The colder the ATF, the higher is the pressure, the lesser amount of ATF is diverted by the ball valve to the cooler.
Just be aware.
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AW55-50SN woes-easy to repair? Topic is solved
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- Posts: 441
- Joined: Sat Sep 01, 2007 6:12 pm
- Year and Model: 2005 XC70
- Location: Kitchener, Ontario
- Has thanked: 3 times
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Re: AW55-50SN woes-easy to repair?
Hopefully the repeated flushings via dipstick hole will clean things out well enough. Time will tell.
1994 850 5-speed wagon, retired at 400,000 km
1998 V70 AWD 5-speed, retired at 358,000 km.
2005 XC70 275,000 km - daily driver
1998 V70 AWD 5-speed, retired at 358,000 km.
2005 XC70 275,000 km - daily driver
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- Posts: 441
- Joined: Sat Sep 01, 2007 6:12 pm
- Year and Model: 2005 XC70
- Location: Kitchener, Ontario
- Has thanked: 3 times
- Been thanked: 0
Re: AW55-50SN woes-easy to repair?
The job is now complete, and the car is back on the road, with 100 km of driving so far. It shifts fine when warm, but has does still have some random flares when cold. The horrible transmission howling sound on startup is now completely gone. I had to reset transmission codes twice in the first couple km's of driving, but no further codes have been set since. Hopefully this 'fix' buys us enough time to source a suitable replacement vehicle. Many thanks to those adventurous souls that posted this information.
1994 850 5-speed wagon, retired at 400,000 km
1998 V70 AWD 5-speed, retired at 358,000 km.
2005 XC70 275,000 km - daily driver
1998 V70 AWD 5-speed, retired at 358,000 km.
2005 XC70 275,000 km - daily driver
-
- Posts: 441
- Joined: Sat Sep 01, 2007 6:12 pm
- Year and Model: 2005 XC70
- Location: Kitchener, Ontario
- Has thanked: 3 times
- Been thanked: 0
Re: AW55-50SN woes-easy to repair?
A quick update: The odometer has now rolled past 700 km since the 'fix' described in this thread was applied. The transmission has settled down nicely, with flare issues gone. Considering the car was not drive-able, and destined for the recyclers a couple weeks ago, the transformation is amazing.
1994 850 5-speed wagon, retired at 400,000 km
1998 V70 AWD 5-speed, retired at 358,000 km.
2005 XC70 275,000 km - daily driver
1998 V70 AWD 5-speed, retired at 358,000 km.
2005 XC70 275,000 km - daily driver
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- Joined: Sat Aug 21, 2010 12:20 am
- Year and Model: Lots
- Location: Melbourne Australia
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Re: AW55-50SN woes-easy to repair?
I missed this journey as you posted. Well done!
- These users thanked the author precopster for the post:
- renns
Current cars:2002 XC70, 2006 Ssangyong Rodius (Stavic), 2006 XC90 2.5T, VW Transporter 2.5TDI
www.precisioncarmodules.com.
www.precisioncarmodules.com.
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- Posts: 441
- Joined: Sat Sep 01, 2007 6:12 pm
- Year and Model: 2005 XC70
- Location: Kitchener, Ontario
- Has thanked: 3 times
- Been thanked: 0
Re: AW55-50SN woes-easy to repair?
Well over a thousand km's now, and am starting to have faith in the old girl once again. We've been shopping for newer replacements (Venza, Murano, RX-350...), but the XC70 is hard to replace - Luxury, loads of interior space, 3500 lb towing capacity, AWD...
1994 850 5-speed wagon, retired at 400,000 km
1998 V70 AWD 5-speed, retired at 358,000 km.
2005 XC70 275,000 km - daily driver
1998 V70 AWD 5-speed, retired at 358,000 km.
2005 XC70 275,000 km - daily driver
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