Sporadic Operation of All Wheel Drive System on Saab 9-7x

The wiring for the transfer case speed sensor can fail causing sporadic operation of the AWD (All Wheel Drive) system.

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Average mileage: 78,581 (115–110,000)
4 model years affected: 2005, 2006, 2007, 2008
17 people reported this problem
11 people shared problem details
2008 Saab 9-7x103,267
When I'm driving And i turn left or right. The car stops or staggers, or locks up. I can't pinpoint if its all wheel drive problem. I've taken it to shops, yes I've taken to a couple different shops and they think rear differential needs replaced(oil) or transmission. I think its what the problem says up top!!
2007 Saab 9-7x110,000
Only rear wheels provide traction in snow- 4WD does not automatically engage as it should
2007 Saab 9-7x1,005
when turning, the tires feel like they're rubbing against something or shaking
2007 Saab 9-7x100,000
Front tires do not engage in snow or slick conditions
2008 Saab 9-7x74,000
Had to replace front differential. The transfer case encoder seemed to be the issue after all said and done. Wheels would lock or shutter when turning into a parking space. It felt like a 4wd truck engaged and then suddenly driving on clear asphalt.
2005 Saab 9-7x84,000
NO traction at all in the snow/ice. It is supposed to engage when the back tires slip...only one of my tires is spinning.
2006 Saab 9-7x87,567
Mine was fine when i ought used. Soon it became a night mare. Locking-up when turning,going backwards or forwards. Clunking, wining when slowing down. So I looked on line and many others have this problem. I changed the Motor on the side of the transfer case and the problem went away for about 3 weeks. $150.00 for the part and not fixed. The parts store has a control box that is for the AWD system that costs $120.00 and I can't find on the 9-7x where it is. So i disconnected the motor on the transfer case, no more problem. DO NOT let a mechanic tell you the differentials need fixed. This proves to myself and others there is nothing wrong with them. The control box i found where is goes, replaced it and all ok. SAAB would not tell me where it was. They wanted $120.00 per hour to replace with my part. I traded it off. Some one else can have the next trouble now. I can say i liked the truck for every thing else.
2007 Saab 9-7x96,687
Going straight is fine, turning sharp right turn started to lock up and made loud bumping noise. Then when turning left same issue. Not fixed yet.
2005 Saab 9-7x115
Front tires grab when going left or right
2005 Saab 9-7x103,000
Car locks up when making slow sharp turns. Feels like engine is going to stop.
2006 Saab 9-7x90,000
The all Wheel Drive seems to be trying to engage when I stop at a Traffic Light that is on a slightly downward slope. I feel a slight nudge click several times. I this the speed sensor, transfer case, transmission. I am ready to do a Transmission Fluid / Filter change and though maybe it is a Hydraulic thing. The vehicle runs great other than that. My tires all match and shift great moving.
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