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Old 03-19-2007, 02:44 PM   #1
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Hi folks my name is Ro Im the new owner of a 2000 ssei on friday I had a repair shop replace the rack and outer tie rod ends and I got a wheel alignment on saturday I started having problems every time I turn the wheel all the way in any direction (like turning at a intersection) the brakes come on and the message center says STABILITY SYSTEM ACTIVE. I took it back to the repair shop but they couldnt find anything wrong.
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Old 03-19-2007, 03:26 PM   #2
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The most common cause for the problem is the steering position sensor. The second is the wheel speed sensors (WSS). As they worked in the area of both, either could be your problem if they didn't use the proper care.

Once the rack is disconnected from the steering shaft, it will spin freely. If they did not keep the steering column in the same position, that will damage the steering position sensor.

When they did the tie-rod ends, there could have been some damage done to the wiring to the WSS that are part of the front bearing hubs.

Keep in mind that I am not accusing the shop of shoddy workmanship. These are things that COULD have happened. Each of those problems have been known to just show up on its own, and the timing could be coincidental.
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Old 03-19-2007, 03:27 PM   #3
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My car did this exact thing after replacing my rack n pinion. Did you get a NEW Rack or a REBUILT Rack??? This is important! With the rebuilt rack, my car had that same problem, but once they put a new one from GM in, it didn't do it anymore. They said that alot of places don't rebuild the racks properly, and thats what causes that problem.

Also not all Bonneville'* according to GM have Magna-steer. If you put a rack in that doesn't have magna-steer into a vehicle that has this option, that can also cause this problem.
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Old 03-19-2007, 03:43 PM   #4
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The FSM lists the following as potential causes for unwanted stability system activations:

A loosely mounted yaw rate sensor
An intermittent faulty steering wheel position sensor
An intermittent wiring harness problem
A chassis alignment that is grossly out of specification
The wrong EBCM installed
The wrong steering gear rack installed

If your car didn't do this before servicing then my money is on the rack, however as Archon mentioned, the steering wheel position sensor is also a common source of grief.
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