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Q: my power steering blocks each time I have to maneuver in a parking, not when I'm just driving

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my power steering blocks each time I have to maneuver in a parking, not when I'm just driving

My car has 130500 miles.
My car has an automatic transmission.

A: If by "blocks", you mean the whee...

If by "blocks", you mean the wheel turns smoothly then at some point in turning it, the wheel suddenly goes stiff and is hard to turn, it it a common symptom of GM products of that era having a bad rack and pinion steering unit.

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