[Dave1081]

Bought a well preserved 1992 LeSabre Custom (116K) last week and am noticing a problem with steering. When turning hard right at very low speed (parking etc) I feel a thump in the right front wheel and briefly hear a hum (1/2 second or less). Sounds like power steering hum. Has happened a few times.

Today, it happened turning out of a parking lot and steering wheel became "off". Had to keep wheel turned more than slightly to left in order to keep car driving straight - even in an absolutely flat parking lot. After another thump and hum while parking, the steering wheel straightened out and for now it's fine again. Any idea what's going on?? Doesn't seem to be any play in the steering. Is it tie rods? power steering mechanism? are my wheels going to fall off? Help!