How do you check leveling sensor? The rear of the car rides low on 1997 Cadillac Seville SLS

The car rides low but when i had the car in for oil change it leveled after coming down from the lift. After driving about 9 miles it rides low again.

by in Harrisburg, PA on May 21, 2010
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1 answer
ANSWER by , May 21, 2010
it is called a height position sensor. have it checked by someone who is familiar with the system. Roy