2007 Buick Rainier Q&A

2007 Buick Rainier Question: Why does rear suspension system keep adjusting itself?

Vehicle is not sitting low like in some other cases mentioned. Also notice a clunking sound sometimes when going from one surface level to another, i.e. backing out of garage which has a lip onto the driveway. Sometimes sound comes from left front of vehicle, other times from rear right of vehicle. -
Answer 1
poss air leak at bags or lines,very common and costly issue -
Comment 1
When you say "costly", what's a ballpark repair cost? -
Comment 2
if it needs everthing poss 1500.00 -