The front struts may show signs of wear, or be excessively bouncy ride at freeway speeds. This may begin to occur at around 75,000 miles.Google+
Car Problem Reports
Pontiac Montana Front Struts May Wear at 75,000 Miles
Pontiac Montana Problem
Average Mileage: 108,849 mi (28,548 mi - 176,000 mi)
Visitor, 2003 Pontiac Montana, 176,000 mi
bounce, sway, bottoming out. hitting a crack in pavement is like hitting a curb. thinking of disposing of this otherwise great car for the problem. cost over $2000 to replace two struts, two shocks and four springs.
van drives really bouncy