PLZ 2004 AStro Passanger Problem

Im having a vibration, it starts at 50 miles and gest worse when you go faster, and its terrible when its under load of people. I alreaddy tried new tires and wheels, all balanced and everything, the dealer doesnt know whats the problem. SO guys can you give me a idea what might be the problem

Try your idler arms. They fail all the time on this vehicle. There is one underneath on each side just about a foot beyond the front bumper. Push up and down on them. There should be very little play. Bad ones go up and down a quarter inch or more.

A dealer or or other garage should have been able to locate this almost immediately.

Good luck.

TWD