96 Grand Voyager pulls to the left while driving

My 96 Grand Voyager has a stronger than light pull to the left while driving. I mean if the expressway curves to the left, I can let go of the steering wheel and the van will follow the road. Is this a front end alignment problem or a rotate and balance the tires problem?

it may be an alignment issue it may be an under inflated tire or my guess a sticking caliper.

Be a shame to spend bucks on an alignment only to find it's a bad tire. Simple things first. Rotate the tires front to back and see if that changes anything. Unless you feel a intermittent shimmy forget the balance.

Could be "radial pull", google that and see what you come up with.