One problem related to front suspension has been reported for the 1998 Chevrolet Venture. The most recently reported issues are listed below.
Van shimmies/vibratates at 30+ mph since 1 month after purchasing. Have put on new tires, dealers say nothing wrong, this is normal for vans/trucks (not a pleasant ride). Defrosters will not defrost side windows, dealer says there's nothing wrong. While backing down steep driveway with 3 people in van, van is hitting bottom. Dealer installed new shocks/springs, but still hits bottom.