One problem related to engine knocking noise has been reported for the 1999 Chevrolet Venture. The most recently reported issues are listed below.
I am the original owner of a 1999 chevy Venture Mini-van. We had the oil changed at an independent mechanic every 3,000 miles. Last week my wife was driving and heard a knocking noise. The van stalled and we had to have it towed to our mechanic. He looked at it and said there were major internal problems. We then had it towed to our dealer and were told it needs a new engine. Our mechanic said since we faithfully got the oil changed there is no reason we should need a new engine. The dealer gave us an estimate of $5,300 for the new engine. We called gm customer service to see if they would help pay some of the cost. We just mailed them a copy of all our maintanence and are waiting for a reply.