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Detroit • A man's complaint that his Chrysler minivan stalled unexpectedly after refueling has brought an inquiry from U.S. safety regulators.

The National Highway Traffic Safety Administration says it will look into the problem that could affect 160,000 Dodge Grand Caravan minivans from 2007 and other model years.

The agency says it will study how often the problem happens and whether it occurs in other similarly equipped minivans. The inquiry will determine if a formal investigation should be started.

In his complaint, the man told the agency the van stalled on his wife while she was driving with children on a freeway. The man cited eight complaints of similar problems from other drivers. The agency doesn't identify people who file complaints.