One problem related to engine cooling system has been reported for the 1998 Honda Passport. The most recently reported issues are listed below.
The contact owns a 1998 Honda Passport. The factory cooling tools were inserted in the engine block electrolysis and corrosion was present which rendered the cooling system inoperative. The vehicle was taken to a dealer who stated that the warranty was no longer valid that the vehicle was too old to be repaired. The manufacturer also informed him that the vehicle was too old and offered no assistance. The VIN was unavailable. The failure mileage was 98,000.