A faulty ignition module can cause a vehicle to overheat. The vehicle may run and then lose power suddenly due to a rise in the engine's temperature. Once the engine cools, the vehicle will start and run until it overheats again.
In two days the Dow Jones industrial average fell by 25% (ending on Black Tuesday, 29 October). The volume of stocks traded set a record that was not broken for 40 years. When it finally reached its record low in July 1932, the Dow Jones had fallen 89%, and it did not recover to 1929 levels until 1954.
Since end-of-year 1932 (i.e., after the crash): 11.1% (7.0%, plus 4.2%) The average annual stock market return for the past twenty-five calendar years (since 1987) was 10.6% (7.9%, plus 2.7%) The market was up over 40% before the October 19, Black Monday, crash. After a significant recovery, the Dow actually closed up 6% for the year.