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.
It has been 25 years since Black Monday â Oct. 19, 1987 â when the Dow plunged 500 points, its biggest one-day drop at the time, leaving investors stunned. But it certainly wouldn't be the last time the stock market would be hit with turmoil. Here is a look at some of the biggest crashes in history and the events surrounding the plunges. With files from Reuters, Government of Canada, Globe and Mail archives.