General Motors (NYSE:GM) enlisted the help of a team at NASA to conduct a review of the automaker’s ignition-switch testing, according to a source familiar with the recall investigation. The nation’s ...

Almost two weeks ago, GM started shipping redesigned ignition switch kits to Stateside dealership service departments. But are these all-new units safer than their potentially defective predecessors?

Consulting materials engineer Mark Hood shows the ignition assembly which has a faulty 2005 ignition switch (black piece at left), in the mechanical testing laboratory at McSwain Engineering, Inc. in ...