A lawsuit filed against General Motors claiming its faulty ignition switch was responsible for a crash involving a 2007 Saturn Ion has been thrown out by the judge presiding over the case. The ...

General Motors knew about a defect in its ignition switches eight years ago and changed the design of an internal part, but never told federal regulators or the drivers of its cars, according to ...

The demands for better emissions and fuel economy in the mid 1970s necessitated leaner fuel mixtures. These leaner mixtures required greater voltage and more spark to ignite. This challenge led GM ...

In February, General Motors issued sweeping recalls for several models suspected of having a faulty switch that automatically turns the car's engine off and prevents air bags from deploying — while ...

Editor's Note: Way back in March of 1998, GMHTP ran "Opti-Spark" by Ray Bohacz, an engineering-level dissection of GM's Opti-Spark distributor. This evolutionary ignition component was a bridge ...