The Chevy Volt concept is hot stuff. A plug in electric car with extended range provided by its own onboard generator is an idea whose time has come: the simple elegance of its "best of both worlds" design is the type of cutting edge technology we once expected from American automakers.

Let’s go out to the shop where we’ll demonstrate actual circuit operation and perform a few quick tests that you can use right away to solve common problems. This article is the practical companion to this month's Voltage Drops - Part Two article.

by-Sam Bell and Ralph Birnbaum

Don't know about you, but cam and crank seal replacements are standard on all timing belt replacements we do. At 100k miles, these seals may not be leaking yet, but most are heat-hardened to the point where they will probably leak sooner than later.

We've all seen black clouds billowing from some diesel exhaust stacks, and those of us who've changed diesel engine oil know that it looks more like ink when it comes out than it does used lubricant. As a result, diesels have gained a reputation in some circles as "dirty" engines. Vehicle manufacturers who think diesels are a good long term solution for our transportation needs, are out to change that image.