If your vehicle has been running roughly or seems to be losing power, there may be a lack of pressure in one of the cylinders. If your vehicle has been running roughly or seems to be losing power, ...

Last month we acquainted you with a few unique procedures for using conventional tune-up devices—such as a vacuum gauge, timing light and electrical analyzer—for evaluating the efficiency and ...

Forget variable length intakes and variable valve timing, Infiniti is going all the way and introducing variable cylinder compression ratios. The new VC-T turbo engine automatically adjusts between a ...

The compression ratio isn't just a number: it's one of the greatest determining factors in engine building. Compression ratio determines the type of fuel, how much boost, and has a significant ...

Want to know how healthy or unhealthy your engine really is? Get yourself a compression tester and find out. Despite how complex many modern vehicles are, you can do many common repair and maintenance ...

You might talk about it often, but do you really know what compression is all about? Every engine has to make it and those that don't are hurtin' for sure. But, here's the confusing part, for this ...

Every new electric-car announcement is touted as another nail in the coffin of the internal-combustion engine. But the internal-combustion engine keeps fighting back. The latest counterpunch comes by ...

For most cars and trucks, gasoline and diesel engines follow the same four basic steps to make power: intake, to get a mixture of fuel and air into the cylinders; compression, to squeeze that mixture ...

Mazda was forced to drop one of its preferred engine technologies long ago, but technical advancements mean it has been able ...