Intro: A graph of your car’s idle speed shouldn’t resemble architectural plans for a new Cedar Point roller coaster. Once the car warms up to normal operating temperature, it should run in a smooth ...

I inherited my elderly dad’s 1998 Lexus ES300 a few years ago. It has only about 65,000 miles on it and I’ve never had any major engine problems. But starting about a year ago, it occasionally stalls ...

Your engine feels calm at a stoplight because a hidden idle system keeps fuel, air, and spark in balance. That quiet stability is not luck, it is the result of sensors, valves, and software working ...