Posted on 8/29/2025

You might hear the term “tune-up” and wonder whether it still applies to modern vehicles filled with sensors, computers, and digital diagnostics. The truth is, while the nature of tune-ups has evolved, the need for periodic engine care remains just as important. Ignoring signs that your car needs attention can lead to performance issues, reduced fuel economy, and bigger repair bills down the road. So how do you know if your car is due for a tune-up? Let’s take a closer look at what today’s tune-ups involve and what symptoms to watch for. What Is an Engine Tune-Up Traditionally, a tune-up included replacing spark plugs, adjusting the timing, and checking fuel and air filters. Modern engines don’t need as much manual adjustment, but many of the core services remain. Today’s tune-ups focus on restoring engine efficiency, updating worn parts, and ensuring everything is operating in sync. This may include: Replacing spark ... read more