What’s Involved in a Car Tune-Up?

Is your car in need of a tune-up? While the term "tune-up" has evolved over the years, the purpose behind it remains the same: to keep your vehicle running smoothly and efficiently. Back in the day, a tune-up involved checking ignition timing, adjusting idle speed, and fine-tuning fuel mixtures. Today, with advanced computer systems managing many of a car’s functions, the process has shifted toward more targeted diagnostics and component replacements.

So, if you're wondering whether your newer car still needs a tune-up, here's what you should know:

Only When Needed

Modern vehicles are designed to be more reliable, and many manufacturers have moved away from traditional tune-ups in favor of scheduled maintenance. However, if you start noticing issues like difficulty starting, poor fuel efficiency, hesitation, stalling, or failing an emissions test, it might be time for a professional inspection.

It's important to follow your vehicle’s recommended maintenance schedule, as many tune-up-related services are included during these routine checkups. But if something feels off, don’t wait—addressing the problem early can prevent bigger, more expensive repairs down the road.

What to Expect During a Tune-Up

Today, a tune-up is often referred to as an “engine performance analysis.” This diagnostic-focused service includes the following steps:

  • Checking and charging the battery voltage.
  • Testing engine power balance to identify issues like leaky valves, worn piston rings, or a damaged head gasket.
  • Performing an engine vacuum test to detect air leaks or exhaust restrictions.
  • Scanning for fault codes using a diagnostic tool.
  • Adjusting idle speed and idle mixture settings.
  • Testing exhaust emissions and ignition timing.
  • Inspecting hoses, belts, and fluid levels.
  • Replacing spark plugs, distributor caps, rotors, and air/fuel filters when necessary.

While some of these tasks may overlap with regular maintenance, it’s best to bring your car in as soon as you notice any unusual behavior. Delaying repairs can lead to more serious problems and higher costs in the long run.

If you're unsure whether your car needs a tune-up or just a routine service, trust the experts at Da Silva. We provide quality, affordable automotive care in Naugatuck. Call us today to schedule your appointment and keep your vehicle running at its best.

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