Tune-Up Tips

The term “tune-up” is an outdated concept, required by cars manufactured during the 70s. Today’s vehicles need regular preventive maintenance, but some car dealers continue to recommend major tune-ups.

Here’s a checklist of things of items that you need to consider during a preventive maintenance check.

  • Check the engine and scan for any current, pending, or past fault codes. Many new cars have an on-board diagnostic system for this, or should be able to provide the necessary equipment.
  • Check the battery and charging voltage.
  • Check the power balance or dynamic compression to identify any mechanical problems.
  • Check engine vacuum to detect leaks.
  • Check operation of the fuel feedback control loop.
  • Check exhaust emissions.
  • Verify idle speed.
  • Check ignition timing.

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