Tune Up
Tune-up describes the normal, routine adjustments -- without modifications -- of the engine to meet the manufacturer's specifications. Tune-ups are periodically needed, for example every 12 months or 19,000 km to ensure an automobile runs as expected. Modern vehicles now often run over 160,000 km (or 10 years) without requiring a tune-up. Tune-ups may include the following:
- Re-fastening of cylinder head bolts Adjustment of the carburetor idle speed and the air-fuel mixture
- Inspection and possible replacement of ignition system components like contact breaker, distributor cap and rotor button
- Replacement of air filter and other filters
- Inspection of emission controls
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