Tune-Up Tips

Name That Tune
While today's tune-up is different from that performed in the Sixties and Seventies, there are still a few wear components under the hood that need to be replaced on a regular basis. The scope of the tune-up depends largely on which type of components and systems that reside under the hood of the vehicle in question. Some modern engines don't have anything to keep the shade tree mechanic very busy. If an engine compartment features a powerplant with a one-coil-per-cylinder computerized ignition, iridium-tipped spark plugs, and a hermetically-sealed engine, then technology has prevailed and the tune-up is likely not required.


If, however, an open hood reveals a set of crusty spark plug wires, a ready-to-crack distributor cap, drive belts that look as if they need a haircut, corroded battery posts, and an air filter with an uncertain replacement date, then the tune-up can help bring back lost performance due to normal wear. Determining which components and parts need to be replaced is as easy as turning to an owner's or service manual maintenance schedule or consulting with a mechanic. The procedure for replacing them varies by vehicle. Follow along with the step-by-step for some clues to staying in tune.