The Ignition System

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The Ignition System

Just at the time the battery output decreases and the engine places an added drain on the starter, the ignition system is called upon for an extra source of ignition voltage to fire the spark plugs. It may take up to 47,000 volts to ignite the fuel/air charge inside the cylinders. If ignition components are performing at their peak, "ignition bankruptcy" is averted. Periodic tune-ups, maintenance and repairs are an important part of preventive maintenance.

The basic tune-up includes engine analysis plus replacement, as needed, of ignition, fuel system and emission control components.

On older engines with distributor points and condenser, these are replaced along with the spark plugs and, if necessary, the spark plug wires, cap, rotor and other worn components.

Also check your spark plug wires for "wear and tear." Replace them if they look bad or have high mileage on them.

Most cars have computer controlled electronic ignition systems which eliminate several of the components commonly replaced on older cars.

Whether the system be of the older type described above or state-of-the-art electronically controlled ignition, periodic checks and maintenance are required.

An engine which runs poorly usually will start poorly if gas mileage falls, the engine hesitates or any other malfunction is noted, get the car checked and serviced.