_Defective distributor cap:_ The distributor cap routes electricity to the spark plugs. A cracked, burned, or otherwise damaged cap can prevent the spark plugs from getting the power they need to fire.
Faulty rotor: The rotor inside the distributor rotates and transfers electricity from the distributor cap to the spark plugs. If the rotor is worn or damaged, it can prevent the spark plugs from firing.
Broken distributor drive gear: The distributor drive gear is responsible for turning the distributor rotor. If the distributor drive gear is damaged, it can cause the distributor to lose its timing, preventing the spark plugs from firing.
Worn spark plug wires: The spark plug wires are the cables that connect the distributor cap to the spark plugs. If the spark plug wires are damaged, such as being cracked, frayed, or loose, they can prevent electricity from reaching the spark plugs.
Bad spark plugs: If the spark plugs are worn or damaged, they may not be able to produce a spark, preventing the engine from starting.