How long do the rotor and distributor cap last?

The distributor rotor and cover transmit voltage from the ignition coils to the engine cylinders. From here, the air-fuel mixture ignites and drives the engine. The coil is connected to the rotor and the rotor rotates inside the distributor cap. When the tip of the rotor passes through contact with the cylinder, a high voltage pulse travels from the coil to the cylinder through the rotor. From there, the pulse travels from the gap to the spark plug wire, where it eventually ignites the spark plug in the cylinder.

The distributor rotor and cab are regularly exposed to high voltage, which means that every time you turn on the car, electricity flows through them. Because of this, they wear out from time to time. After replacing the distributor rotor and cap, the entire ignition should be checked to make sure everything else is in good working order.

Preventive maintenance is the key to detecting broken rotor and distributor cap. Every time your car goes through a routine maintenance or is serviced by a professional, the ignition must be carefully checked. Also, this part is more likely to fail if you drive through a deep puddle because water will get into the distributor cap and cut off the electrical current. In this case, the cover may not need to be replaced, it may just need to dry out for a certain period of time. If you're unsure or start noticing any problems starting your car, you can always schedule an inspection with a professional mechanic. They will thoroughly inspect your system and replace the distributor rotor and cap.

Because the rotor and distributor cap can fail over time due to being in harsh environments, it's important to know the symptoms this part will emit before it fails completely.

Signs that you need to replace the rotor and distributor cap include: