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When should I replace my car distributor?

The distributor is a critical component in your car's ignition system, responsible for distributing the electrical current from the ignition coil to the correct spark plug at the right time. Knowing when to replace your car's distributor is essential for maintaining optimal engine performance and preventing costly breakdowns.


Signs Your Distributor Needs Replacement


There are several telltale signs that indicate your car's distributor may need to be replaced:



  • Misfiring or rough idling: If your engine is misfiring or running rough, it could be a sign of a failing distributor. This can cause uneven fuel combustion and reduced engine power.

  • Difficulty starting: A faulty distributor can make it difficult to start your car, especially when the engine is cold.

  • Decreased fuel efficiency: A malfunctioning distributor can cause your engine to run less efficiently, leading to decreased fuel economy.

  • Irregular spark plug wear: If you notice that your spark plugs are wearing unevenly, it may be a sign that the distributor is not properly distributing the electrical current.


If you notice any of these symptoms, it's important to have your car's distributor inspected by a qualified mechanic as soon as possible.


When to Replace Your Distributor


Most car manufacturers recommend replacing the distributor at specific mileage intervals, typically between 60,000 and 100,000 miles, or every 4-6 years, whichever comes first. However, the actual lifespan of a distributor can vary depending on factors such as driving conditions, maintenance history, and the quality of the original equipment.


It's important to note that while some distributors may last longer than the recommended replacement interval, it's generally a good idea to replace the distributor as part of a routine maintenance schedule to avoid unexpected breakdowns and ensure optimal engine performance.


Replacing Your Distributor


Replacing a car's distributor is a relatively complex task that should be performed by a qualified mechanic. The process typically involves the following steps:



  • Disconnecting the battery and removing the old distributor

  • Aligning the new distributor with the engine's timing marks

  • Reconnecting the electrical connections and adjusting the ignition timing

  • Performing a test drive to ensure proper operation


It's important to use a high-quality replacement distributor that is compatible with your car's make, model, and engine. Attempting to replace the distributor yourself without the proper knowledge and tools can be dangerous and may result in further damage to your vehicle.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.