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There are thousands of electrical connections within a car, but some are more crucial than others to its operation. The ignition coil requires consistent low voltage delivery to provide amplified power. The coil connector is a device that links this system together.



What is a Coil Connector?

For a vehicle to move, the engine must produce power and the transmission must deliver that power to the road wheels. Despite that you’d have to have some way of starting and stopping the vehicle, this would be enough to propel it in certain conditions and at a set speed. However, the driver must adjust the speed according to elevation or obstacles and as such needs a gearbox to achieve this variation.

The clutch mechanism enables instructions given by the driver to be converted into a variety of different speeds and crucial to the clutch mechanism is the flywheel, which is a heavy-duty disc that is mounted on the back of the engine and spins vigorously when the motor is running. In certain circumstances, it will interact with the gearbox and the rest of the clutch mechanism, to transfer power.

How Does a Coil Connector Work?

For a coil to work effectively, signals need to be sent from the car’s central computer to these devices, to make them generate the right amount of electrical power to activate the spark plugs.

Within each coil are a very thin series of copper wires that are intertwined with each other to amplify the low voltage signal that is provided to the coil through a magnetic field. This enables the coil to produce tens of thousands of volts, which will be output via a high-density cable towards the plugs. The coil connector receives the low voltage cables from the ECM into one half of its component and the cable that connects directly to the coil into its other half. When these two parts are mated together securely, the connection is made and everything works properly.

How is a Coil Connector Made?

A coil connector is an especially molded plastic component with electrical connections, which enable the individual cables to be connected by pins. The method of connection will vary according to the vehicle and the type of connector used.

How Does a Coil Connector Fail?

  • “Snap on” attachments break
  • Dirt or condensation intrusion
  • Overheating

What Are the Symptoms of Failure?

  • No power to the coil and the engine fails to fire
  • Engine will misfire, intermittently

What Are the Consequences of Failure?

  • Poor overall performance
  • Failure to start

The coil connectors are typically located in very hostile environments, where heat and vibration can be a major challenge. Their condition should be monitored regularly and care should be taken to ensure that the connectors are properly “snapped” into position during installation.

If you have questions or concerns about Coil Connectors or any of your vehicle’s components, come into your local Pep Boyswhere we can answer any question, help you find any part, or perform any vehicle service you might need.