How to Test an Engine Coil?

Answer Automotive ignition coils function as miniature transformers that increase 12 volts to several thousand for the purpose of igniting the spark plugs. Without an ignition coil, the spark inside the c... Read More »

Top Q&A For: How to Test an Engine Coil

How to Test a Two-Stroke Engine's Ignition Module and Coil?

The ignition coil or module for a two-stroke engine regulates the ignition power, and converts it to charging electricity for the battery system. When the module and coil begin to fail, it's typica... Read More »

What does an engine coil do?

Engine coils work as transformers within the ignition system. Engine coils--consisting of two wire coils wrapped around an iron core--transfer voltage between circuits. Engine coils promote electro... Read More »

Engine Coil Failure?

For an ignition system to activate an engine's spark plugs, a great deal of voltage is required. Engine ignition coils act as a transformer to provide the high voltage needed by a vehicle's ignitio... Read More »

What is a coil pack in a car engine?

A coil pack contains all of the car's ignition coils, which work with the spark plugs to ignite the gasoline and power the car. Some cars have a coil pack, while others instead use individual ignit... Read More »