A problem with the ignition coil is one of the many things that can cause your car has trouble starting. It helps to know what makes a start winding, which signals malfunction, how to test and how to replace it if necessary are.

What makes the start winding

Your car has spark plugs to ignite the fuel in the cylinders and make your car move forward. These simple spark plugs are on a complex system that turns on at the right time with the right intensity. The ignition coil takes power from the battery and increase the voltage to a level high enough to create a spark at the spark plugs.

How a start winding

Starter coils are made ​​of two parts. The first is called the primary coil and the second coil is called the secondary. The primary winding is less than the second. The current from the battery to the primary, creating a magnetic field. The magnetic field drifts current to the secondary. Because the school has more windings, the voltage on this is much higher than the primary.

Symptoms of a problem with the ignition coil

A coil boot is completely dead the engine will not start or stop the engine if the car is in motion at the time of the failure. This is because the current does not reach the spark plugs. An ignition coil is failing, will continue to provide current to the spark plugs, but will not be sufficient and the car will walk slowly. If the coil current providing the car is not consistent abruptly will walk.

Try the coil

Disconnect the battery and remove the coil before testing. The service manual for your model will give strength specifications for your coil. To test the resistance of the primary coil, touch the needles of a multimeter with smaller poles on the outside of the coil. If the reading is equal to the exact specifications of your hand, the primary is working properly. To check the secondary, hold a needle attached to pole 12 volt and the other hits the big pole in the middle. Compare the results with the exact specifications of your manual.

Replacing a coil

When you’re replacing the coil in the car, make sure the battery is disconnected. Screwing the new roll in place of the damaged. Replace the ignition cables from the primary. Put a little grease on the cable before connecting it to the coil. Now you’re ready to reconnect the battery and start the car.