Replacing The Pencil Ignition Coils May Turn The Light Of

  •   It can be inconvenient to refill your gas tank, particularly when you thought you had enough gas. Misfires can also be annoying. But before you take your car to the auto shop to see what’s wrong, check the ignition coil. Choosing the best ignition coil ensures you get the best performance out of your car. In this review, we highlight three great ignition coils and tell you what to look for when buying one.

      Benefits of Ignition Coils

      No “Check Engine” light. A bad coil can cause this dashboard light to illuminate. Replacing or upgrading the coil may turn the light off.

      More reliable starting. A worn Pencil Ignition Coils can prevent your engine from starting. Upgraded coils enhance starting capabilities and can help ensure your vehicle starts every time as it should without long crank times.

      Best performance. A broken ignition coil can make your engine run rough, cough, and backfire. These symptoms are caused by cylinder misfires and fouled spark plugs from a bad coil, which leads to a loss of power.

      Better gas mileage. When you install new ignition coils, your engine operates better. An engine that operates better operates more efficiently, which gives you more miles to the gallon.

      Types of Ignition Coils


      This coil is used on a conventional breaker point-type ignition system. This system has been in use since the beginning of the 20th century. Here’s a simplified version of how it works: after electrical current flows into the coil from the battery, the distributor cam opens the points. This breaks the electrical circuit in the coil and then-current flows into the distributor cap and on to the spark plugs.


      The design of this type of coil is very much like the conventional coil. The difference is a two- ignition coil design. This design employs a pick-up coil to signal a control module. The control module then activates the ignition coil. Some of these ignition coils are located in the distributor cap. Manufacturers used this type of coil arrangement often in the 1970s as it produced more reliable engine operation and less pollution.


      Car and truck makers started to employ these ignition coils in the 1980s. The design of the distributorless system allows for more energy to come from the coil (or coils). The configuration mounts three or more ignition coils together in a coil pack. A magnetic triggering device in the system determines the position of the crankshaft and the speed of the engine. The device puts out a signal to the ignition control module which sends a signal to the coil. Each coil fires the spark plug in one or two cylinders. This system eliminates the distributor and fault-prone ignition wires.

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