Ignition coils are subject to wear and tear under normal driving conditions, and will fail eventually, which happens mostly around 100,000 miles mark. What causes ignition coils to go bad in Dodge Dakota? If your vehicle is equipped with coil pack in which a group of ignition coils are physically connected together, you will have to replace the whole pack. Typically, ignition coils last around 100,000 miles or more under normal conditions. This is because when one coil fails, another isn’t too far behind, especially if the vehicle has racked up over 100,000 miles. However, as a general rule, it is recommended to replace all the ignition coils at once as a preventative measure. Yes, you can replace just the defective ignition coil in your Dakota. Note: This method only works on vehicles with coil-on-plug (COP) type ignition coils, and will not work on coil packs. If it shows error code P0302 which indicates a misfire on cylinder number 2 and there are no misfires on cylinder number 3, it means that the ignition coil is defective and should be replaced.Start your Dakota and read the error codes with a scan tool.Unplug the electrical connectors before swapping and then reconnect after the swap. Remove the ignition coil from cylinder 3 and swap it with any other cylinder, for example cylinder 2.Ĭaution: Do not swap the spark plug wires/connectors, only the ignition coils.Turn off your Dakota and let the engine cool down to prevent any burn injury.Read the error code, for example if it says P0303, it means the cylinder number 3 is experiencing misfires.Plug a scan tool to the OBD2 port in your Dakota.The fastest and easiest way to check for a bad ignition coil in Dakota that has check engine light on for misfire is to swap the ignition coil on the misfiring cylinder with another coil. How to check for a bad ignition coil in Dodge Dakota? Your Dakota may not start if most of the ignition coils have failed, as the spark plugs will not produce proper sparks due to insufficient ignition energy. The ignition system in your Dakota will have to work a lot harder to be able to ignite the air/fuel mixture in the combustion chambers. When the ignition coils go bad, it is going to take longer for the engine to turn over and start. If your vehicle is getting significantly lower gas mileage than usual, its time to inspect the condition of the ignition coils and spark plugs. Poor fuel economyĮxcessive fuel consumption is a common sign of bad ignition coils or spark plugs in Dakota. The engine will not run smooth when idling, and you may also feel vibrations in the cabin. Rough idleĪnother indication of bad ignition coils in Dodge Dakota is rough idle. When you press the gas pedal in your Dakota, the vehicle may hesitate to accelerate and it will take longer to reach your desired speed. If the ignition coils are not working properly, the engine will lose power. In case of doubt, check the condition of the ignition coils and replace them if found defective. However, it can happen that there are no error codes. If you see any error code from P0300 to P0312, it indicates that there are misfires in the engine. To perform further diagnostics, you will need to connect an OBD2 scanner to your vehicle. When an ignition coil start to fail or has failed in your Dakota, it will cause the engine to misfire and the check engine light may illuminate in the instrument cluster. Symptoms Check engine light illuminates due to misfires
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