Symptoms of a bad ignition coil include backfiring, bad fuel economy, and stalling and starting issues. Before the ignition coil is replaced, the engine will need to be properly diagnosed to ensure it is the root of the problem.Know More
The ignition coil is located inside the distributor and is responsible for taking power from the alternator and delivering it to the plugs. When these units fail, the spark plug wires can overload, causing all of them to fail intermediately. In order to ensure the engine remains healthy, a faulty coil should be replaced. The following instructions explain how to do so.
The ignition coil deals with a lot of electricity and battery must be disconnected before replacing it to avoid damage to the engine and shock.
The coil is located inside the distributor. The location of the distributor depends on the make and model of the vehicle.
Disconnect the wire that leads to the generator and to the cap.
Loosen the screws and remove the cap from the distributor. Once off, remove the coil.
Replace the coil with the new unit. Reinstall the cap and distributor wires, and reconnect the battery. Once everything is connected, start the car and check the coil.
Common diagnostic codes for Volvos that cause the Check Engine light to come fully on or blink include emissions-related codes, codes indicating fuel injector malfunction, codes indicating cylinder misfire or knocking, and codes indicating ignition coil or electronic control module malfunction or failure. The most common reason for a check engine light to come on is an unusual reading from the oxygen sensors, and a vehicle will not pass state emissions inspection until the problem is resolved.Full Answer >
The signs of a failing ignition coil include backfiring, starting issues, lowering gas efficiency, engine misfiring, vehicle stalling and worn out spark plugs. The most common symptom of a faulty ignition coil is when the car runs for a while and the engine dies abruptly. This happens when the ignition coil or module becomes too hot.Full Answer >
Correct ignition timing is important to ensure good engine performance and fuel economy. Incorrect timing causes engines to work less efficiently, reducing power and increasing fuel consumption and exhaust gas emissions.Full Answer >
There are several different symptoms that may surface if a car has a bad ignition coil, including backfiring, trouble starting the vehicle, engine misfires, stalling and poor gas mileage. Any one of these problems, or an aggregation of them, indicates a vehicle that has a dysfunctional ignition coil.Full Answer >