Lastly, if the spark plug went bad because of improper gapping or incorrect heat range, make sure to replace it with the right spark plug with the correct gapping. Dirty carburetors, injectors, or air filters should be cleaned if they are reasons for the spark plug foul. Similarly, for coolant leaks and the cracked distributor case, you should check the cause along with the spark plug change. Poor acceleration or hesitation may be a sign that your spark plug is worn or dirty or the incorrect type of plug is being used. If it is because of the engine oil leak, it’s best to check the condition of the piston rings as well. If it is because of too rich of a fuel mixture, carburetor tuning along with spark plug replacement is the solution. We need to understand the reason why the spark plug was fouled in the first place. Replacing the spark plug is the short-term fix. Of course, the solution for a fouled spark lug is to replace it with a new spark plug. One of the easiest ways to tell you have a bad spark plug is if you notice engine misfiring. Other symptoms of a fouled spark plug include engine misfiring, rattling noise from the engine, lack of power, and poor engine performance.įor a more detailed view, here is our post on the symptoms of bad spark plugs. There are several possible symptoms of an ignition coil problem. Signs Of A Bad Spark Plug Engine Misfiring. Couple that with poor acceleration and low mileage, it’s not tough to say there is something fishy with the spark plugs. You can start noticing rough idling and hard-to-start problems in the engine. The best course of action is to let your mechanic diagnose the issue for you. Symptoms of a bad spark plugīad spark plug symptoms are plenty. Spark plugs are part of your vehicle’s ignition system, so it may be difficult to differentiate one bad ignition part symptom from the other. This improper plug gapping will again lead to the poor working of the spark plug over time. The spark travels longer and has large contact, but is an inefficient ignition process.īoth the small gap and the big gap are undesirable. ![]() On the other hand, if the spark plug gap is too big, the electrode draws too much current to produce the electric spark. There will be incomplete combustion of the fuel due to such inadequate ignition. If the spark plug gap is too small, the spark will not have enough contact with the fuel mixture for ignition. ![]() The gap needs to be optimum with neither too big a gap nor too small a gap. As a result, the company produces over 1,000 different types of spark plugs for almost every type of engine This includes automotive engines, as well as motorcycles, marine, power sport and many other applications.The spark plug gap is the gap between the center electrode and the ground electrode. In order to meet growing expectations, Niterra regularly invests in research, technology and development. Because of its clear commitment to delivering the highest quality and continuously raising the bar, Niterras are the first choice for an array of vehicle manufacturers. Dark coloring, such as heavy black wet or dry deposits, can indicate an overly rich condition, too cold a heat range spark plug, a possible vacuum leak, low. Niterra has in over 60 years established itself as a heavily relied upon original equipment manufacturer (OEM). NGK spark plugs Technologies Almost every petrol engine on the market can use NGK spark plugsįrom passenger cars and bikes to Formula 1 and motorcycle racing.
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