Locate the leaking seals and take out the old spark tube gaskets.If the valve cover is stuck, get a screwdriver and pry under.So, you have to remove the valve cover to change them. The spark plug tubes are built into the valve cover. Put aside or remove any wiring harness that is in the way of removing the valve cover.Remove the clamps off the hoses that go to the valve cover and pull them off.Take out the spark plug wires and put them aside.It just means that your spark plug tubes are leaking. If you are changing the spark plugs on your engine, only to discover that your spark plugs are covered with oil, don’t freak out, it doesn’t mean that your engine is going to blow up. It’s important to note that continuing to drive with faulty spark plugs can lead to poor performance, decreased fuel efficiency, and potential engine damage. The mileage you can drive with a bad spark plug can vary depending on the specific condition of the plug and the engine. If there are multiple faulty spark plugs, you shouldn’t drive at all. You can still drive for about 50 – 100 miles if only one spark plug is bad. How Long Can You Drive With a Bad Spark Plug? There is a great chance that you will destroy the spark plug wiring while trying to take out the blown spark plug. This is because when a spark plug blows, extra heat is generated and the spark plug can get welded. When a spark plug is blown, it can be hard for you to remove it at home. The safest thing that you can do is disconnect the spark plug wires and thus disconnect that electrical current to the spark plugs and drive your vehicle to the mechanic shop. Now, the question is, can you drive a car with a blown spark plug? If you carefully read my article so far, you will know that you shouldn’t drive a car with a bad spark plug. When a spark plug is blown and your engine loses a cylinder, you will experience a lack of power, poor engine performance, bad gas mileage, rough idle, different engine noises, and the smell of gasoline from the exhaust. What happens when a spark plug is blown, no sparks would be created to ignite the air and fuel mixture in that particular cylinder.īasically, your engine now has to overwork the remaining 7 cylinders in order to compensate for the lost cylinder. A car with 8 cylinders (V8 engine) will have 8 spark plugs, one for each cylinder. Several factors can cause spark plugs to go bad, including normal wear and tear, carbon buildup, oil or fuel contamination, improper gap settings, overheating, and engine problems.ĭriving with a blown spark plug is not recommended as it can cause extreme damage to the engine, including misfires, reduced gas mileage, rough idling, lack of acceleration, and potential fuel leakage.Įach cylinder has a spark plug that ignites the air and fuel mixture into the combustion chamber.Signs of bad spark plugs include rough idle, difficulty starting the engine, engine misfires, surging, reduced fuel efficiency, lack of acceleration, and rough idling.Driving with a blown spark plug is not recommended as it can cause severe damage to the engine.Q: Is it safe to drive with bad spark plugs?.Q: When should I replace the spark plug?.Q: Can you still drive your car if one spark plug is damaged?.Q: How long can you drive with a blown spark plug?.Q: Can a faulty spark plug cause other issues?.Q: What are the symptoms of a bad spark plug?.Q: How much does it cost to fix a blown spark plug?.
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