Every time the injectors push fuel and air into the chamber, the spark plugs deliver the electrical current. This keeps the engine running. If you have a weak or poor quality spark plug, then it is possible that it will lead to car stalling.
Furthermore, how long can you drive with bad spark plugs? You can typically get 80,000 miles on them before they need replacing. But if you notice any of these symptoms, its time to get your spark plugs checked out with an engine tune-up. Continuing to drive with worn out or damaged spark plugs can ultimately cause engine damage, so dont put it off.
Also Know, what are the symptoms of a faulty spark plug?
Symptoms of bad spark plugs can include:Reduced gas mileage. Lack of acceleration. Hard starts. Engine misfires. Rough idling.
How do you know when spark plugs need changing?Rattling, pinging or “knock”-like noises. When spark plugs begin to misfire, you may notice unusual noises from the force of the pistons and combustion not working properly. Hard vehicle start. Reduced performance. Poor fuel economy.