What causes a spark plug to go bad?
What causes a spark plug to go bad? Inspect the spark plugs for damage to the insulator tip, boot and upper and lower insulators. Next, check the spark plugs for signs of fouling. A fouled spark plug occurs when the plug isn’t burning fuel normally, leaving damage to the plug which can cause the engine not to start. What are the symptoms of a bad distributor rotor and cap? Symptoms of a Bad or Failing Distributor Rotor and Cap Common signs include engine misfires, car not starting, the Check Engine Light coming on, and excessive or unusual engine noises. by...