How do you know if you need new spark plugs?
What Colour should a spark plug burn?
In general, a light tan/gray color tells you that the spark plug is operating at optimum temperature and that the engine is in good condition.
What does a ping sound like?
Do you hear that rattling sound? Pinging is best described as “Like a pile of marbles dropping onto metal.” Another describes pinging as “like marbles in a tin can.”
Related Question What does it sound like when you need new spark plugs?
What is the clicking sound when I start my car?
It might be a battery or alternator problem.
A rapid clicking noise when trying to start your car could mean there's something wrong within the electrical system. Perhaps your battery's dead, or your alternator, which charges the battery, isn't working correctly. You may need to replace your alternator or battery.
What does a bad solenoid sound like?
Our Expert Agrees: If your starter solenoid is bad, you may hear a clicking sound when you turn the key, or your vehicle may not have any power at all. Check the battery. Low power could result in the starter clicking but failing to engage.
What does a freewheeling starter sound like?
Freewheeling occurs when you crank the engine and simply hear a whining noise without the engine cranking. When this occurs, it means the starter is not engaging with the flywheel. This is a worrying situation which could result in having to replace the whole component.
How do I know if my spark plugs are rich or lean?
Good running conditions: If everything is good, the spark plug should have a tan/light brown color. Rich running conditions: If your engine is running too rich, the spark plug will be black and sooty. Lean running conditions: If your engine is running too lean, the spark plug will be white.
What do fouled spark plugs look like?
Oil fouling of a spark plug typically results in a shiny, black appearance. If enough oil is in the combustion chamber, the deposits can build up on the tip, porcelain or shell. If you can't determine if it is carbon or oil fouling, smell the plug; it will smell like engine oil.