How To Change Your Spark Plugs
Worn spark plugs can be the source of a number of vehicle issues, from not starting to engine mis-firing and slugishness, compromising your vehicle's fuel economy. With the right products, tools and process - it's a job you can do yourself. In this video we'll show you how to gap spark plugs correctly, how to read a spark plug and know when to replace.
If you're engine runs rich, misfires, is sluggish or runs at high temperatures you should take a look at your spark plugs.
How to read your spark plugs to know what's happening in your engine:
- Covered in oil - Check your valve guides and piston rings
- Light brown cust - Caused from oil leaking in to the combustion chamber or the use of fuel additives
- White ash on the insulator or melted electrode - This is caused from overheating or pre-ignition and should look at the timing system or picking a plug suited to correct heat range
- Damaged or craked insultor - Indicates detonation and could mean you're using the wrong octane fuel or incorrect timing