Mach V Motorsports
Show Order
cart
Home
Performance Guide
Intake
Turbochargers
Boost Control
Exhaust
Drivetrain
Engine
Fuel System
Ignition System
Suspension
Wheels
Brakes
Interior
Exterior
OEM/Maintenance
Accessories
Clearance Center
Evo Catalog
WRX Catalog
Home > Performance Guide > Tip of the Week > Tip 4: Spark Plugs > Diagnosing Spark Plug Health

Diagnosing Spark Plug Health



Check your spark plugs periodicially to see how they are doing. Here are some symptoms you may see.



Happy Spark Plug
Fouled Spark Plug - click to enlarge
Happy Spark Plug

Fouled Spark Plug

Melted Spark Plug
Spark Plug Overheating
Melted Spark Plug

Spark Plug Overheating

Broken Spark Plug
Leaded Gasoline and Spark Plugs
Broken Spark Plug

Leaded Gasoline and Spark Plugs

Normal Worn-Out Plug
Normal Worn-Out Plug


Home About Mach V Show Order