ignition Archives - Tomorrows Technician
Five Spark Plug Service And Replacement Tips

Most articles will tell you to use a torque wrench, but they never explain why.

Ignition Diagnostics

This part of the cycle is when the mixture of air and fuel ignites and how the flame front spreads in the cylinder.

Solving The Mystery Of A No-Spark Condition

A no-spark condition could be the result of communication errors or missing data from a dead module.

Ignition Coil Service: Start To Finish (VIDEO)

Diagnostics depends on the coil’s design and what wires are in the connector. Sponsored by Standard Motor Products.

No Go? Battery and Starter Diagnostics

What seems like a problem with one could be an issue with the other.

Performance Spark Advance: Controlling Ignition Timing Delays

Ignition delay occurs during the time that it takes to fully ignite the mixture with a spark plug.

Radio Waves And No-Start Diagnostics

When a vehicle starts today, the energizing of the starter is only one of many events.

Diagnosing Secondary Ignition Problems

Kilovolt demand can vary widely according to air/fuel ratio, running compression and spark timing.

VIDEO: To Gap Or Not To Gap Spark Plugs

Find out what spark plugs need to be gapped and the tools required to get the job done. This video is sponsored by Autolite.

Spark Plug Inspection

A spark plug that has racked up miles should have a brownish or grayish color on the insulator and electrodes, but some gas additives have been known to turn fresh insulators blue, pink or ­purple.

VIDEO: Connection Between Oil Changes And Low-Speed Pre-Ignition

Andrew Markel explains low-speed pre-ignition, how this condition can damage engine components, and how specified oil can help prevent it.

VIDEO: The Misfire Crime Scene

Andrew Markel discusses spark plug ignition wires and what to inspect in the case of a misfire.