Spark Plug Archives - Tomorrows Technician
What Can You Tell About An Engine From A Spark Plug?

Spark plug condition can reveal valuable clues about short and long-term engine issues if you know what to look for.

Solving A No-Spark Condition

Communication errors or missing data from a dead module could be the cause.

VIDEO: How Often Do You Need To Change Spark Plugs?

Different manufacturers use different kinds of spark plugs. This video is sponsored by Autolite.

VIDEO: Gapping Spark Plugs

Does the gap need to be set before replacement? This video is sponsored by Autolite.

VIDEO: 5 Signs It’s Time To Replace Your Spark Plugs

Do you know when it’s time? This video is sponsored by Autolite.

VIDEO: What If Spark Plugs Are Not Replaced?

Worn spark plugs can cause more damage to an engine than you might think. This video is sponsored by Autolite.

Spark Plug Crush Gaskets/Washers G1 Prep [VIDEO]

The style and diameter of the spark plug will determine the installation procedure. This video is sponsored by Autolite.

VIDEO: Extended Crank Conditions During Starting

The issue might not be the starter or battery, it might be the fuel pump. This video is sponsored by Carter.

VIDEO: What Keeps Spark Plugs In The Head?

Here’s everything you need to know when tightening a spark plug. This video is sponsored by Autolite.

VIDEO: Spark Plug Electrode Wear And The Shape Of The Tip

We discuss how wear due to plasma erosion can change firing voltages. This video is sponsored by Autolite.

VIDEO: Checking For Spark Inside And Outside The Engine

In this video we discuss what it takes to fire a spark plug under pressure. This video is sponsored by Autolite.

VIDEO: Real Fuel Pump Diagnostics For Pros

The reality is that for technicians working on a car this almost never works. This video is sponsored by Carter.