How to Test Glow Plugs?

Answer Glow plugs are used in diesel engines instead of spark plugs. Diesel engines rely on compression alone to ignite their fuel, so a spark plug is not necessary. A glow plug is necessary to initially ... Read More »

Top Q&A For: How to Test Glow Plugs

How to Test the Glow Plugs on an F-250?

Most people are familiar with spark plugs, which create a small arc spark or charge when electricity is applied, thus driving gasoline combustion in an engine. Diesel engines, however, use glow plu... Read More »

How to Test Diesel Glow Plugs?

Diesel glow plugs heat up the diesel fuel in an internal combustion engine so that the engine will run properly. When the glow plugs are not functioning properly, you can replace them, but you shou... Read More »

How to Test the Glow Plugs on a Melroe 743?

The Melroe 743 (usually called a bobcat 743) is a front loading tractor which runs off diesel fuel. Because it runs off diesel, it also requires glow plugs. Sometimes these glow plugs go bad and st... Read More »

How to Test the Glow Plugs on a Powerstroke?

The glow plugs in your Ford Diesel Powerstroke engine have the important job of heating the diesel fuel and air inside the cylinders. Once this air and fuel mixture gets hot enough, it explodes, ca... Read More »