Glow Plug Repair & Replacement

Glow plugs are standard fare in diesel engines and are designed to act like small electric heaters. They glow and emit heat in the combustion chamber, warming the engine block and helping the engine to start within a few seconds. Also known as diesel spark plugs, a glow plug takes the place of spark plugs which are only used in petrol engines.

Unlike petrol engines, which use a spark to ignite the fuel mixture, diesel engines rely solely on cylinder pressures to ignite the diesel fuel mixture. If there are problems with your glow plugs, it is important to get them replaced as it will affect how your vehicle starts. On cold wintery mornings, fully functioning glow plugs are essential for a successful ignition.