086 000 3227

Diesel Glow Plugs

Diesel Glow Plugs

Diesel Glow Plugs Diagnosis:

 

It is possible to start a warm diesel engine without using a glow plug, or in warm climates, thanks to the relatively high temperature of the intake air and the relatively low ignition temperature of diesel. However, this isn’t enough to ensure proper ignition of the injected fuel in all temperatures, which results in increased exhaust emissions. A diesel glow plug solves this issue. It is an electrical heating device located in each cylinder of the diesel engine that ensures reliable starts in all weather conditions.

How do Diesel Glow Plugs work?

Unlike a spark plug that is working continuously while you drive, glow plugs are only needed during the ignition process. The glow plugs work by electrifying the heating element so it heats up and emits visible light (hence the name). Intake air is compressed before the fuel injector spray directs fuel onto the hot tip of the glow plug during the injection of the fuel. The injected fuel mixes with the compressed air to evaporate and start combustion almost simultaneously, even when the engine is cold.

Do the glow plugs stay on whilst the engine is running?

The post-heating time was introduced in more recent vehicles. This was necessary due to increasingly strict exhaust gas standards and the optimisation of combustion processes required as a result. The glow plugs remain switched on during the post-heating time even if the engine is running. The length of the post-heating time is determined by the type of engine and the engine temperature. Only special “post-heating” glow plugs are used for this function.

How long do glow plugs last?

Diesel Glow plugs can last up to 160 000 km. They are extremely long-lasting. But at times a glow plug can fail and therefore will need to be replaced. If you find the vehicle difficult to start. Check the plugs.

Black Smoke

Black smoke is an imbalance in the fuel mixture. Too much fuel and not enough air. There is too much fuel added to the mix and not enough oxygen to burn the fuel correctly. The timing also may be advanced as opposed to retarded. Get a timing light attach it and rotate your distributor until the timing is correct.

White Smoke

There is not enough heat to burn the fuel. The unburnt fuel travels through the exhaust and comes out the back tailpipe as white smoke. A damaged or faulty glow plug module can cause white smoke on engine startup. If the engine has warmed up and there is still white smoke then there may be one or more bad injectors, retarded timing, or a worn injector pump.

The Importance of Regular Service and Repairs

Taking care of your car is essential to keep it running smoothly and safely on the road. Regular service and repairs are the key to ensuring that your car is in top condition and ready to face any road challenges. Whether you’re a seasoned car owner or just starting out, make sure to schedule regular service and address any issues promptly to ensure the longevity and safety of your vehicle.

Regular service is the key to keeping your car in good condition. During a service, a mechanic will check the various components of your car, such as the engine, brakes, suspension, and transmission, to make sure everything is functioning properly. They will also change the oil and oil filter, check the battery and tire pressure, and top up any fluids that may be low.

Service intervals vary depending on the make and model of your car, as well as how much you drive it, but it’s generally recommended to have a service every 12,000 to 15,000 miles or once a year, whichever comes first. Regular service will not only keep your car running smoothly, but it will also help to identify any potential problems early on, allowing them to be fixed before they become more significant and expensive to repair.

No matter how well you take care of your car, there will come a time when it needs repairs. It could be a simple fix, such as changing a blown bulb or a more complicated issue, such as a faulty transmission. Regardless of the issue, prompt and proper repairs are crucial to ensure the safety of you and your passengers, as well as the longevity of your car.

 

It’s important to have a trusted mechanic who can diagnose and fix the problem quickly and efficiently. If you’re unsure about the problem, you can take your car to a mechanic for a diagnostic check. They will run tests on the various systems to determine the issue and then provide you with a quote for the repairs.

DIY repairs can save you money, but it’s essential to have the right tools and knowledge to do the job correctly. If you’re not confident in your ability to perform the repair, it’s always best to seek the help of a professional.

find a workshop near you

Explore our services

Comprehensive minor and major car services.

Repairs for all car makes and models with genuine parts.

Service a fleet of cars or trucks with a fast turnaround time.

Professional servicing tailored to trucks and heavy-duty vehicles.

Upgrade your car with premium car accessories.

Explore our services

Comprehensive minor and major car services.

Repairs for all car makes and models with genuine parts.

Service a fleet of cars or trucks with a fast turnaround time.

Upgrade your car with premium car accessories.

Professional servicing tailored to trucks and heavy-duty vehicles.

Find a workshop near you