Fuel injection systems and problems

A fuel injection system is designed to deliver fuel into the cylinders of a diesel engine in a precise and controlled manner. This is accomplished using fuel injectors which are made to help the engine run smooth and improve fuel efficiency. There are two main components in a typical fuel injector, the nozzle and the injector body. If one or both of these parts gets clogged or damaged, it will compromise the performance of the vehicle.

An optimum fuel injection system will provide exactly the right amount of fuel under all engine operating conditions. This means a precise combination of air to fuel ratio is required to ensure good engine operation, even at low engine temperatures, and good adaptation to a wide range of altitudes and ambient temperatures. In addition, good fuel efficiency and low exhaust emissions are also two of the main objectives for a diesel engine to be in good running order.

Unfortunately, sometimes things go wrong and components begin to fail. We at Diesel Solutions can help solve your diesel fuel related engine problems using our expert knowledge and testing equipment. However, before contacting us, you might want to know exactly how we can help and the type of services we can provide.

Below are a number of frequently asked questions and answers that may help you decide whether to contact us if your vehicle exhibits any problems.

Diesel injector

Frequently asked questions

Dirty fuel injectors may cause your vehicle's engine to misfire. The idling speed gets rough and you will get reduced mileage from your vehicle. Worse case scenario is that the vehicle will not start.

On average a diesel fuel injector will last up to around 100,000 miles.

A fuel injector can leak if the injector body or nozzle cracks. Another common cause is failure of the O-ring which can eventually become hard and brittle. When an O-ring breaks then fuel can leak out over the engine and therefore needs to be replaced.

If one of the fuel injectors fails it can cause the engine idle to become rough. A faulty fuel injector will inject too much or too little fuel into the cylinder of the engine and therefore cause a rough engine idle.

If left too long, a faulty fuel injector can lead to serious engine damage, and therefore expensive major repair. At the very least, driving your vehicle with a clogged or faulty fuel injector will result in poor acceleration which could seriously affect your driving in certain situations. You are also likely to notice an increase in tailpipe smoke and emissions, which is not good for the environment.

Replacing only one fuel injector is likely to be a poor decision. It is usually best to replace multiple injectors at the same time. The reason for this is that when one fails it is usually an indication that the other fuel injectors are nearing the end of their lifespan as well. It will be more economical to have them all replaced at the same time than having to replace them one at a time whenever there's another problem. It will also give you peace of mind knowing that all the fuel injectors will maintain their performance and avoid the inconvenience of having to keep returning your vehicle for further fuel injector problems that may occur.

Have a question that is not answered here?

Then give us a call and we will be happy to advise you on whether we can help with your fuel related problems.

Our services include Vehicle diagnostics - Pump and injector testing, repairs and re-conditioning - Injector removal on all modern systems.

Tel: 0191 518 4668