The diesel fuel system supplies, transfers, cleans and delivers cylinders to facilitate combustion, thereby producing power.
The key causes of injector failures are:
- Poor Fuel Filtration
- Fuel Contamination
- Incorrect Installation
Poor Fuel Filtration
A common problem with diesel injectors today is ball seat erosion. The heart of the common rail injector is the magnetic valve through which fuel passes at extremely high pressure. The passage opening is sealed using a small ball that is only 1mm in size. A proper seal is critical for proper injector performance. Abrasive contaminants can erode and damage the ball seat causing the ball not to seal properly leading to improper injection.
To ensure exact performance within the designed service life of the injectors, use only OE filters or filters having the same micron rating and follow the recommended OE filter change interval. Using anything less can cost you more in the long run.
Repair statistics show that the majority of diesel engine problems stem from contaminated fuel. One of the most common problems with diesel injectors is corrosion, which is caused by water in the fuel.
How does the water get into the fuel? A vented cap allows air to enter the storage tank to equalize pressure as the fuel flows out. The outside air contains moisture and this moisture condenses into water inside the tank.
Always purchase fuel from a reputable service provider and use a proper fuel/water separator.
Missing sealing rings, incorrect tightening torque, incorrect cleaning of nozzle can cause poor performance, misfiring, black smoke and check engine light to come on.
Always follow the engine manufacturer’s maintenance procedures.
Come in and get your Common Rail Injectors tested today by Arizona’s only Bosch certified testing facility.