What makes diesel fuel injectors go bad?
All fuels contain small amounts of impurities—even the highest-quality diesel fuels. If the fuel contains a large amount of these small, insoluble particles, over time they can abrade the injectors as they pass through during normal engine operation.
How long should diesel fuel injectors last?
around 100,000 miles
The average lifespan of a diesel fuel injector is around 100,000 miles. A typical fuel injector has two basic parts: the nozzle and the injector body. If either of these components gets clogged or damaged, it will compromise the entire performance of the vehicle.
What happens when the injector Cup fails in a PowerStroke?
When the injector cup fails, you will no longer have a seal between the fuel system and the coolant system. Because of the higher pressure of the fuel system, the fuel goes into the coolant. This video addresses how to identify the problem, how to diagnose the problem and how to repair the problem.
How can I find out if my injector Cup is leaking?
Use the pump, pressurize the cooling system, and watch the injector cups very closely in each of the 8 cylinder holes to find which one has the leak. With each hole clean and dry, it should be relatively easy to see the coolant emerge.
Where does the injector Cup make contact with the head?
Take a little bit of seal using a paint brush or swab and put it on the surfaces inside the head where the cup makes contact. The cup makes contact down at the very bottom and around the very top. Those are the only places that make contact. The idea of the brass cup is to keep the injector cool. Brass is used because it transfers heat the best.
Why is the injector Cup made out of brass?
The idea of the brass cup is to keep the injector cool. Brass is used because it transfers heat the best. The tip of the injector is right in the middle of the fire and keeping them cool is the key to having them last.