Ford Powerstroke Diesel Fuel Injectors: Signs of Failure

Sometimes injectors fail. And when they do, you can be left with a big problem and an expensive repair. But what causes this failure? Are there things you can do to prevent it?

Like a lot of diesel engine failures, failed fuel injectors can point to other, larger issues in your engine. Properly diagnosing the problem is key to a successful repair, as well as preventing you from having your injectors fail again right away.

To help with this, we're taking you through some of the signs of failure of Ford Powerstroke diesel fuel injectors, as well as some of the common causes of failure. You don't have to be held up wondering what's going on with your injectors! 

You can also watch our video for more information on fuel injector failure in Ford Powerstroke diesel engines:



Need replacement fuel injectors? We have ASE Certified Technicians on staff who can help you find the right injectors for your diesel engine!

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Symptoms of Failing Ford Powerstroke Fuel Injectors


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If you're experiencing failure in your diesel engine, it's helpful to know what different symptoms indicate. The following could indicate failing fuel injectors:

  • Excessive Smoke
  • Power Loss
  • Rough Idle
  • Fuel in Oil
  • High Return Fuel
  • No Start

These symptoms can point to different types of fuel injector failure. For example, black smoke or poor performance can be caused by improper installation techniques. These include missing sealing rings, incorrect torque tightening, and incorrect nozzle cleaning. 

These symptoms can indicate that it's time for some new injectors. Need to know more about getting the right injectors? Read our article on choosing the best common rail injectors for your diesel engine. 


What's Causing Your Ford Powerstroke Fuel Injectors to Fail?

So if you've noticed that your injectors could be failing, you're probably wondering what's causing it. Is there something that you can do to prevent it in the future?

There are a few common things that cause issues with Ford Powerstroke diesel engine fuel injectors, as well as some things you can do to help prevent the problems. These include:

  • Diesel Fuel Quality: You might not think much about the fuel you put into your engine, but it can have an effect on the performance of your diesel fuel injectors. Poor quality or contaminated fuel can actually lead to some of the issues you might have with your injectors. Try to fill  up at locations that move a lot of fuel and avoid places where the fuel might have sat for long periods of time (this could lead to contamination).
  • Operating Conditions:The operating conditions of your diesel engine can affect the lifespan of your injectors as well. Some conditions negatively impact your fuel injectors, like short runs, excessive idling, cool operating, and light engine loadings. These can cause deposit problems in your combustion chamber, exhaust spaces, turbocharger, and DPF filter.
  • High Pressure/High Temperature: These can degrade your fuel. They can also leave deposits in pumps and injectors, which lowers the lubricating ability of your fuel.

Looking for more information on fuel injector failure? Check out our article, Diesel Engine Common Rail Fuel Injectors: Potential Failures & Causes.


What Can You Do About Failed Injectors?


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If you find that you need to replace the fuel injectors in your Ford Powerstroke diesel engine, Highway & Heavy Parts can help you restore your fuel system!

We have injector options for your Ford Powerstroke 6.4L Superduty diesel engine.

We've heard people complain about poor quality injectors causing problems in their diesel engines. These injectors are crafted to strict OEM specifications, so you can rest easy knowing you're putting quality injectors into your engine.

If you're looking for long-lasting strength and durability, these parts are equal or better quality as those you would get from the OE. To make it even better, these injectors for your Ford Powerstroke are backed by a 1-year parts warranty. 

We can help get your engine running like it should!


Need quality diesel engine replacement parts and expert advice? Our ASE Certified Technicians are here to help you get what you need! Call us at 844-304-7688, or request a quote online!