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If your Cummins diesel engine just isn't performing like it should, you might have problems with your fuel system.
Well-functioning injectors are critical in keeping your engine running smoothly, and it's possible that injector problems can cause other kinds of engine failures.
When you need to take care of fuel injector problems, we know you want it done right.
That's why we've put together a list of common fuel injector failure symptoms, as well as some common causes.
Don't let fuel injector problems slow down your Cummins ISC or ISB!
Symptoms of Failing Injectors on the Cummins ISC or ISB
What are the Symptoms?
There are a few key symptoms that can indicate fuel injector failure. These can include:
- Excessive Smoke
- Power Loss
- Rough Idle
- Fuel in Oil
- High Return Fuel
- No Start
What Do These Symptoms Mean?
While these symptoms can point to fuel injector problems, they also might indicate a larger issue in your engine.
Poor idling, for example, might be because of corrosion on your injectors. In this case, there might be water contaminating your fuel, causing other problems in your engine.
If you notice these symptoms, it's best to evaluate whether or not new injectors can help solve your issue.
What Causes Cummins Fuel Injectors to Fail?
Even if you've pinpointed the source of your diesel engine failure, it's important to find out if there's a larger cause. This can help prevent the issue from recurring.
Common Causes of Fuel Injector Failure
There are a few common causes of fuel injector failure that are good to watch out for. They can include:
1. Diesel Fuel Quality
Believe it or not, the quality of your fuel has a direct impact on injector performance. Poor quality or contaminated fuel can lead to some serious problems.
Avoid cheap fill up locations if you can. In these places, the fuel might sit for a long time, which leads to contamination.
It's better to fill up at locations that move large amounts of fuel, where it doesn't have a chance to sit for long periods of time.
2. Operating Conditions
Pay attention to your engine's operating conditions, as some will negatively affect your injectors.
These include short runs, excessive idling, light engine loadings, and cool operating. They can actually cause deposit problems in different areas of your engine, like the combustion chamber, exhaust spaces, turbocharger, and DPF filter.
3. High Pressure and High Temperature
High pressure and high temperatures in your system can actually degrade your fuel, leaving deposits in the pumps and injectors. This will then lower the lubricating ability of your fuel.
What To Do About Failed Injectors
If you need new injectors for your Cummins ISC or ISB, Highway & Heavy Parts can help!
We have the injectors you need for your Dodge Cummins ISB 5.9L engine and your Cummins ISC 8.3L engine.
If you've had problems getting quality injectors in the past, have no fear! Our injectors are crafted to strict OEM specifications, so you're getting the highest quality!
These injectors will also give you long-lasting strength and durability, and we back them with an industry-leading warranty.
Give us a call and let our experts help you find the right injectors for your engine!
Fuel Injector & Fuel System Resources
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