What makes diesel injectors fail?

Diesel injectors fail because of two main reasons. The first has to do with the mechanical soundness of the injector structure, and the second has to do with the quality of the fuel running through the injector.

What causes fuel injectors to fail?

Fuel injectors typically fail due to a buildup of contaminants such as carbon. Carbon build-up can cause a clogged or partially clogged injector, preventing the injector from closing all the way. This results in a drip that creates a misfire.

What happens when diesel injectors fail?

Clogged filters and injector deposits will cause an uneven or incomplete fuel burn, resulting in the area of the vehicle around the exhaust to be dirty and the release of white smoke from the exhaust pipe. Increased fuel consumption and poor miles per gallon.

What are the three most common problems with fuel injectors?

How long do injectors last on a diesel?

Diesel fuel injectors generally have a shorter lifespan than their predecessors, meaning they need to be replaced more frequently for optimal performance. The life expectancy of a good quality diesel fuel injector is around 150,000 kilometres.

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Does diesel injector cleaner really work?

Some car owners have reported increased power after using their injector cleaner. They have reported that they recovered up to 40% of the horsepower of their engine back by applying top-of-the-range diesel fuel injector cleaner.

How much does it cost to replace diesel injectors?

On average, you can expect to pay between $350 and $850 to replace your fuel injectors. The range of costs depends on a number of factors. Smaller vehicles with fewer cylinders requiring less expensive parts will come in at the lower end of the spectrum.

What causes Duramax injectors to go bad?

Armed with this empirical evidence, we concluded that fuel contaminants that should be caught by the system's filter were the cause of the Duramax's high-tech injectors' demise.

What are the signs of injector failure?

An abrupt loss of engine power is a somewhat obvious sign of a fuel injector failure. If the fuel injector is clogged, the fuel supply will be irregular too. When the fuel level fluctuates drastically, the high and low rpm's will cause the engine to move in surges rather than slow and gradual movements.

How long should fuel injectors last?

In general, they're expected to last a pretty long time. Both Bosch and Delphi, two major manufacturers of automotive components, say their fuel injectors have a life expectancy of 1 billion cycles. Essentially, that means that the fuel injectors should last as long as the car does.

What can damage diesel injectors?

According to Afton Chemical's North American Marketing Manager, David Cleaver, there are three major causes of injector failure associated with the properties of the fuel itself: excess wear, abrasion, and deposits. One mode of injector failure is excess wear.

Can you replace one diesel injector?

Replacing one does not save effort.

Any diesel vehicle professional will not be inconvenienced by having to install a set of injectors. If you are installing them at home, it may feel like more effort at first. But the more you do it, you will prefer to quickly install new injectors together.

How do you protect diesel injectors?

Another option is to keep the injectors clean by pouring additives in with the fuel. If you drive your car regularly, you can pour an additive in with the fuel every 2,000 to 5,000 miles. This will discourage the accumulation of heavy buildup.

Can dirty diesel damage injectors?

Contaminated fuel will still wear down injectors and the fuel additive solution may only act as a bandage for a more serious issue.

How do you clean diesel injectors?

The best way to clean fuel injectors on a regular basis is to use a diesel fuel cleaner additive. This can be added to the fuel tank periodically to cycle through your engine. If done regularly, maybe once or twice a month, it can keep gunk and debris from building up in your fuel injection system.

Will a bad injector throw a code?

Diagnosing a Clogged Fuel Injector

One of the obvious symptoms of a clogged fuel injector is the lighting up of the "Check Engine" light in your dashboard. The fault codes usually associated with a clogged fuel injector can range from misfire codes to lean codes.

Can you clean fuel injectors?

With your fuel injectors safely removed, you can now clean them individually. Using a soft-bristled brush, you can apply your carburetor cleaner to the outside. Use a fuel injector jumper in order to open up the fuel injector, then spray your cleaner through each side of the fuel injector.

How long do Duramax injectors last?

For most buyers the first set of injectors will likely have already been taken care of since the failure usually occurs between 100,000 and 150,000 miles.

How much does it cost to replace Duramax injectors?

The total cost for Duramax injector replacement is $2,000 and $6,000. The labor costs associated with this job can range from $800-$1,500. Related repairs could be needed if you have driven for a long time with dirty fuel injectors.

What year Duramax has bad injectors?

It's common diesel knowledge that one of the weak points of the 2001-2004 Duramax diesel trucks is that the injectors will go bad. It's something all of us LB7 drivers have had to deal with, the dreaded injector job.

Can diesel injectors be refurbished?

When it becomes necessary to replace the diesel injectors there are two options of you can take. You can get refurbished injectors or get remanufactured ones instead. Each has potential pros and cons that you may need to consider when choosing which is the best option for you.

Do you have to replace all fuel injectors at once?

Some fuel injectors are rated to last one billion cycles or approximately the lifetime of the vehicle. But when you factor in the adverse conditions experienced in real-world driving coupled with a lack of proper maintenance, most fuel injectors might need to be replaced every 50,000 to 100,000 miles.