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Duramax 6.6l Diesel Engine: How Many Fuel Injectors Does It Have?

Duramax 6.6l Diesel Engine: How Many Fuel Injectors Does It Have?

As with all mechanical parts, wear and tear is inevitable, and every Duramax diesel engine will eventually need a 6.6l Duramax fuel injector repair service in San Diego. But what does this repair entail? Are there ways to prevent it? How many fuel injectors are there in a 6.6l Duramax, anyway?

We've previously discussed the Duramax V8 development history, listed the amounts of horsepower and torque in Duramax 6.6l models, and looked at some of the inner workings of the Duramax turbo diesel engine.

Now we will write about the fuel injectors in a Duramax 6.6l engine. The following will help you determine whether you have a problem with your diesel fuel injectors, why these issues happen, and how to best deal with them.

What are the symptoms of a bad diesel fuel injector?

As with signs that indicate a turbocharger issue, there are a number of behaviors you should be on the lookout for that will help you diagnose a diesel fuel injector problem. Of course, correct maintenance can greatly lessen the possibility of these issues occurring.

Symptoms of a bad, clogged, leaking, dirty or faulty diesel fuel injectors include:

  • Starting issues.
  • Poor idling performance.
  • Rough engine performance.
  • Inability of the engine to reach full RPM.
  • Failed emissions.
  • Pollution
  • Higher fuel consumption.
  • Smoke coming out of the tail pipe.
  • Engine detonation or knock (this can cause catastrophic engine failure).
  • Buckling and surging under different throttle loads.
  • Overall unsatisfactory performance.

Symptoms of leaking diesel fuel injectors include:

  • Weak emissions.
  • Increased fuel consumption.
  • Fuel odors around and inside the vehicle.
  • Hard starting.
  • Poor idling performance.
  • Hydro lock (can lead to catastrophic engine failure).
  • Oil thinning (can result in catastrophic engine failure).

A word of warning:

Take special care if your fuel injectors are leaking externally. Not only does this indicate cracked injector body and means that the injectors need to be replaced, it's also a considerable fire hazard.

For your own safety and the safety of others, avoid using the vehicle until this problem has been fixed.

What makes diesel fuel injectors go bad?

Diesel injectors typically fail either due to the low quality of the fuel running through them, or because of the loss of mechanical soundness of the injector structure itself. There are many things that can cause breakdown, and we'll look at two of the main ones here.

Biggest reasons for fuel injector burnout include:

  • Injector solenoid failure happens when the electromagnet mechanism that moves the pintle breaks down or wears down over time.
  • Component damage comes in many forms, but often includes internal sealant damage, which in turn affects the flow of fuel through the injector.

Of course, making sure that you're using modern common-rail diesel fuel injectors, such as those endorsed by reputable organizations like the Diesel Technology Forum, will improve their longevity and save money in the long run.

What's the top 6.6l Duramax fuel injector repair service in San Diego?

Although the Duramax 6.6l is widely considered to be the most dependable turbo diesel engine available today, every machine with moving parts will eventually suffer a breakdown of some sort. When this occurs, visiting a reputable diesel engine repair and maintenance company is the best course of action.

PCE is California's finest engine repair, replacement, and maintenance service. With more than 40 years of experience and numerous contracts with the US Navy, we are uniquely qualified to solve all your diesel engine-related problems.

Visit us at our premises near the Centre City in San Diego, or give us a call if you have any further questions. Our polite and knowledgeable technicians will be happy to assist you.

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