Tag: injectors

Brady Cabe

December 15th, 2016

InjectorsDirect.com is building a new facility!

"The InjectorsDirect.com team breaking ground on the new facility

First off, we want to thank our customers for helping make this possible. Your patronage has helped contribute to the incredible growth of our business over the past 7 years.

Thank you.

Our new building was designed from the ground up with efficiency in mind, and will be tailor-made to meet our needs and the growing needs of our customers. We will be able to increase our production capacity 300%, allowing us to add 6-10 more local jobs. The facility will feature specialized rooms designed specifically for cleaning, servicing and testing injectors, as well as vertical lift modules for efficient storage and organization of our inventory.

For our customers, this new facility means we will be able to continue to offer the same unmatched quality and speed of service, even as the company expands.

AdditiA look at the design for the new InjectorsDirect.com buildingonal elements include modern office spaces, a full-featured employee lounge, and cohesive work stations all under one roof. The 6,400-square foot facility will be powered with solar energy and feature drought resistant landscaping.

The project was designed by Steve Pults of Pults and Associates with general contractor Stalwork, Inc. completing construction of the project — both of which are based locally in San Luis Obispo, CA. With ground-breaking and dirt work well underway, the project is scheduled for completion in fall 2017.

Be sure to follow us on Facebook, Instagram and Twitter to keep up with the latest updates on the new building!

duramax balance ratesThe Duramax has proven to be a reliable engine since its introduction back in 2001.

Generally, most owners and service techs are well aware of the importance of keeping a clean fuel system by running clean, high quality fuel, lubricity additives, and routine fuel filter changes along with all other required maintenance.

When problems do arise from the fuel system, the first method of diagnosis is often a balance rate test. There are a lot of questions we get about balance rates and we would like to help clarify what they do and don’t do in terms of diagnosing the fuel system, specifically the fuel injectors.

Balance rates are measurements that the engine control module uses to keep the injectors firing smoothly, making a more efficient and quiet running engine. Injector balance rates are only measured while the truck is in neutral, or in drive with the foot on the brake.

Unfortunately, balance rates are not measured when the engine is being fueled beyond idle pressures. No balance rate measurements are taken from the ECM under any other conditions therefore leaving a large spectrum of potential data off the table for analysis. In addition, the balance rate does not measure:

  • Back leakage/return flow
  • Solenoid response time
  • Reveal external leakage issues (common on LB7 engines)

These are all critical factors to the performance of the injectors and overall engine.

For the ECM to measure a balance rate, it takes in account the fuel rate from the fuel pump and is used to factor how far off each injector is from the average flow of fuel.

Essentially, this is all the balance rate is measuring. When viewing the rates, a cylinder with (+) means that its injector is using more fuel than the average fuel rate and a (-) translates to less fuel. GM states that balance rates should be no more than plus or minus 4 (+4/-4) in park at operating temperature. Unfortunately balance rates do not always provide a 100% accurate diagnosis of the injector’s performance due to numerous variables present in the engine. Cylinder compression, friction, fuel rail pressure, and the fuel pressure regulator are variables that can greatly manipulate the balance rate test.

Checking balance rates is the best place to start when diagnosing a troublesome fuel system, but it is definitely not the absolute answer. With a balance rate test, you are not getting the complete injector analysis. A balance rate shows a small fraction of available diagnostics compared to a common rail injector bench test.

The only way to eliminate the variables present in the vehicle and identify if an injector is running at factory specifications, is to remove the injector from the engine, clean, flush and test it on a properly programmed test stand.  This process allows every component of the injector to be tested under simulated engine conditions.

It is important that injectors are tested at normal operating temperature, from low idle pressures all the way up to full load pressures (as much as 29,000 psi). These tests measure injector delivery, return flow and response time, as well as leakage and spray pattern.

At InjectorsDirect.com, we test all of our injectors using the highest standards, and we back them up with an unbeatable warranty.

To learn more about balance rates, and the types of injectors we offer, please feel free to email us or call us directly at the shop (1-800-500-0980), and we’d be happy to discuss in more detail or help you identify what injectors you need to get your truck back on the road again.

White smoke from an LB7 Duramax engine often indicates faulty injectors.

We’ve heard of rollin’ coal, but rollin’ snow? Not a good sign.

Blowing white smoke is a red flag for your diesel engine, yet we see this happen all the time to our customers.

In many cases, white smoke emanating from the tailpipe (often at idle once the engine reached operating temperature) typically means a worn out injector.

Now this isn’t always the case, but after some trouble shooting we’re usually the go-to shop when diesel drivers need refurbished, rebuilt, or new injectors.

WHITE SMOKE

White smoke often occurs when there is either too much fuel being injected into the combustion chamber, or not enough heat to burn the fuel.  Un-burned fuel travels through the exhaust system & exits out the tailpipe which will produce a scent of rich, un-burnt diesel. Other causes of white smoke include lack of compression, or water/coolant entering the combustion chamber.

BLACK SMOKE

Black smoke indicates excess fuel is being injected into the combustion chamber and/or not enough air is present.   This can be caused by worn/leaking injectors or restrictions in the air intake system.

BLUE SMOKE

Blue smoke is normally the result of engine oil entering & burning inside the combustion chamber.  This is most often caused by low compression, or worn piston rings.

But what we see more often than not are issues related to worn injectors.

Once the problem injector(s) are confirmed (by checking the balance rates and/or capping the feed line to injectors one by one, or bench testing), it’s time to get it fixed.

As we’ve written previously, we test the heck out of injectors with state-of-the-art equipment you won’t find anywhere else. We also stand behind all of our injectors with the best expanded warranty in the business.

When you are shopping for replacement injectors, it’s best to go with a shop that has experience & utilizes the latest testing equipment.

Rest assured, InjectorsDirect.com has all the equipment necessary to clean and accurately test common rail (Duramax and Cummins 2001-present, including piezo) and H.E.U.I. (Ford 7.3 & 6.0) injectors.

You can learn more on our injector testing equipment page, and we’re always happy to provide an accurate assessment of your injector performance, and honest advice on your best repair or replacement options for your budget.

We’ve been doing this since 2009, and have seen just about everything when it comes to failing fuel injectors.

So the last thing we’re going to do is blow smoke.

Contact us for more information, and we’ll get you back on the road again in no time.

Sell Used Injector CoresLooking to sell used injector cores?

InjectorsDirect.com has been your go-to destination for diesel injectors since 2009, so we like to think we know a thing or two about selling – and also buying back – diesel injectors.

InjectorsDirect.com pays top dollar for your used injector cores, and, if you don’t want to wait for a check in the mail, we’re even willing to pay you for cores prior to shipment via PayPal.

If you have injector cores that are in good shape for the line of diesel injectors we carry, contact us today for a current price list and we’ll let you know just how much your cores are worth for Chevy, GMC, Dodge or Ford diesel trucks.

Whether you’re interested in unloading some used injectors, or picking up a new set, InjectorsDirect.com is your one-stop destination.

For more information, contact us today for a current price list and we’ll do our best to take those cores off your hands and help get you into a new set of injectors that’ll get you back on the road in no time.

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