Diesel Warranty Policy Limited Warranty Policy

Injector Warehouse Fuel warrants our products to be free from defects in material or workmanship in accordance with the following.

The vehicle must be maintained and serviced following the OEM service schedules pertaining to oil and fuel. Powerstroke and Navistar must follow oil and filter change intervals.

All other must follow the fuel filter change intervals. Product submitted for warranty must be accompanied with completed Information and proof of maintenance compliance outlined in the warranty submission document.

The warranty period commences the day the product is delivered to the original consumer purchaser. Injector Warehouse Fuel warrants it will replace, free of charge, any product which, under normal conditions of use and service, proves to be defective in material or workmanship and which is within the warranty period below.

Warranty Coverage

The Injector Warehouse Fuel Limited Warranty INCLUDES:

Warranty parts limited to material and workmanship. Unlimited miles/kilometers on installed parts within the first 12 months after commencement of part warranty period. Exceptions Parts #EGR500, EGR501 carry a Lifetime warranty on the part only.

Warranty Exclusions

Failures caused by fuel or oil contamination, fire damage, misuse, negligence, modification, abuse, improper application, installation or operation. Water damage: can be identified by discoloration of injector. The Powerstroke injectors will turn a bronze tint when water has entered the fuel system. Combustion blow by:

  • Combustion blow by can be identified when the bottom portion of the injector below the bottom O ring is covered with exhaust.
  • This is caused by improper injector bore cleaning before installation or failure to install the new copper sealing washer or not removing the old sealing washer.
  • Failures caused by unauthorized service or use of unauthorized parts.

Warranty Disclaimer THIS WARRANTY IS IN LIEU OF ALL OTHER EXPRESS AND IMPLIED WARRANTIES, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

Injector Warehouse FUEL DOES NOT ASSUME ANY RESPONSIBILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.

THIS WARRANTY SETS OUT YOUR EXCLUSIVE REMEDIES WITH RESPECT TO THE PRODUCTS COVERED BY IT.

NO ATTEMPT TO ALTER, MODIFY, OR AMEND THIS WARRANTY SHALL BE ALLOWED.

SOME COUNTRIES, STATES, PROVINCES AND OTHER JURISDICTIONS DO NOT ALLOW LIMITATIONS ON HOW LONG IMPLIED WARRANTIES LAST, OR THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU.

THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM COUNTRY TO COUNTRY OR STATE TO STATE OR PROVINCE TO PROVINCE OR JURISDICTION TO JURISDICTION.

Other Resources Available

Please take the time to read our informative and helpful document named Pre-Installation Checklist. It will help an installer to note and check possible other problems with your diesel vehicle systems before installation, to help prevent repeating the failure you are about to repair.

If you do have a part that you feel falls within our warranty guidelines please fill out the form named Warranty Request Form completely and include it with the part that is being returned, you will also need to call and receive an RMA# to help facilitate a speedy resolution.

Please call 877-273-0021 if you need assistance.

Injector Warehouse Pre-Install Checklist

Determine Why Your Injectors Have Failed

In a perfect world the injector should outlast the engine. Modern day fuel injectors are designed so that almost no internal parts touch themselves. This means they should not wear out. Wear starts when one of or a combination of the following conditions exist. The first is the introduction of water and dirt. When this happens the parts start contacting themselves and wear begins. The next would be lack of proper fuel flow and pressure. The fuel going through the injector does a few things. The fuel lubricates the injectors and also prevents the precision parts from coming in contact with each other. This means proper fuel flow and pressure are extremely important. The next important thing is proper voltage to the fuel injectors. Low voltage will cause the electrical solenoids on the injectors to work much harder and eventually causing damage leading to failure.

To Prevent These Conditions a Few Things Should Be Considered

Clean Fuel: The fuel condition should be checked before any injector in installed. Water collects in a fuel Tank over time and can cause rust to develop. Changing the fuel filters is a must for the injector life. Replacing the fuel filters on every other oil change is a good idea.

Fuel Pressure: Fuel pressure should be checked before installing a new set of injectors. Low fuel pressure can result in cracked nozzles or shortened injector life. The powerstroke has a known problem of low fuel flow and pressure. The quick fix for a 6.0 powerstroke is to install an updated fuel pressure regulator spring and rebuild kit. This will increase fuel pressure making the injectors work better and last longer. The banjo bolts on the fuel line connections are a known fuel flow restriction point. The easiest fix is replacing the banjo bolt of the 6.0 with the bolts from the 6.4.The banjo bolts on the 6.4 allow for better fuel flow. By doing the things mentioned here you will achieve the proper fuel pressure needed to eliminate the problems associated with low fuel pressure and achieve longer life for your fuel injectors.

 

Injector Voltage: Proper injector voltage is a must. The voltage can be checked on the 6.0 powerstroke very easily. The Fuel Injector Control Module (FICM) supplies 48 volts to the injectors when triggered by the ECM. The FICM on the 6.0 powerstroke is located on the valve cover on the drive side toward the back of the engine. The FICM has a small cover that is oblong and has two bolts. Remove the cover and check the voltage going through the screws under the cover. Use a volt meter to check the voltage. Be careful not to touch the side of the module with the probe or this will short the module and cause damage. The FICM should produce 48 volts. The truck will run on as little as 30 volts but If the voltage is lower than 43 volts it would be a good idea to replace the FICM. We do offer an upgraded FICM that will product 58Volts. This makes the injectors work even better than ever. The next place for a voltage drop is the injector wiring harness. To check the harness pull on the harness with the engine running. If you notice any change in the engine this will be a sign of a bad harness and would need replacing.

Oil pressure at the injectors: The 6.0 powerstroke uses engine motor oil to fire the injectors. This is why the oil change cycle is so critical for proper injector operation. Oil leaks can appear in various places in the engine. The common places are the dummy plug in the oil rail. This is a good idea to replace when installing new injectors. The next place is the High Pressure Oil Manifold (HPOM) injector cup/nipples. The o ring under the cup/nipple fails and causes a low volume high pressure leak. That will eventually lead to a failed injector. The high pressure engine oil sprays on the top of the injector damaging the o ring seal going into the injector. Until recently the only fix for this would have been a new HPOM from the OEM. An economical repair is available now with the Injector Warehouse ISK606 injector cup/nipple repair kit. The ISK606 includes a new oil cup/nipple and o ring. A special tool #ISK607 is available for easy removal and installation. The tool also aligns the cup/nipples to the same orientation for ease of installation. During installation the nipple nut should be torqued to 75ft lbs. Replacing the HPOM cup/nipples is an inexpensive insurance for long injector service life.

If you need new injector more than likely you have one or more of these issues with your Engine. This information is directed toward the 6.0 powerstroke engine. The same basics minus the HPOM condition apply to all Diesel engines. Please check and repair these problems to prevent the same problem from happening again.

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