1 cause of premature fuel injector failures - both for factory-installed and aftermarket injectors - and can occur at many points during an installation. Having proper tools and a spotless service area is essential when replacing fuel injectors. Here are simple steps every technician should follow to safeguard against mistakes when replacing fuel injectors in medium- and heavy-duty diesel engines. Because for a component as critical and delicate as the fuel injector, it doesn’t take much of a mistake during installation to create a major headache for a customer down the road. Not every service provider has perfected the replacement process. This means the task of replacing them regularly falls to second and third vehicle owners, and the service providers they on which they rely.Īftermarket fuel injector manufacturers say there are thousands of great injector replacement technicians in the aftermarket but, unfortunately, not every shop has one. With typical life cycles of 500,000 to 750,000 miles, most factory-installed fuel injectors reach the end of their useful life after their engine ages out of its OEM warranty. Replacing fuel injectors is a common aftermarket service event.
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