Home Tips & Tricks How to Check the Injectors on a 7.3L Diesel Engine

How to Check the Injectors on a 7.3L Diesel Engine

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There are eight fuel injectors on the 7.3-liter diesel engine; one corresponding to each cylinder. Placed under the fuel rails, the fuel injectors have a solenoid which opens a valve when engaged to allow pressurized fuel to spray into the combustion chamber. Fuel injector failure may result in lean or rich conditions in individual cylinders during combustion. Improper fuel distribution may result in loss of power, triggering of engine codes or mechanical failure. Identifying fuel injector failure early can prevent costly repairs associated with too rich or too lean combustion conditions.

Things You’ll Need

Stethoscope, Screwdriver, Multimeter

Instructions