Fuel Injector Corrosion Inspection: Overview

WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

This service document provides visual inspection guidelines for corrosion detection on fuel injectors used in Cummins 6.7L powered Dodge Ram vehicles. This includes both Pickup truck, model years 2007-Present (2500 & 3500 Series) and Cab Chassis model years 2007-Present (4500 & 5500 Series). For removal and installation procedures, refer to the FUEL SYSTEM article.

NOTE:

If the fuel injectors are being removed such as for engine tear down or diagnostic purposes, be sure to mark each injector with its corresponding cylinder number. The fuel injectors MUST be reinstalled into the original (same) cylinder due to the fuel injector correction code.

NOTE:

Corrosion has been shown to cause an intermittent condition for P020X fault codes.

NOTE:

Corrosion can cause misfire, knock, smoke, and hard/no start.