This Cummins 3382 troubleshooting document explains Fault Code 3382 for the Engine Exhaust Gas Recirculation system on CM2250 engines. It covers the circuit description, diagnostic conditions, fault-code effects, guided checks, associated service procedures, and INSITE™ electronic service tool actions for low measured EGR flow.
Official Cummins 3382 troubleshooting document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250, ISC8.3 and ISL9 CM2250, ISX11.9 CM2250, ISX15 CM2250, QSL9 CM2250, QSB6.7 CM2250, GX CM2250 |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; Engine Exhaust Gas Recirculation (EGR) System |
| Publication no. | Not stated for this file; associated procedure bulletin numbers include 4022254, 4022257, 4022250, 2883445, 4022256, and 4022255 |
| Year/Revision | Last Modified: 08-Dec-2010; overview Last Modified: 11-Jun-2010 |
| Pages | 17 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- FAULT CODE 3382
- Component Location
- Conditions for Running the Diagnostics
- Conditions for Setting the Fault Codes
- Action Taken When the Fault Code is Active
- Conditions for Clearing the Fault Code
- Shop Talk
- Associated Procedures
- Troubleshooting Steps
- Guided Step 1 – Check the fault codes.
- Guided Step 2 – Check the EGR plumbing for leaks and restrictions.
- Guided Step 3 – Check the EGR delta pressure sensor and circuit.
- Guided Step 4 – Check the ECM and engine harness.
- Guided Step 5 – Check ECM calibration and clear fault codes.
Applicable truck models
This file applies to Cummins CM2250 engine families named in the extract, including ISB6.7 CM2250, ISC8.3 and ISL9 CM2250, ISX11.9 CM2250, ISX15 CM2250, QSL9 CM2250, QSB6.7 CM2250, and GX CM2250 where the listed EGR diagnostic procedures are used. The fault is SPN 3058 FMI 18, with an amber lamp and possible reduced engine performance when measured EGR flow is lower than commanded. The procedure references checks for active EGR valve fault codes, Fault Code 125, Fault Code 2274, EGR plumbing leaks, soot traces, differential pressure ports, sensor mounting surface leaks, EGR tube restrictions, EGR valve restrictions, EGR cooler restrictions, ECM connector pin condition, engine harness condition, and ECM calibration revision. See the official manufacturer site at Cummins official website.
Who needs this Cummins 3382 troubleshooting manual
Mechanics, fleet technicians, and workshop owners need this Cummins 3382 troubleshooting manual when diagnosing EGR low-flow complaints on CM2250 engines using INSITE™. It is most useful when the repair path requires checking EGR differential pressure sensor inputs, wiring connectors, calibration status, and related EGR hardware before clearing the fault code.
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