Water In the Fuel System and Corrosion on Fuel System Components

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Technical Service Bulletin
Technical Service Bulletin: TSB200182
Released Date: 08-Oct-2020
Water In the Fuel System and Corrosion on Fuel System Components

Water In the Fuel System and Corrosion on Fuel System
Components
Warranty Statement
The information in this document has no effect on present warranty coverage or repair practices, nor does it
authorize TRP or Campaign actions.

Contents
Product Affected
• B6.7 CM2350 B121B
Issue
Water in the fuel systems will cause corrosion on fuel system components. This document outlines ways to
identify corrosion on fuel system components and detect water in the fuel.
Symptom:
• Corrosion on fuel system components
• Any of the fault codes found in Table 1 below
Table 1, Fault Codes Related to Fuel System Corrosion
Fault Code

Fault Code Description

322

Injector Solenoid Driver Cylinder 1 Circuit - Current
Below Normal or Open Circuit

323

Injector Solenoid Driver Cylinder 5 Circuit - Current
Below Normal or Open Circuit

324

Injector Solenoid Driver Cylinder 3 Circuit - Current
Below Normal or Open Circuit

325

Injector Solenoid Driver Cylinder 6 Circuit - Current
Below Normal or Open Circuit

331

Injector Solenoid Driver Cylinder 2 Circuit - Current
Below Normal or Open Circuit

332

Injector Solenoid Driver Cylinder 4 Circuit - Current
Below Normal or Open Circuit

559

Injector Metering Rail 1 Pressure - Data Valid But
Below Normal Operating Range - Moderately Severe
Level

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Table 1, Fault Codes Related to Fuel System Corrosion
Fault Code

Fault Code Description

1139

Injector Solenoid Driver Cylinder 1 - Mechanical
System Not Responding or Out of Adjustment

1141

Injector Solenoid Driver Cylinder 2 - Mechanical
System Not Responding or Out of Adjustment

1142

Injector Solenoid Driver Cylinder 3 - Mechanical
System Not Responding or Out of Adjustment

1143

Injector Solenoid Driver Cylinder 4 - Mechanical
System Not Responding or Out of Adjustment

1144

Injector Solenoid Driver Cylinder 5 - Mechanical
System Not Responding or Out of Adjustment

1145

Injector Solenoid Driver Cylinder 6 - Mechanical
System Not Responding or Out of Adjustment

1654

Engine Misfire Cylinder 1 - Condition Exists

1655

Engine Misfire Cylinder 2 - Condition Exists

1656

Engine Misfire Cylinder 3 - Condition Exists

1657

Engine Misfire Cylinder 4 - Condition Exists

1658

Engine Misfire Cylinder 5 - Condition Exists

1659

Engine Misfire Cylinder 6 - Condition Exists

1718

Engine Misfire for Multiple Cylinders - Condition
Exists

4691

Engine Injector Metering Rail 1 Cranking Pressure Data Valid But Below Normal Operating Range Moderately Severe Level

5895

Engine Misfire Cylinder #1 - Root Cause Not Known

5896

Engine Misfire Cylinder #2 - Root Cause Not Known

5897

Engine Misfire Cylinder #3- Root Cause Not Known

5898

Engine Misfire Cylinder #4 - Root Cause Not Known

5899

Engine Misfire Cylinder #5 - Root Cause Not Known

5911

Engine Misfire Cylinder #6 - Root Cause Not Known

1852

Water in Fuel Indicator - Data Valid But Above
Normal Operating Range - Moderately Severe Level
- Amber

Root Cause
• Water in the fuel system causes damage to the fuel system.
Verification and Resolution
• Inspect fuel system components for corrosion.

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a. Only if directed by published troubleshooting to remove the specific parts listed below, check parts
listed below for corrosion. Do not remove parts outside of those directed by published
troubleshooting.
b. Parts to inspect for corrosion if directed to remove according to published troubleshooting:
i. Injector fuel supply connector (For example of corrosion, see Figure 2 below)
ii. Fuel pump electronic fuel control actuator (For example of corrosion, see Figure 4 below)
iii. Fuel rail pressure relief valve (For example of corrosion, see Figure 6 below
• Only If corrosion is found on any of the components listed above, proceed to inspect the fuel tank and see
Service Bulletin, Water in Fuel Contamination, Bulletin 5659823 (/qs3/pubsys2/xml/en/bulletin/Examples of
Water in Fuel.html) for restoring the fuel system.
• Sample the fuel and inspect for signs of water in the fuel tank.
a. Sample fuel from the lowest point of the fuel tank.
b. Siphon fuel or use fuel tank drain plug and drain fuel into a clear container.
c. Let the fuel sit for 5 minutes.
• Check fuel sample for signs of water in the clear container.
a. If free-standing water is found in the bottom of the clear container (See Figure 7 below), see Service
Bulletin, Water in Fuel Contamination, Bulletin 5659823 (/qs3/pubsys2/xml/en/bulletin/5659823.html)
for repair.
b. If no free-standing water is found at the bottom of the container:
i. Print fuel bar chart. Select hyperlink below for fuel bar chart.

Note :
https://quickserve.cummins.com/common/files/qsol/cms/distillate_fuel_bar_chart.pdf
(https://quickserve.cummins.com/common/files/qsol/cms/distillate_fuel_bar_chart.pdf)
ii. Place fuel bar chart behind the fuel sample and compare with examples in Figure 8-10.
iii. If Line 1 on fuel bar chart is not visible while looking through fuel sample, see Service Bulletin,
Water in Fuel Contamination, Bulletin 5659823 (/qs3/pubsys2/xml/en/bulletin/5659823.html) for
restoring the fuel system.
Examples of Corrosion:
Signs of corrosion can be seen in the fuel pump electronic fuel control actuator, fuel rail pressure relief valve,
and the injector fuel supply connector. See Figures below for examples.

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Figure 1, Normal and Acceptable Corrosion on Injector Connector Above Oring.

Figure 2, Abnormal and Unacceptable Corrosion on Injector Connector Below Oring.

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Figure 3, Clean and Acceptable Fuel pump Electronic Fuel Control Actuator.

Figure 4, Corroded and Unacceptable Fuel pump Electronic Fuel Control Actuator.

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Figure 5, Clean and Acceptable Fuel Rail Pressure Relief Valve Corrosion.

Figure 6, Corroded and Unacceptable Fuel Rail Pressure Relief Valve Corrosion.
Examples of Water in Fuel

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Figure 7, Free Standing Water in Diesel Fuel.

Figure 8, 0 ml of Water Added to Diesel Fuel.

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Figure 9, 1 ml [ .0 fl-oz ] Water Added to Diesel Fuel.

Figure 10, 3 ml [ .10 fl-oz ] Water Added to Diesel Fuel.

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Figure 11, 5 ml [ .17 fl-oz ] Water Added to Diesel Fuel.

Document History
Date

Details

2020-8-31

Module Created

2020-9-21

Fixed typos.

2020-10-8

Update issue section.

Last Modified: 08-Oct-2020

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