Table 40
Troubleshooting Test Steps Values Results
1. Drain the Fuel/Water Separator Bowl
A. Turn the ignition key to the OFF position.
B. Drain the fuel/water separator bowl. Refer to the Operation and
Maintenance Manual, “Fuel System Primary Filter/Water Separator
- Drain”.
C. If necessary, prime the fuel system. Refer to the Operation and
Maintenance Manual, “Fuel System - Prime”.
D. Turn the ignition key to the ON position. Do not start the engine.
Wait for 1 minute.
Fuel/water
separator
Result: The “Water-In-Fuel” warning disappears within 1
minute.
Proceed to Test Step 2.
Result: The “Water-In-Fuel” warning remains on.
Proceed to Test Step 3.
2. Confirm that there is no Water in the Fuel
Run the engine for 5 minutes.
Water in fuel Result: The “Water-In-Fuel” warning does not reappear
within the 5 minutes.
Return the unit to service.
Result: The “Water-In-Fuel” warning reappears within the 5
minutes.
The fuel supply is contaminated with water. Drain the fuel
tank and then fill the fuel tank with clean fuel.
Repeat the procedure from Test Step 1.
3. Water-In-Fuel Switch
A. Check the operation of the Water-In-Fuel switch. Refer to Trou-
bleshooting, “Water In Fuel - Test”.
Water in fuel
switch
Result: The Water-In-Fuel switch required a repair.
Repeat the procedure from Test Step 1.
Result The Water-In-Fuel switch is OK.
The fuel supply is contaminated with water. Drain the fuel
tank and then fill the fuel tank with clean fuel.
Repeat the procedure from Test Step 1.
i06006670
Fuel Rail Pressure Problem
This procedure covers the following diagnostic codes:
Table 41
Diagnostic Trouble Codes for the Fuel Rail Pressure
J1939
Code
Description Notes
157-0 Engine Injector Metering
Rail #1 Pressure : High -
most severe (3)
The Electronic Control Module (ECM) detects the following conditions:
The fuel rail pressure is greater than 179000 kPa (25962 psi) while the engine has been derated.
If equipped, the warning lamp will flash and the shutdown lamp will come on. The engine will be shut
down.
(continued)
92 UENR0612
Symptom Troubleshooting
This document has been printed from SPI2. NOT FOR RESALE
To Next Page
Loading...
