IK1201062 ­ SPN 3055 FMI 1 No start due to low rail fuel pressure Troubleshooting

Page 1 of 3

Countries:

CANADA, UNITED STATES Document ID: IK1201062

Availability:

ISIS, FleetISIS

Revision:

0

Major System:

ENGINES

Created:

1/29/2014

Current Language: English

Last Modified: 2/7/2014

Other Languages: NONE

Author:

Viewed:

Charles Schroeder

457
Less Info

Coding Information

Hide Details

Copy Link

Copy Relative Link

Bookmark

Add to Favorites

Print

Provide Feedback

View My Bookmarks

Helpful

Not Helpful

1

1

Title : SPN 3055 FMI 1 No start due to low rail fuel pressure Troubleshooting
Applies To : EPA 2010 MaxxForce 11 / 13

SPN 3055 FMI 1 - Low Fuel Pressure at Start

Condition / Description

Setting Criteria

Enable Conditions / Values

Fuel Rail Pressure below minimum pressure.FRP less than 1,450 psi Engine Speed > 70 rpm
(10,000 kpa)

Time Required
0.5 seconds

Ambient Pressure > 12 psi (83 kPa)
Ambient Temp > 19 F (­7.04 C) Battery Voltage (before crank) >
11 Volts

Fault Overview
Fault code sets when the Engine Control Module (ECM) detects Fuel Rail Pressure (FRP) does not build within a predetermined time while the engine is cranking.
Malfunction Indicator Lamp (MIL) Reaction
MIL will illuminate when this fault is detected during two consecutive drive cycles.
Associated Faults
SPN 94 FMI 0 (FDP); SPN 157 FMI 3, 4, 20, and 21 (FRP); and SPN 633 FMI 3, 4, and 5 (FPCV)
Drive Cycle to Determine Fault Status
Drive Cycle 2 in 2013 HD-OBD Diagnostic Reference Manual.
Possible Causes
• Fuel Rail Pressure (FRP) sensor or circuit fault
• Low fuel level
• Fuel leaks
• Restricted engine mounted secondary fuel filter
• Aerated fuel delivery
• Restricted fuel supply
• Internal leak in high-pressure fuel system
• Leaking FRP relief valve
• Leaking KUEV valve
• Failed High-pressure fuel pump
LOW PRESSURE FUEL SYSTEM TESTING
StepAction

Decision

1

Check fuel level. Read fuel level using the vehicle instrument panel gauge and
perform a visual inspection of fluid level in the fuel tank.

Yes: Go to step 2.

Is sufficient fuel in the fuel tank and Not leaking?

No: Add fuel or repair leaks, and prime engine.

StepAction
2

Decision

Using Electronic Service Tool (EST) with ServiceMaxx™ software, check Diagnostic Yes: Go to step 3.
Trouble Code (DTC) list for SPN 94 FMI 0 (FDP); SPN 157 FMI 3, 4, 20, and 21
(FRP); and SPN 633 FMI 3, 4, and 5 (FPCV).
No: Repair SPN 94 FMI 0; SPN 157 FMI 3, 4, 20, and 21; and SPN 633 FMI 3, 4,
Is EST DTC list free of SPN 94 FMI 0; SPN 157 FMI 3, 4, 20, and 21; and SPN 633 and 5. See health report for link to diagnostics.
FMI 3, 4, and 5?

https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 3/4/2014

IK1201062 ­ SPN 3055 FMI 1 No start due to low rail fuel pressure Troubleshooting

StepAction

Decision

3

Yes: Go to step 4.
No: Repair low cranking speed.

Check that the engine cranks at a minimum of 130 RPM.

Page 2 of 3

Does the engine crank at a minimum of 130 RPM?

StepAction

Decision

4

Yes: Go to SPN 3055 FMI 15 (IKnow 1201063).

Verify the engine starts. Crank engine for maximum of 20 seconds. If engine does
not start, wait 2 minutes and try again.

No: Go to step 5.
Does engine start and maintain idle?

StepAction

Decision

5

Yes: Go to step 9.

Check for low FDP. With Fuel Pressure Gauge ZTSE4681 connected at inlet to
secondary fuel filter, monitor FDP while cranking.

No: Got to step 6.
Does FDP measure > 30 PSI?

StepAction

Decision

6

Yes: Repair restriction in fuel supply to Low-Pressure Fuel Pump.
No: Go to step 7

Check for low FDP. Perform Fuel Delivery Pressure (FDP) Test (page 125).
Is FDP > 30 PSI gauge or 20 PSI in ServiceMaxx?

StepAction

Decision

7

Yes: Go to step 8.
No: Replace high pressure pump.

Check for failed low­pressure fuel pump. Perform Fuel Dead
Head Test (page 126). Is pressure > 65 psi?

StepAction
8

Decision

Check for a restricted engine fuel filter. Perform High-pressure Pump Inlet Pressure Yes: Go to step 9.
Test.
No: Replace Engine Fuel Filter.
Does the fuel pressure gauge read > 30 PSI?

StepAction

Decision

9

Yes: Go to step 10.
No: Repair aeration in low pressure fuel system (according to Fuel Aeration Test).

Check for aeration in low pressure fuel system. Perform Fuel Aeration Test (page
127).
Is fuel system free from aeration?

StepAction

Decision

10

Yes: Go to step 11.
No: Repair restriction in low pressure fuel system (according to Fuel Restriction
Test).

Check for restriction in low pressure fuel system. Perform Fuel Restriction Test
(page 130).
Is fuel system free of restriction?

HIGH PRESSURE FUEL SYSTEM TESTING
StepAction
11

Decision

Check for fuel return. Perform Fuel Rail Pressure (FRP) Return Flow Test part 1.
Yes: Go to step 12.
Disconnect fuel drain tube assembly at rear of cylinder head. Connect High
Pressure Return Line Tester ZTSE4887 to cylinder head and route other end to
diesel fuel container. Crank engine for 20 seconds while monitoring fuel return from
High Pressure Return Line Tester ZTSE4887.
No: Go to step 14.
Is the line free of return fuel from cylinder head and rail?

StepAction
12

Decision

Check for a failed fuel pressure relief valve. Perform Fuel Rail Pressure (FRP)
Yes: Go to step 13.
Return Flow Test part 2. Restore all fuel line connections. Disconnect fuel rail return
line at fuel rail. Connect High Pressure Return Line Tester ZTSE4887 to fuel rail
No: Replace fuel rail.
return port and route other end to diesel fuel container. Crank engine and monitor
fuel return from High Pressure Return Line Tester ZTSE4887.
Is the line free of return fuel from fuel rail?

https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 3/4/2014

IK1201062 ­ SPN 3055 FMI 1 No start due to low rail fuel pressure Troubleshooting

StepAction

Decision

13

Yes: Replace HP Pump then go to step 15.

Check for a failed KUEV Valve. Complete the HP Pump Return Flow Test (page
135).

Page 3 of 3

No: Replace KUEV valve.
Is fuel line free of fuel from the high­pressure pump return port?

StepAction

Decision

14

Yes: Retest for SPN 3055 FMI 1 and if it remains notify supervisor.
No: Replace the last capped injector and all HP lines removed during this test.

Check for an internal leak in the high-pressure fuel system. Perform Fuel Rail
Pressure (FRP) Leak Isolation (page 173).
Is engine free of leaking injector?

StepAction

Decision
Yes: Retest for SPN 3055 FMI 1.

15
Run HP Pump Fuel Return Pressure Test (page 174). Is pressure < 13 psi?
No: Repair restriction in fuel return line between high-pressure fuel pump and fuel
tank.
NOTE: After performing all diagnostic steps, if SPN 3055 FMI 1 remains, verify each step was completed correctly and the proper decision was made. Notify
supervisor for further action.

Part Description

Part Number

Qty
1

SRT Description

SRT link

(hr)

Step

High pressure fuel rail

3006765C91

High pressure fuel rail, Replace

R12­7452U

Group

Noun

12000-Engine

452

3.0 12000-Engine

454

3.8

12
1

3007641C93

1

KUEV

High Pressure Fuel Pump & Drive Gear, Replace

R12-7454U-20

KUEV, Replace

A12­T1

13

High pressure fuel pump kit
3015878C91

13

Hide Details

0.3
12000-Engine

454

Feedback Information
Viewed:

456

Helpful:

1

Not Helpful: 1
No Feedback Found

Copyright © 2014 Navistar, Inc.

https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 3/4/2014