NHTSA ID Number: 10115469
Manufacturer Communication Number: IK1201246
TSB/Document Date: 2017-08-16
Summary
electric fuel pump & fuel system tips
IK1201246 MaxxForce DT, 9 & 10 electric fuel pump & fuel system tips
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CANADA, TAIWAN, UNITED STATES, MEXICO, PUERTO
RICO, GUAM, KOREA, SOUTH KOREA
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ID:
IK1201246
Availability:
ISIS, Bus ISIS, FleetISIS, Body Builder
Revision:
1
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Current
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Last
Modified:
12/3/2014
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Author:
3/16/2015
Matthew
Lazarz
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Title : MaxxForce DT, 9 & 10 electric fuel pump & fuel system tips
Applies To : EPA 2010 and later MaxxForce DT, 9 & 10
CHANGE LOG
Please refer to the change log text box below for recent changes to this article:
8/25/2014 - Updated non OEM fuel filter caution and added risks of incorrect Oring placement.
9/15/14- Added risks of CARQUEST and Wix fuel filters.
12/3/2014 - Rewrite to update diagnostic information.
2/6/2015 - Added OEM fuel filter warning PDF & fuel filter housing info.
3/2/2015 - Added Fuel Filter P/N, Updated Parts DYK letter added & added Fleetguard
to nonOEM list.
Step-based diagnostics for electric fuel pump
Step-based diagnostics for electric fuel pump available in.
2010 MaxxForce ® DT, 9, and 10 Engine Diagnostic Manual
Navistar® N9 & N10 Diagnostic Manual
DESCRIPTION
- EPA 2010 and later DT, 9 & 10 engines use a fuel module that incorporates many features, including an electric fuel pump, fuel heater and fuel strainer.
The fuel strainer can be seen when the pump is removed from the filter module.
The strainer should be cleaned at the filter replacement interval (30K miles / 43K Km / or 12 months). The strainer P/N is 1899335C91 (see images
below)
- Low fuel pressure and Hard Start or No Start conditions can be caused by at least two manufacturers of non OEM fuel filters.
- See differences in the fuel filter seals here and fuel filter recall G-Letter here.
- Non OEM Fuel Filter Warning for MaxxForce DT, 9, 10, N9 & N10 Engines here.
Navistar has received complaints that NAPA fuel filter FIL3994 can cause low fuel pressure. CARQUEST, Fleetguard FS19947 and WIX 86994 appear to be
made by the same mfg. as the NAPA filter.
Navistar's OEM fuel filter was developed specifically to work with features that are designed into the fuel filter housing. These features remove air from the
fuel system and produce the required fuel pressure, giving the engine optimum performance.
- Calibration updates have been made XUR1/XURB for 2010 Emissions EER5 for HD-OBD Emissions due to low fuel pressure DTC's 94-1, 94-17 &
94-18 being set erroneously. Do not perform diagnostics for these faults unless there is a starting or performance complaints.
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IK1201246 MaxxForce DT, 9 & 10 electric fuel pump & fuel system tips
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- Update the engine calibration (see calibration scorecard)
- To see if your calibration is newer than listed levels see IK1201085 Engine Calibration History
- If the vehicle has this code(s) and has a performance complaint then update the engine calibration AND follow step-based diagnostics (shown at beginning
of this article)
Low fuel pressure complaints can be caused by the wrong Oring being installed on the fuel pump
Be sure only brown O-rings are used.
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IK1201246 MaxxForce DT, 9 & 10 electric fuel pump & fuel system tips
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EPA 2007, 2010, HDOBD, N9 & N10 Engine Fuel Filter Housing
Image provided by Mark Ehlers
1. Regulator valve - fuel flows to tank
2. Aerated fuel flows to tank unrestricted by regulator valve
If non-OEM filter is used then fuel may flow here and low to no fuel pressure could occur
3. Fuel flows in from pump
4. Filtered fuel flows to injectors
SYMPTOM(s)
Diagnostic Trouble Code(s)
DTC
Description
Pressure Range to Set Time Before Fault Occurs
Entry Conditions
SPN 94 FMI 1
Fuel Delivery Pressure below Critical
10 PSI or less
1 Second
> 600 RPM 10 Seconds after starting
Or
SPN 94 FMI 1
Fuel Delivery Pressure below Critical
30 PSI or less
10 Seconds
> 600 RPM 10 Seconds after starting
SPN 94 FMI 17
Fuel Delivery Pressure below Minimum
45 PSI or less
45 Seconds
> 600 RPM 10 Seconds after starting
SPN 94 FMI 18
Fuel Delivery Pressure below minimum during cranking 45 PSI or less
8 Seconds
< 600 RPM
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IK1201246 MaxxForce DT, 9 & 10 electric fuel pump & fuel system tips
Page 4 of 6
SPECIAL TOOL(s) / SOFTWARE
-ServiceMaxx or Pocketmaxx
-Multimeter / DVOM
-ZTSE6023 fuel pump break-out tee
-3 test leads with male banana ends (part of ZTSE4435c)
-Battery charger or 12 volt auto/truck battery (charger must not be a smart-charger)
15 amp circuit breaker
SERVICE PARTS INFORMATION
Kit Description
Part Number
2013 HD-OBD Fuel Pressure Sensor
3016259C91
Quantity
Notes
Required
1
HD-OBD Only
2010 Fuel Pressure Sensor
1846481C92
1
2010 Only
2007 Fuel Pressure Regulator
1886152C91
1
2007 Only
2010 & Newer Fuel Pressure Regulator
1893801C92
1
2010 & Newer Only
Electric Fuel Pump Strainer & O-ring kit
1899335C91
1
2010 & Newer Only
EPA 2010 and Newer DT, 9 & 10
OEM Fuel Filter
1878042C92
1
2010 & Newer Only
Fuel System Tips
Note a dirty or plugged strainer should be replaced.
Do not replace the fuel pump for a dirty or damaged strainer.
Fuel Pressure Sensors.
2010 & 2013 HD-OBD Fuel Pressure Sensors Are Not Interchangable.
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IK1201246 MaxxForce DT, 9 & 10 electric fuel pump & fuel system tips
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There are two fuel pressure test ports on the engine.
1. The first port is a Compuchek and is located on the front of the filter module (unfiltered fuel pressure)
2. The second port is a Schrader™ valve located on the front of the intake manifold (filtered fuel
pressure).
The Schrader port can also be used to bleed air out of the system.
Note- Double check any below spec. pressure reading from this port as a poor connection can cause a
low pressure reading (but fuel rail pressure could be ok). Use ZTSE4681 and adapter ZTSE4657.
Fuel Pump Types
There are currently 2 types of fuel pump available, see details below:
The 6 pin style, the electrical connector on the fuel pump will have 6
pins, the engine harness may be equipped with 5 wires or 3 wires.
This Style of pump has internal overload protection that turns the
pump off under overload (high current draw situations).
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IK1201246 MaxxForce DT, 9 & 10 electric fuel pump & fuel system tips
Page 6 of 6
The 2 pin style, the electrical connector on the fuel pump will have 2
pins, the engine harness may be equipped with 5 wires, 3 wires or 2
wires.
This Style of pump does not have internal overload protection (if high
current draw occurs fuse will open).
WARRANTY INFORMATION
Warranty Claim Coding:
Group: 12000 Engine
Noun: 791 Engine Mechanical or Electric Fuel Lift Pump / T Inoperative
- Link to the Coding Manual: Click Here
Standard Repair Time(s):
Description
Chassis
SRT
Hours
Step Based Diagnostics & Pump Replacement
All
KL12-2048T .7
Step Based Diagnostics & Pump Replacement
RE Bus
I12-2048T
1.6
- Link to the Standard Repair Time Manual: Click Here
OTHER RESOURCES
Master Service Information Site
2010 MaxxForce ® DT, 9, and 10 Engines
Navistar® N9 & N10 Diagnostic Manual
Feedback Information
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Comments
You received the following feedback From: dy08955 - David Gabrielle Email Address: [email protected] Job Classification: SE008, Service Technician Dealer: TRUCK KING INTL
DY08955 IDEALEAS Feedback: Under Service Parts Information it lists: Electric Fuel Pump Strainer & O-ring kit 1899335C91 2010 & Newer Only. When I look up the Pump assy. by VIN:
DH184237, it lists 1891305C94 as the part number. Which one should be used for this chassis?
Created
Date
3/18/2015
7:02:47 AM
You received the following feedback From: dy32771 - Michelle Wood Email Address: [email protected] Job Classification: SE003, Service Manager Dealer: NORFOLK
3/30/2015
DY32771 TRUCK CENTER INC Feedback: Have one in that the strainer was terribly clogged,needs a fuel pump. fleet company maint records show fuel filter part # PF7978, my parts manager
12:58:38 PM
states this is a baldwin filter,another 33994 filter, and parts kit part # 11INTPM ..which is supposed to include a fuel filter.. Didnt know if you had others.. thanks
Copyright © 2015 Navistar, Inc.
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TSB/Document ID: IK1201246
Replacement Service Bulletin Number:
MFR Communication Date: 2015-03-16
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP
MFR Component System:
MFR Component Subsystem:
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