NHTSA ID Number: 10115304
Manufacturer Communication Number: IK1200915
TSB/Document Date: 2017-08-16
Summary
SPN132(x) - FMI 31 Misfire Diagnostics
IK1200915 SPN132(x) - FMI 31 Misfire Diagnostics IBB
Page 1 of 7
Countries:
CANADA, UNITED STATES Document ID: IK1200915
Availability:
ISIS
Revision:
23
Major System:
ENGINES
Created:
6/7/2013
Current Language: English
Last Modified: 1/25/2016
Other Languages: Español,
Author:
Viewed:
Mujtaba Aidroos
12030
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Title : SPN132(x) - FMI 31 Misfire Diagnostics IBB
Applies To : EPA 2010, 2013 and 2015 11L & 13L Engines
CHANGE LOG
01/20/2016 - Article updated for CPA testing and case file data archiving.
10/19/2015 - Article was republished for a few months for data testing.
08/17/2015 - Retired article. Refer to the diagnostics in manual 1741.
08/13/2015 - Author updated for feedback purposes.
07/16/2015 - Fixed SRTs for Injector Replacement (note: For ProStar, injectors can be replaced w/out pulling the dog boxnew SRT)
06/24/2015 - Fixed broken link to Cylinder Balance Test, fixed coding for New Zealand
01/13/2015 - Fixed broken links to iKNow Article's in Diagnostic Steps.
DESCRIPTION
This document provides diagnostics and repair procedures for SPN 132x FMI 31 Misfire Cylinder - (x) fault codes. Thoroughly review the document
to ensure that the engine is repaired correctly and within warranty guidelines. Safeguards have been included in certain calibrations to prevent
engine damage, and will not allow the engine to restart.
Navistar
is no longer replacing Cylinder Heads for a fallen Valve Bridge. Cylinder Heads
are cleanable and able to return to service.
If you are a fleet customer and do not have access to the Case File System, the truck will
need to go to a local dealership for repairs.
An interview with the driver of the unit at the time of the fault code setting is critical with
assisting the troubleshooting process
Common questions:
• Is there a low power with the fault code
• Does the unit have a rough running engine
• Has the unit been down for a major repair (s) recently
SYMPTOMS
Diagnostic Trouble Codes:
DTC/Light
Description
SPN 1322 FMI 31 (link to SARP)
Misfire - Multiple Cylinders
SPN 1323 FMI 31 (link to SARP)
Misfire - Cylinder 1
SPN 1324 FMI 31
Misfire - Cylinder 2
SPN 1325 FMI 31
Misfire - Cylinder 3
SPN 1326 FMI 31
Misfire - Cylinder 4
SPN 1327 FMI 31
Misfire - Cylinder 5
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 2/2/2016
IK1200915 SPN132(x) - FMI 31 Misfire Diagnostics IBB
SPN 1328 FMI 31
Page 2 of 7
Misfire - Cylinder 6
Customer Observations or Concerns:
Misfire or rough running engine
- Engine Self Shut-down
MIL Lamp
Fault Code Entry Conditions:
Condition / Description
Setting Criteria
Enable Conditions / Values
Crankshaft acceleration
indicates misfire on individual
cylinders
or
Misfire event count >180
Crankshaft acceleration
indicates misfire on multiple
cylinders
•
•
•
•
•
•
•
•
•
•
Time
Required
Engine speed >500 rpm and 0 seconds
Battery voltage > 10.7 Volts
Battery voltage
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TSB/Document ID: IK1200915
Replacement Service Bulletin Number:
MFR Communication Date: 2016-01-25
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
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