NHTSA ID Number: 10115546
Manufacturer Communication Number: IK1201012
TSB/Document Date: 2017-08-16
Summary
SPN 731 FMI 16 Knock Detected: Cylinder Acceleration above Normal
IK1201012 SPN 731 FMI 16 Knock Detected: Cylinder Acceleration above Normal
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BAHAMAS, BOLIVIA, BELIZE, CANADA, CHILE, TAIWAN,
COLOMBIA, COSTA RICA, DOMINICAN REPUBLIC,
ECUADOR, EL SALVADOR, TRINIDAD AND TOBAGO,
UNITED STATES, URUGUAY, VENEZUELA, ARUBA,
NICARAGUA, PERU, PUERTO RICO, Curaçao, GUAM,
GUATEMALA, GUYANA, HAITI, HONDURAS, JAMAICA,
KOREA, SOUTH KOREA, PANAMA
Availability: ISIS
Revision: 10
Major
ENGINES
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Current
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IK1201012
ID:
Created:
11/11/2013
Last
Modified:
10/28/2015
Author:
Jay
Weston
15413
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Title : SPN 731 FMI 16 Knock Detected: Cylinder Acceleration above Normal
Applies To : All 2010 MF 11/13, 2013+ N13 Big Bore Engines with the latest 3.15 Software Level (Calibration ID
xxxxARxx or higher)
CHANGE LOG
10/28/2015 - Fixed broken hyperlink (feedback), updated SRT section, replaced TSI links with direct link to iKNow articles.
09/16/2015 - Updated related fault codes references.
01/02/2015 - Fixed link in Step 8, IK1200646
11/19/2014 - Update Repair Procedure and Diagnostics. Remove FMI 18 now located at IK1201209
DESCRIPTION
This document will guide the user through diagnostics and repair procedures for SPN 731 FMI 16. It is important to thoroughly review the document
as serious engine damage can occur if warnings are not heeded. As such, safeguards had been included in certain calibrations to prevent engine
restart after the codes have been set.
An interview with the driver of the unit at the time of the fault
code setting is critical with assisting in the troubleshooting process.
Common questions:
• Was the vehicle in motion
• Was the unit in PTO
• Has this truck been down for major repairs recently
SYMPTOMS
Diagnostic Trouble Codes:
DTC/Light
Description
SPN 731 FMI 16 Knock Detected: Cylinder Acceleration Above Normal
Customer Observations or Concerns:
Red Stop Lamp with audible alarm
- Engine self shut-down
- Inability to restart engine
- Unrequested engine acceleration
Fault Code Entry Conditions:
731-16 Knock Detected: Cylinder Acceleration Above Normal
Condition /
Setting Criteria
Enable Conditions / Values
Description
The use of the CKP
An increase in
(Crankshaft position) crankshaft velocity
sensor to monitor without an increase in
command
•
•
•
•
Vehicle Speed = 0
Engine speed > 500 RPM
Accelerator pedal = 0%
Manual Transmission Clutch Pedal = Not Depressed
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11/3/2015
IK1201012 SPN 731 FMI 16 Knock Detected: Cylinder Acceleration above Normal
power cylinder
velocity
Page 2 of 7
• Coolant temperature is between -9 deg. C and 120 deg. C
(15 deg. F and 248 deg. F)
• Monitor enabled During Operating modes (Listed Below)
Normal Operation
• Stationary Regeneration
• High Altitude
• Medium Altitude
• Sea Level
• PTO
• No Active Faults with (Listed Below)
◦ Coolant Temperature Sensor Faults
◦ Clutch Switch Faults
◦ Vehicle Speed Sensor Faults
Related Fault Codes:
SPN
190
190
190
1322
132x
731
FMI
0
11
15
31
31
18
Description
Engine Overspeed Most Sever Level
Engine Overspeed Vehicle Event
Engine Overspeed Detected
Misfire - Multiple Cylinders
Misfire Cylinder X(16)
Knock Detected: Unexpected Fueling Without Demand
Diagnostic Path
Reference IKnow IK1201048
Continue with 731 diagnostics
Continue with 731 diagnostics
Reference Diagnostic Manual
Reference Diagnostic Manual
Reference IK1201209
SPECIAL TOOLS / SOFTWARE
Tool Description
Electronic Service Tool
Flywheel Timing Tool
Tool Number
Fabricated Tool
Comments
ServiceMaxx, EZ Tech, ect
If necessary
Instructions
Below
Flywheel Timing Tool Assembly:
Parts
-M6 x 25mm Bolt (15mm-30mm will work)
2" x 1" Clear Hard Plastic
-1/4" drill bit
-Digital Caliper or equivalent
Fine Tip Marker
Instructions
1) Drill a 1/4" hole, centered at one end of the clear plastic
2) Thread the M6 bolt through the hole
3) Measure 1.300 inches from the edge of the bolt using digital caliper and mark a line on the plastic
4) With the boltfree end facing away, mark the right edge of the plastic with a marker, as shown in Figure 1
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IK1201012 SPN 731 FMI 16 Knock Detected: Cylinder Acceleration above Normal
Page 3 of 7
Figure 1: Flywheel Timing Tool
SERVICE PARTS INFORMATION
Kit Description
Part Number
Quantity
Required
Notes
Cartridge should be used unless guided to replace
complete turbo by IKnow IK1200909
Cartridge should be used from compete unless guided to
replace complete turbo by IKnow IK1200909
Kit, HP Turbo Cartridge
2511792C91
1
Turbocharger Ass Hi Press 11L
3005698C9x
1
Tube Assembly, Oil Supply
3018397C9x
1
Updated line
Kit, Turbo Supply Line Fitting
2512772C9x
1
Kit is needed if not equipped with new line prior to repair.
Prostar 122 Heater Hose Routing 2513145C91
1
Kit is needed if not equipped with new line prior to repair.
ORing, #118 0.862"x0.965"
Kit, Flywheel 15.5 inch
1
1
If necessary
For Manual Transmission
1820907C2
7090698C91
DIAGNOSTIC STEPS
Diagnostics for 73116 Knock Detected: Cylinder Acceleration above Normal
Step Action
Inspect for oil in the Intake
1
Decision
Yes. Proceed to Step 2
Remove boost air piping at the outlet of the turbo and outlet of the CAC. Inspect piping for large
amounts of oil.
No. Proceed to Step 3
Is there a significant amount of oil present in the boost air piping?
Step Action
Peform the following repairs:
2
Decision
Go to Step 8
• Replace Turbo Center Section (Refer to IK1201242 for procedure).
• Clean CAC (Refer to IK1201179)
• Verify that oil has not reached the DOC. If it has the DOC and DPF need to be removed to
drain. (Refer to Open TSI's and Service Manual for procedure).
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IK1201012 SPN 731 FMI 16 Knock Detected: Cylinder Acceleration above Normal
Page 4 of 7
• iApprove will need to be started and pictures are required for the inlet/outlet of the DOC
(Diesel Oxidation Catalist) and DPF (Diesel Particulate Filter). Location of the iApprove on
the Vehicle Information Page, iApprove Tab
Note: Verify the engine will bar over by hand before starting when repairs are complete.
Note: None of the above repairs require preapproval.
Step Action
3
Yes. Continue to Step 6.
Does the engine have a misfire or run rough?
No. Proceed to Step 4.
Step Action
Review repair history
4
Decision
Verify concern
Interview driver and look up past repair history per Service Portal home page/warranty tab.
Decision
Yes. Proceed to Step 8.
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TSB/Document ID: IK1201012
Replacement Service Bulletin Number:
MFR Communication Date: 2015-10-28
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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