NHTSA ID Number: 10185304
Manufacturer Communication Number: FSB 284-070
TSB/Document Date: 2021-01-07
Summary
DTC P0194-00 and/or P016E-00, Fuel Rail Pressure Sensor (RPS) and wiring harness, Replacement
Field Service Bulletin
Trucks
Mack Trucks
Greensboro, NC USA
Date
Group
No.
Release
Page
12.2020
284
070
01
1(4)
DTC P0194-00 and/or P016E-00, Fuel Rail
Pressure Sensor (RPS) and Wiring Harness,
Replacement
LR, MRU, TE, AN, CHU, CXU, GR, GU, PI
FSB 284-070 DTC P0194-00 and/or P016E-00, Fuel
Rail Pressure Sensor (RPS) and wiring harness,
Replacement
(December 2020)
On certain MACK trucks built from November 14, 2016 to December 31, 2019, Common Rail
Engines may generate DTCs P0194-00 Fuel Rail Pressure Sensor (RPS) and/or P016E-00
Closed Loop Fuel Pressure at Control Limit, Pressure Too High, due to wear of the sensor
and wire harness terminals. Due to the nature of the fault it may be difficult or not possible to
duplicate the symptoms.
If this condition is found, follow the instructions outlined in this FSB.
Required Parts
11L VGT Engines
Part Description
Part No
Quantity
Pressure Sensor, F2 Common
Rail
23488937
1
Wiring Harness, Rear
23502057
1
Part Description
Part No
Quantity
Pressure Sensor, F2 Common
Rail
23488939
1
Wiring Harness, Rear
23502054
1
13L VGT & TC Engines
PV729-FSB284-070_M
USA153666450
Mack Trucks
Field Service Bulletin
Date
12.2020
Group
No.
Release
284
070
01
Repair Procedure
You must read and understand the precautions and guidelines in Service Information,
group 20, "General Safety Practices, Engines" before performing this procedure. If you are
not properly trained and certified in this procedure, ask your supervisor for training before
you perform it.
DANGER
Do not attempt to repair or service this vehicle without having sufficient training, the
correct service literature and the proper tools. Failure to follow this could make the vehicle
unsafe and lead to serious personal injury or death.
1 Confirm DTC P0194-00 and / or P016E-00 is present.
2 Remove Valve Cover as per Impact Operation 2115-03-02-02.
3 Remove and replace the Pressure Sensor and Wiring Harness, Rear as per Impact
Operations 2373-03-03-06 & 2861-03-03-03.
11L ENGINE
T2166576
Page
2(4)
Mack Trucks
Field Service Bulletin
Date
12.2020
Group
No.
Release
284
070
01
13L ENGINE
T2166577
11L and 13L ENGINE
T2166578
Page
3(4)
Mack Trucks
Field Service Bulletin
Date
12.2020
Group
No.
Release
284
070
01
Reimbursement
This repair may be eligible for reimbursement if a
product failure was experienced within time and mileage
limits of the applicable Warranty coverage.
Reimbursement is obtained via the normal claim
handling process.
UCHP
Reimbursement
Claim Type (used only when uploading from the Dealer
Bus. Sys.)
W
Labor Code
Pressure Sensor, Common Rail, Replacement, Valve Cover
removed
2373-03-03-06
0.2 hrs.
Wiring Harness, Injector, Replacement (Rear), Valve Cover
removed (Time Varies Per Model)
2861-03-03-03
Use Impact for Time
(0.3 - 0.4 hr.).
Valve Cover, Replacement
(Time Varies Per Model)
2115-03-02-02
Use Impact for Time
(0.9 - 1.9 hr.)
Causal Part
22720182
MACK Trucks North America reserves the right to make any changes in design or to make
additions to or upon its products without incurring any obligations to install the same on
vehicles previously built.
Page
4(4)
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TSB/Document ID: FSB 284-070
Replacement Service Bulletin Number:
MFR Communication Date: 2020-12-03
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: FUEL SYSTEM, DIESEL
MFR Component System:
MFR Component Subsystem:
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