2020 Mack Granite (gu) TSBs
103 Technical Service Bulletins across 12 categories
Categories
Engine
26 bulletinsCBR: Turbo Compound (TC) Hot Side Noise, Diagnostic Information.
CBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil.
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It is possible that the source of the fuel is the rear fuel galley plug in the cylinder head.
CBR: For vehicles equipped with an 11L engine, the plastic saddle bracket holding the a/c line on the left side of the...
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engine may move excessively and rub the area where it secures the line.
Barksdale Leveling Valve, Leak Test
CBR: Programming Failure - Chassis With Cummins Engine And An Allison Transmission
CBR: Mack DEF Dosing Valve Diagnostic Trouble Codes (DTC) P202D00, P208E00, P103B00 - US10+OBD13 And Newer Emissions
CBR: Model Year 2017 to Current - Fuel Filter Change ( Primary And Secondary ) For The EM - USA17 Emission Engines
CBR: Mack Chassis - Allison Reduced Engine Load At A Stop (RELS) Diagnostic Trouble Code P071a Or P07ce - GR,TE,LR...
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Models - Non-Split/Drop Box PTO
Electronic Pressure Releif Valve (EPRV) Delete & Fuel Rail Pressure Sensor
Barksdale Height Control Valve Troubleshooting Guide
Mack Chassis - Technical Service Bulletin M-728-005, Leveling Valve, Leak Test, Air Leaks From The Leveling Valve After...
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The Vehicle Is Parked (Shut Off)
Engine Oil Analysis Specifications - US10 And Newer Emissions
Variable Geometry Turbocharger ( VGT ) Function Test ( 2551-08-03-02 ), OBD13 Model Year ( MY ) 2014 And Newer
Mack Chassis - Granite Models (GU, GR) - Revised Fan Ring Design; Engine Cooling Fan Ring Cracked At Welds - Model Years...
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2016 To 2020
13 Liter Engines ONLY - Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In Between...
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The Coolant Pump Housing And Oil Cooler Housing - Model Years 2019 And 2020
(Back Office Only) Vehicles Equipped With A Turbo Compound Engine - Report Of Frequent Air Compressor Cycling.
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Secondary Air System Air Pressure Decreases Slowly When Engine Is At Low Idle - US17+OBD16 And Newer Emissions, Model Year 2018 And Newer
Trucks Equipped With A Cummins Engine - Engine Preheat Icon Does Not Illuminate In The Instrument Cluster (IC) During...
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Engine Pre-heat (Intake Air Heater) Operation - Vehicles With 2018 Instrument Cluster Update, Model Year 2018 And Newer
Automated Manual Transmission( AMT ) ( I-Shift, mDRIVE ) Equipped Chassis, OBD13 And Newer - Light Turbo Surge ( Chuff )...
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During Skip Shifting
Diagnostic Trouble Codes (DTC) For The Engine Pre-Heat Relay: Supplementary Instructions
Diesel Exhaust Fluid (DEF) Crystallisation, Dosing valve, Clean
Diagnostic Trouble Codes (DTC) For The Engine Pre-Heat Relay: Supplementary Instructions - US10+OBD13 And Newer...
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Emissions, Model Year 2014 And Newer
GR/GU ABS valve bracket installed incorrectly
IGNITION CYLINDER REPLACEMENT-CUMMINS ENGINE
Engine Brake - Diagnostic Trouble Code (DTC) P1021-11 Volvo Compression Brake (VCB) Control Circuit Short To Ground -...
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US17+OBD16 Through US17+OBD19 Emissions, Model Years 2018 To 2020
Leveling Valve, Leak Test
Mack Chassis - Granite Models (GU, GR) - Revised Fan Ring Design; Engine Cooling Fan Ring Cracked At Welds - Model Years...
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2016 To 2020
Fuel System
18 bulletinsCBR: Vehicle Speed Factor (K-Factor) Programming - Speed Factor Value Incorrect When Calculated In Premium Tech Tool...
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(PTT); Speedometer Reading Incorrectly Following A Change To Vehicle Speed Factor - US17+OBD16 And Newer Emissions, Common Model Year 2018.
Owner Notification Letter, Extended Warranty Coverage U114.
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The EGR Cooler is the component provided coverage under this warranty extension.
Mack DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions
Mack DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions
Diagnostic Trouble Code ( DTC ) P26E8 Intermittently Lighting The Malfunction Indicator Lamp ( MIL ); Possible Derate...
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Warning - US10+OBD13 And Newer Emissions, Model Year 2014 And Newer
Dye Test Procedure; Fuel System Leak Check - Common Rail Fuel System - US17+OBD16 And Newer Emissions, Common Model Year...
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2018 And Newer
Diagnostic Trouble Codes (DTC) P24F600 Or P24F700 - US14+OBD15 Emissions And Newer, Model Year 2016 And Newer
Dye Test Procedure; Fuel System Leak Check - Common Rail Fuel System - US17+OBD16 And Newer Emissions, Common Model Year...
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2018 And Newer
Volvo Chassis - Diagnostic Trouble Code (DTC) SA 0 FMI 0 or SPN 0 FMI 0 Present On Fault Code Readout - US10 And Newer...
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Emissions, Model Year 2011 And Newer
Mack Chassis - Where To Find The Body Builder Portal - Body Builder Manual ( BBM ) Information - US04 And Newer...
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Emissions, Model Year 2008 And Newer
Premium Tech Tool (PTT) Error Code 43: Service Regeneration Fails To Start; Service Regen Does Not Complete With Error...
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43 Displayed - US10+OBD13 And Newer Emissions, Common Model Year 2014 And Newer
Diesel Fuel Information - Acceptable Biodiesel, Fuel Blend For Summer And Winter - US07 And Newer Emissions, Model Year...
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2008 And Newer
Air In The Fuel System Tests, Common Rail Fuel System - US17+OBD16 and Newer Emissions
Diagnostic Trouble Code (DTC) P2042-01: Diagnostic Instructions - US17+OBD16 Emissions And Newer
Vehicles Equipped With A One-Box Emissions Aftertreatment System ( EATS ) - Diagnostic Trouble Codes ( DTC ) P2463 and P2453.
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US17+OBD16 (GHG17) And Newer Emissions, Common Model Year 2018 And Newer
Common Rail Fuel System Faults - Diagnostic Trouble Codes (DTC) P0094, P228F, P016F, P0087,P00C6, P0257, P2A17, P2A1F,...
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P008A; Repair Information - US17+OBD16, US17+OBD18, and US17+OBD19 Emissions, Model Years 2018 To 2020
Diagnostic Trouble Code (DTC) P20EE - SCR NOx Catalyst Efficiency Below Threshold (Bank 1) - US17+OBD2019 Emissions,...
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Model Year 2020 ONLY
Mack Chassis - Oil Diluted With Fuel; Fuel In Oil, Diagnostic Information - All Emissions Prior To US17+OBD16 (Common...
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Rail Fuel System), Model Year 2017 And Older
Electrical
16 bulletinsAftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
CBR: Diagnostic Trouble Code (DTC) P225C00 : NOx1 Sensor Stuck High - US17+OBD2019 And Newer Emissions
Mack MMD Alternator Pulley
DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
Aftertreatment Control Module ( ACM ) Diagnostic Trouble Codes ( DTC ) U0001-88 and U0010-88 Lighting The Malfunction...
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Indicator Lamp ( MIL ); Possible Derate Warning US10 And Newer Chassis
DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
EPRV Delete & Fuel Rail Pressure Sensor Update
Exhaust Gas Temperature Sensor Circuit Range/Performance
Mack Chassis - Particulate Matter (PM) Sensor Diagnostic Trouble Codes (DTC) Illuminating The Malfunction Indicator Lamp...
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(MIL); Tech Tip TT-014-2016 - US14+OBD16, US17+OBD16 And Newer Emissions, Common Model Year 2017 And Newer - To Be Used For EVERY
Aftertreatment Control Module (ACM) Offline/Not Visible/Missing From Control Unit Information in Premium Tech Tool (PTT)...
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- US10+OBD13 And Newer Emissions
DTC P0194-00 and/or P016E-00, Fuel Rail Pressure Sensor (RPS) and wiring harness, Replacement
EXPIRED - Refer To K47547856 - Debranded Solutions - Mack Chassis - Particulate Matter (PM) Sensor Diagnostic Trouble...
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Codes (DTC) Illuminating The Malfunction Indicator Lamp (MIL); Tech Tip TT-014-2016 - US14+OBD16, US17+OBD16 And Newer Emissions, Common Model Year 2017 And Newer - To Be Used For EVERY Visit
Front Accessory Drive Noise, Alternator Belt Wear, Alternator Belt Tensioner Failure - Model Year 2017 And Newer
Mack Chassis - Particulate Matter (PM) Sensor Diagnostic Trouble Codes (DTC) Illuminating The Malfunction Indicator Lamp...
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(MIL); Tech Tip TT-014-2016 - US14+OBD16, US17+OBD16 And Newer Emissions, Common Model Year 2017 And Newer - To Be Used For EVERY Visit
Mack Chassis - Particulate Matter (PM) Sensor Diagnostic Trouble Codes (DTC) Illuminating The Malfunction Indicator Lamp...
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(MIL); Tech Tip TT-014-2016 - US14+OBD16, US17+OBD16 And Newer Emissions, Common Model Year 2017 And Newer - To Be Used For EVERY Visit
Exhaust Gas Recirculation (EGR) System - Fault Codes SPN 412 FMI 0,2,5; Diagnostic Trouble Codes (DTC) P040A, P040B,...
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P1121 - Temperature Sensor Inspection
Other
15 bulletinsCBR -Telematics Gateway (TGW) Connect Ability Issues
CBR: TGW Will Not Connect After SIM Card Replacement
CBR: Frame Or Cab Lean
Mack Trucks now offer an improved HD Inter-Axle Through Shaft for the CRD 125, 150, 180, and 200 family carriers.
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The new HD shaft went into production on January 23rd, 2023 for 2.54 - 3.50 axle ratios and April 1st, 2023 for 3.56 - 3.98 ratios. The new HD through shaft is an upgrade over the current standard shaft and can now be used as a replacement part instead of the standard shaft. The new HD shaft has a new design to increase strength, longevity and life over the standard shaft.
Air Restriction Indicator
CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19
Vibration Diagnostics
Frame Flange Relief Cut-out Templates with 105 millimeter Frame Flanges
New Vehicle Safety Certification Requirements for Vehicles, U.S.
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and Canada
CBR: Mack Granite - Diagnostic Trouble Code (DTC) P208464
2007 document reformatted to be published as a TSB in Impact.
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Lateral cab movement bracket.
Mack Chassis - Equipped With Bendix Fusion, With Or Without Lane Departure Warning ( LDWS ) - Diagnostic Trouble Code (...
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DTC ) SPN 70 FMI 9, Bendix Code 64 With Possible "Lane Departure Warning Malfunction" Message - US17 And Newer
Mack Chassis - FSB 563-008 Plugs, Pressure Protection Manifold - New Brass Plugs For Noregon Pressure Protection...
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Manifold (PPM)
Diagnostic Trouble Codes (DTC) P20EE And P103C, Diagnostic Procedure; REPLACES GUIDED DIAGNOSTICS IN PREMIUM TECH TOOL (...
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PTT ) - US17+OBD16 And Newer Chassis ONLY
Plugs, Pressure Protection Manifold
Transmission
11 bulletinsCBR: Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F, mDrive) Missing X1 Value In VDA And...
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Default Settings Guidelines, ParameterP1AOB; Fault Code P1052-54, Error 40,Or Error 18 Encountered During Clutch Or Tran.
CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
Parts Sales and Marketing Bulletin: Mack Trucks is excited to announce an additional year warranty program on REMACK...
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AMT mDRIVE Complete Transmissions. This extended warranty of 3 years or 350,000 miles on the transmission will be applicable when dealer installed, required parts are installed and is registered via eService.
CBR: Automated Manual Transmission ( AMT ) -Transmission Electronic Control Unit ( TECU ) MID130 PSID 29 FMI 7 /P10AE81...
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Fault Codes Being Generated
CBR: Automated Manual Transmission (AMT) Transmission Kickdown Mode
Automated Manual Transmission (AMT) (Spigot Bearing) Input Shaft Repair Kit And Shim Kit, Part Number Information,...
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Reference Guide - US07 And Newer Emissions, Model Year 2008 And Newer
Mack Chassis - Equipped With An Automated Manual Transmission (mDrive, AMT) AMT-C, AMT-D Or AMT-F - Transmission Oil...
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Specifications - Model Years 2010 To 2020
Automated Manual Transmission Gearbox Will Not Shift To High Range After Gearbox Repair; MID 130 PSID 24 FMI 1, P1072-92...
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Unintentional Disengagement Of High Range - US07 And Newer Emissions, Model Year 2008 And Newer
Transmission Oil Cooler Hose, Replacement
Mack Chassis - Equipped With An Allison Transmission: Enable 6th Speed - All Emissions, All Model Years
Automated Manual Transmission (AMT) Faults - Diagnostic Trouble Codes (DTC) P1052-18 Or MID 130 PID 33 FMI 5...
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Intermittent Fault In Cold Weather - US07 And Newer Emissions, Model Year 2008 And Newer
Body & Paint
5 bulletinsMack Chassis - Granite 8 Series (GU, GU8, GR, M059, M753, M755) - Hood Guide Backing Plate - Updated Part Information...
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And Installation Procedure;
Mack Chassis - Model GR/GU - Hood Warpage
Mack Chassis - Model GR/GU - Hood Warpage
Mack Chassis - Model GR/GU - Hood Warpage
Mack Chassis - SNM16 - 015 Updated Wiper Mechanism for One Piece Windshield; Windshield Wipers Leaving Streaks Or Not...
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Clearing Center Of Windshield
Pre-Delivery & Maintenance
3 bulletinsService Campaign - MP8 Stainless Oil Pan.
Service Literature Published and Released in May, 2023
Stock Vehicle Storage and Maintenance
Infotainment
3 bulletinsCBR: Vehicle Overspeed Warning Comes Active At A Lower Speed Than Expected; Vehicle Overspeed Warning In Driver...
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Information Display (DID) - Model Year 2018 And Newer With New Style Instrument Cluster
Noise On The AM Radio Band; Thumping, Ticking, Fluttering Sound On AM Radio Band - Model Year 2018 And Newer
Volvo Chassis - Certain Volvo Trucks Built After January 11, 2016 May Experience an Issue with the Instrument Cluster...
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Display
Brakes
2 bulletinsCBR - Active "Set Park Brake" Message On Drivers Information Display (DID).
Mack Chassis - Drive Axle Brake Chamber Rubbing Frame Or Brake Drum - Vehicles Built Between 7 July 2014 And 23 August...
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2019
Lighting
2 bulletinsMack Chassis - No Gauge Cluster Backlight
Mack Chassis - Adding Snow Plow Lights - Parameter And Variant Changes
Suspension
1 bulletinCBR - Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust - Chassis Built 2016w01 And Newer.
Software & Calibration
1 bulletinPI0889 DIFFERENTIAL LOCK ENGAGEMENT STATUS ALARM UPDATE