2020 Western Star 4700 technical service bulletins
163 technical service bulletins and manufacturer communications cover the 2020 Western Star 4700, including one warranty extension.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair...
- Parts Bulletin for Fluorosilicone Fuel Tank Cap Seals
- Technical Service Bulletin for TufTrac M12 Bolts
- CX Advocate for ConMet Oil Pan Insert Additional Issues
- Parts Bulletin for Tie Rod Assembly Part Breakdown
- Service Solution for DT12 Oil Plug Ports
- CX Advocate for NOx conversion low faults
- CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test...
- Service Solution for Power Steering Reservoir Fill Cap Venting
- Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
- CX Advocate for ConMet Oil Pan Insert Additional Failures
- CX Advocate for NOx conversion low faults
- CX Advocate communication for NOx conversion low faults
- CX Advocate communication for clutch bolts
- Technical Service Bulletin for New Final Drive Over Heat Diagnostic
- Service Solution for Thread Spring Pin Suspension Alignment & Installation
- Customer letter regarding variable speed water pump.
- Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller
- Revised Emissions Recall: Cummins DEF Sensor Shortage
- Important Campaign Information letter for FL974
- Emissions Recall: Cummins DEF Sensor Shortage
- Updated Western Star Service Bulletin for HVAC Actuator Replacement
- Western Star Service Bulletin for HVAC Actuator Replacement
- Western Star Service Bulletin for DEF Connector Reinforcement Caps
- Revised Western Star Service Bulletin for Drive Line Vibration
- Revised Western Star Service Bulletin for Pana-Pacific 540 Radio Controls Not Operating Normally
- HVAC Actuator Wiring Harness
- SF626 Western Star Window Replacement Inspection Notification
- Customer Advisory Letter for HVAC Actuator Wiring Harness
- Western Star Service Bulletin for Key Fob ID Retention
- Service Solution for DT12 Harness Chaffing
- Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times (SDTs) shown
- Warranty Information Letter announcing DTNA is adjusting the Standard Repair Times (SRTs) shown
- Tech Talk discussion on dash lights not working
- Tech Talk discussion on dash lights not working.
- Warranty Policy Letter for battery tags
- Detroit Field Service Campaign for DT12 Gear Grind During Downshift Software Update.
- Updated Western Star Parts Technical Bulletin for Universal Design Floor Mats
- Revised Technical Service Letter for Cold Weather Faults on GHG17/21 DD13 with MCM Software Version 14....
- Starting on November 23, 2020, DiagnosticLink 8.13 (Build 4527) was made available
- Warranty Information Letter for Body Builder/Truck Equipment Manufacturer Demonstration Program.
- Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes
- Superseding Letter to an Important Campaign Information Letter to announce a reimbursement available to...
- Western Star Parts Technical Bulletin for Universal Design Floor Mats
- Revised Warranty Information Letter for OWL and Warranty Manual Improvement: Sublets and Travel Time/Distance
- Warranty Information Letter for Detroit Resources: Exploded View DD Platform and DT12 Posters
- Tech Talk discussion on 2020 Western Star, TRW Power Steering Whine.
- Customer Advisory Letter for Threaded Pin and Bushing
- Western Star Service Bulletin for Access to Front Brake Zerk Fittings
- Western Star Service Bulletin for Axle Flange Gasket Replaced with O-Ring
- Revised Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing
- Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing
- Western Star Service Bulletin for Powernet Troubleshooting Guide
- Revised Technical Service Letter for Detroit DT12 TCM GHG17 Only; Bootloader Update
- Technical Service Letter for Cold Weather Faults on GHG17/21 DD13 with MCM Software Version 14. Due to...
- Western Star Service Bulletin for Ordering Options for Aftermarket Power Distribution Modules (PDMs). For...
- Revised Service Solution for 20K Detroit Axle King Pin Lube Access
- Portland Truck Plant Paint Changes
- DDC Technical Service Letter for GHG17 DD Platform Heavy Duty Oil Pan Drain Plug Inserts
- Tech Talk discussion on SS 1034711 HADLEY MIRROR
- Detroit Diesel Special Publication informing about Heavy Duty Friction Style Belt Tensioner Kit. This...
- Revised Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change
- Tech Talk discussion about power steering fluid.
- Tech Talk discussion on repair verification for codes like 'low air flow' when a trailer is not available.
- Customer Service Announcement for Release of DiagnosticLink 8.12 Service Pack 2. On Thursday, September 3,...
- Meritor Transfer Case Updates
- Service Solution for 20K Detroit Axle King Pin Lube Access
- Removable Front Tow Hook Changes
- Revised letter is to announce a reimbursement available to dealers for travel to a customer's location to...
- Warranty Information Letter informing that to ensure that DTNA policies and service network practices...
- Warranty Information Letter for OWL and Warranty Manual Improvement: Sublets and Travel Time/Distance
- Important Campaign Information letter announcing Dealer Travel for Campaign Performance
- Western Star Bulletin for Non-Airliner Rear Suspension Crossmember Fastener Change
- Customer Service Announcement informing that Service Pack (SP) 1 for DiagnosticLinkÃÂÃÂÃÂî 8.12...
- OEM and distributor announcement for DiagnosticLink 8.12 (Build 4527) was made available
- Technical Service Letter for EPA10, GHG14, GHG17 Diesel Particulate Filter (DPF) Compatibility
- Customer Service Announcement for DiagnosticLink Software Update Reminder
- Service Bulletin for Guidelines for Cleaning and Disinfecting Cab Surfaces
- Revised Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change
- OEM and distributor announcement for Running Change to ACM Software for MY2020
- Warranty Information Letter for a Warranty Service Replacement Engine Program Clarification
- Customer Service Announcement for Release of DiagnosticLink 8.12. On Wednesday, June 10, 2020,...
- Customer Advisory Letter for ABS ECU Software Update
- Service Bulletin for Window Regulator Retrofit
- Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change
- Service Solution for Hadley Upper Mirror Glass Vibration
- Revision for Service Bulletin for Western Star 4700/5700 Pana-Pacific 540 Radio Controls Not Operating...
- Warranty Information Letter for Warranty Training Online
- Warranty Policy Letter for Handling for Authorized Service Location Part Transfers
- Warranty Policy Letter for Chassis Progressive Damage Policy Change
- Warranty Policy Letter for Handling Change: Over the Counter Aftermarket Parts Replacement Program
- Warranty Information Letter for Warranty Long Block Program Change
- Service Bulletin for Lengthening the Backup Light Harness
- Customer Advisory Letter for GWR Label Correction
- Customer Advisory Letter for 6TS RP1226 Dash Harness Circuit Correction
- Revision for Service Bulletin for Western Star 5700 Pana-Pacific 540 Radio Controls Not Operating Normally
- Customer Service Announcement saying that Service Pack (SP) 3 for DiagnosticLink® 8.11 Standard and...
- Warranty Policy Letter explaining the Warranty Department is aligning with the frame rail repair policy,...
- Open recall and Field service Campaigns report send out to Dealers, General Managers, Service managers and...
- Customer Service Announcement saying that Service Pack (SP) 2 for Diagnostic Link 8.11 Standard and...
- Technical Service Letter for DD Platform Heavy Duty, Metal in the Oil and Oil Filter
- Open recall and Field service Campaigns report send out to Dealers, General Managers, Service managers and...
- Service Bulletin for Midship Bearing Replacement for built vehicles with driveshafts SPL140, SPL170 or...
- Service Solution on Western Star speedometers
- Revision to a Warranty Policy Letter announcing the One Stop Supplier Extended Program Launch
- Service Bulletin for Guidelines for Repairing or Replacing an Electrical Harness
- Customer Service Announcement for a policy change regarding Detroit Service Information Bulletins (SIBs)...
- Customer Service Announcement reminding service locations to update their DiagnosticLink software
- Tractor Reflective Devices
- Service Solution for Western Star Velvac Door Mirror Seal Curling
- Warranty Policy Letter announcing the One Stop Supplier Extended Program Launch
- Service Solution for WST 4700 In Cab Floor Raceway Cover Corrosion
- Service Solution for WST for some Western Star 4700 trucks equipped with PTO where when the driver's door...
- Service Bulletin on A/C System Receiver-Drier Replacement Guidelines.
- Warranty Information Letter announcing Detroit NOx Sensor Circuit Improvements for GHG17 After Treatment...
- Technical Service Letter for GHG17 Heavy Duty Engine Platform 1-BOX Aftertreatment System (ATS) Wire...
- Service Bulletin for Midship Bearing Replacement for built vehicles with driveshafts SPL140, SPL170 or...
- Service Bulletin for Window Regulator Retrofit.
- Customer Advisory Letter for Airliner welded axle seats
- Service Solution for prematurely failing coolers on WST Models equipped with Allison Transmissions and...
- Service Solution to address WST Cab drone / vibration / tapping Under acceleration for vehicles w/Eaton...
- Service Bulletin explaining Western Star's courtesy engineering policy.
- Training Solution provides information related to the new Microgateway (MGW) found on Western Star 4700...
- Customer Advisory Letter for Allison flex plate mounting bolts
- Service Bulletin for Hendrickson HaulMaax Rear Suspension Transverse Torque Rod Tower Bracket Replacement.
- Service Bulletin for midship bearing replacement
- Warranty Policy letter announcing service locations have 90 calendar days from delivery to open a repair...
- Service Bulletin for paint finish standards
- Service Solution on failing RX modules in Western Star vehicles.
- Warranty policy letter
- WARRANTY INFORMATION LETTER for coverage validation
- Service bulletin updating the Important Information section and adding instructions for proper visual...
- Service Solution for WABCO HP air dryer turbo cut-off valve replacement.
- Customer Advisory Letter for WABCO HP air dryer turbo cut-off valve replacement.
- Technical Service Letter Revision on heavy duty coolant oil module and oil filter change
- Technical Service Letter communicating that information on DD Heavy Duty Platform Belt and Belt Tensioner...
- Customer Service Announcement that eParts is being retired and that PartsPro should be used instead for...
- Warranty Policy Letter- To assist customers and the service network regarding the Aftermarket Parts...
- Tool Letter for DAVCO Shop Pro FXP 95-230V compatible for Chile and Italy Electrical Systems
- Tool Letter for DAVCO Shop Pro FXP 95-230V compatible for Australia Electrical Systems.
- Parts and Service Committee meeting minutes
- Service Solution to fix AC cooling performance due to improper HVAC function.
- Service Bulletin for Dealer Product Report
- Service Bulletin for Equiflo Fuel System Breather Tube Inspection
- Service Bulletin for Powernet Distribution Box Functional Changes
- Warranty Policy Change for Delivery-Related Changes: Electronic Proof of Delivery and Loose Component...
- Tool Letter for ICC5 Programming Cable
- Customer Service Announcement Letter Revision for Dealers/Distributors Accessing DDEC Backdoor Passwords
- Customer Advisory Letter for Steering Column Pinch Bolt Inspection
- Allison FuelSense 2.0
- Electronic Stability Control Requirement for US and Canadian Tractors
- Training Solution for Western Star Front Brake Squeal
- Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...
- Training Solutions for Fuel Leak Found at High Pressure Fuel Pump Weep Hole for Heavy Duty DD Engines
- Paint Peeling, Hood.
- Western Star 4700 non removable bug screen with additional coverage to the bumper
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