2021 Western Star 4700 technical service bulletins
108 technical service bulletins and manufacturer communications cover the 2021 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
- CX Advocate for discolored coolant surge tanks (24CSA-20)
- Technical Service Bulletin for TufTrac M12 Bolts
- CX Advocate for ConMet Oil Pan Insert Additional Issues
- Revised Customer Service Annoucement for No Trouble Found Heavy Duty Engine Product (HDEP) Oil Separator Leaks
- Parts Bulletin for Tie Rod Assembly Part Breakdown
- CX Advocate for NOx conversion low faults
- Service Solution for Power Steering Reservoir Fill Cap Venting
- Customer Service Annoucement for Heavy-Duty Engine Product (HDEP) Oil Separator Leaks
- Customer Service Annoucement for Discolored Coolant Surge Tank on Heavy Duty Engine Product (HDEP)
- 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
- HVAC Actuator Wiring Harness
- SF626 Western Star Window Replacement Inspection Notification
- ConMet Front Hub to Rotor Fasteners
- Customer Advisory Letter for HVAC Actuator Wiring Harness
- Western Star Service Bulletin for Key Fob ID Retention
- Service Solution for DT12 Harness Chaffing
- Tech Talk discussion on a belt stretch tool sent to service techs.
- 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
- 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
- Tech Talk discussion on western star PTO.
- Warranty Information Letter for Detroit Resources: Exploded View DD Platform and DT12 Posters
- Tech Talk discussion on tool push.
- 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
- Tech Talk discussion on TRW GEAR-STRG,THP60,1200RAD,AB,ST. Steering exhibits shutter when turning left.
- 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
- Western Star Service Bulletin for Connecting the Chassis Harness Connector to the Cab Front Wall 104-Way...
- 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,...
- Important Campaign Information Letter informing that revised bulletins for Detroit Diesel campaigns...
- Meritor Transfer Case Updates
- Engine and engine cooling
- Service Solution for 20K Detroit Axle King Pin Lube Access
- Removable Front Tow Hook Changes
- Detroit Emissions Recall for GHG21 Detroit DD13 Model Year 2020 Software Reprogramming
- 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
- Customer Advisory Letter for Torque Validation of Steering Wheel Mounting Bracket Bolts
- 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
- 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,...
- Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change
- Service Solution for Hadley Upper Mirror Glass Vibration
- 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
- Customer Advisory Letter for GWR Label Correction
- Service Solution for Western Star Velvac Door Mirror Seal Curling
- 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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