1998 Volvo VN service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- VN64T Tractor Truck - Long Conventional
- VN42T Tractor Truck - Long Conventional
Engines covered
- 12.1L 740Cu. In. 6 DIESEL
- 10.5L 638Cu. In. 6 DIESEL
- 10.8L 10834CC 661Cu. In. l6 DIESEL Turbocharged
- 14.0L 14013CC 855Cu. In. l6 DIESEL Turbocharged
- 14.6L 14636CC 893Cu. In. l6 DIESEL Turbocharged
- 10.3L 629Cu. In. 6 DIESEL
- 12.7L 12686CC 774Cu. In. l6 DIESEL Turbo/Aftercooled
- 11.1L 11096CC 677Cu. In. l6 DIESEL Turbo/Aftercooled
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
VEHICLE DESCRIPTION: CLASS 8 HEAVY DUTY TRUCKS. THE ELECTRONIC MODULE THAT CONTROLS THE DAYTIME RUNNING LIGHTS (DRL) AND HEADLIGHTS CAN FAIL WITHOUT WARNING RESULTING IN THE LOSS OF THE DRL AND HEAD
IF THESE LIGHTS FAIL, A VISIBILITY PROBLEM WOULD OCCUR INCREASING THE RISK OF A VEHICLE CRASH.
DEALERS WILL REPLACE THE DRL CONTROL MODULE.
CBR: Volvo Chassis - Timing Gear Plate Repair. This solution provides supplementary information to be used when installing a Timing Gear Plate with Integrated Seal.
Volvo Chassis - Equipped with An Automated Manual Transmission (AMT, iShift) - SNV 19-002 - AMT Oil Filter Housing Corrosion
Volvo Chassis - Drag Link Inspection And Replacement Criteria
Programming Failure - Chassis With Cummins Engine And An Allison Transmission
DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
AMT Control Housing Bench Testing - False Failures
(Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP)
DTC U012100 - Lost Communication With Anti-Lock Brake System (ABS) Control Module, No Additional Information
Showing the 8 most recent of 61 technical service bulletins on file with NHTSA.
THE BRAKES ON THE HUB DID NOT FULLY RELEASE CAUSING A FIRE IN THE RIGHT FRONT HUB OF THE TANDEMS (OHIO TRAFFIC CRASH REPORT). *MJS
THE STEERING COLUMN FAILED CAUSING LOSS OF CONTROL AND RESULTING IN AN ACCIDENT IN WHICH THE DRIVER SUSTAINED INJURIES. NLM
THE STEERING COLUMN FAILED CAUSING LOSS OF CONTROL AND RESULTING IN AN ACCIDENT IN WHICH THE DRIVER SUSTAINED INJURIES. NLM
TL* THE CONTACT OWNS A 1998 VOLVO VN. THE CONTACT STATED THAT THE STEERING WHEEL WOULD SPORADICALLY BECOME EXTREMELY HARD TO TURN. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE STEERING DRAG LINK WAS
Showing the 4 most serious of 44 complaints filed with NHTSA.
