2008 Volvo VT 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
- Base Straight Truck - Long Conventional
- Base Tractor Truck - Long Conventional
Engines covered
- 16.1L 984Cu. In. l6 DIESEL Turbocharged
- 14.9L 912Cu. In. l6 DIESEL Turbocharged
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
Volvo Trucks North America (Volvo) is recalling certain model year 2007-2014 VAH, VHD, VNL, VNM, and VT models. The affected vehicles were built without a redundant clutch disengagement switch. Witho
Without a signal to disengage the clutch when the brakes are applied, the distance required to stop
Volvo Trucks will notify owners and dealers will inspect and repair the vehicles if necessary. The
VOLVO TRUCKS IS RECALLING 127,764 MY 2001-2008 VHD, VNL, VNM, AND MY 2005-2008 VT TRUCKS. A SEAL MAY FAIL ALLOWING WATER AND CONTAMINANTS TO SEEP INTO THE WINDSHIELD WIPER MOTOR.
IF THIS HAPPENS A SHORT CIRCUIT MAY OCCUR, WHICH OVER TIME COULD POSSIBLY LEAD TO A VEHICLE FIRE.
VOLVO WILL REPLACE THE WIPER MOTOR FREE OF CHARGE. SINCE THIS RECALL INVOLVES A LARGE NUMBER OF VE
VOLVO TRUCKS IS RECALLING CERTAIN MODEL YEAR 2007 AND 2009 VHD, MODEL YEAR 2006 THROUGH 2010 VN, AND MODEL YEAR 2007 THROUGH 2009 VT TRUCKS MANUFACTURED FROM NOVEMBER 7, 2005, THROUGH OCTOBER 30, 2009
CORROSION OF THE VALVE CAN CAUSE IT TO MALFUNCTION, THEREBY ADVERSELY AFFECTING BRAKING PERFORMANCE
DEALERS WILL INSPECT THE INVERSION VALVE AND REPLACE AS REQUIRED. THIS SERVICE WILL BE PERFORMED FR
VOLVO IS RECALLING CERTAIN MODEL YEAR 2008-2011 VHD, VNL, VNM, AS WELL AS 2008-2010 VT VEHICLES FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF PART 567, "CERTIFICATION." THE TIRE DESCRIPTION MAY BE IN
THE MISINFORMATION ON THESE LABELS COULD LEAD TO A VEHICLE OVERLOADING THAT CAN INCREASE RISK OF A C
DEALERS WILL INSPECT AND REPLACE THE LABELS FREE OF CHARGE. THE SAFETY RECALL BEGAN ON FEBRUARY 25,
CBR - Z Spring Bracket Wear. Volvo Chassis
CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.
CBR: On Volvo chassis with an I-Shift and Mack chassis with an mDRIVE transmission, there have been reports of complete shift assemblies and TECUs being replaced due to technicians being unable to pinpoint the source of the air leak.
CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
CBR - Active "Set Park Brake" Message On Drivers Information Display (DID)
Volvo Chassis - ( AMT, I-Shift ) - Transmission Grinding When Downshifting ; Range Synchronizer (Synchro) Timing Procedure - US07 And Newer
TSB-Charge Air Cooler t-clamp install.
Engine Control Module (EMS) Software (MSW) Information August 2022; Improvement List (Change Log) - US21+OBD22 (13L VGT, TC) And US17+OBD22 (11L) Emissions
Showing the 8 most recent of 103 technical service bulletins on file with NHTSA.
