2008 Volvo VNL 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
- 12.1L 740Cu. In. 6 DIESEL
- 16.1L 984Cu. In. l6 DIESEL Turbocharged
- 14.9L 912Cu. In. l6 DIESEL Turbocharged
- 12.8L 780Cu. In. 6 DIESEL
- 10.8L 661Cu. 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 IS RECALLING 366 MY 2006-2009 VNL TRUCKS EQUIPPED WITH SUPER SINGLE TIRES, BENDIX BRAKE CAM TUBES, AND VOLVO AIR SUSPENSION. THE VIBRATION FREQUENCY FROM THE SUSPENSION WITH SUPER SINGLE
IF LEFT UNTREATED, THE CRACK CAN PROPAGATE AND CAUSE FAILURE OF THE BRAKE CAM TUBE SUPPORT BRACKET(S
DEALERS WILL ADD A SUPPORT BRACKET TO THE BRAKE CAM TUBE. THE RECALL BEGAN ON JUNE 30, 2009. OWNER
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 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 - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
CBR - Active "Set Park Brake" Message On Drivers Information Display (DID)
CBR: 11L Engine - Air Conditioner (A/C) Line Damaged At Bracket - Model Year 2007 to Present.
CBR: Volvo VHD & VN Models - Vehicle Wil Not Start, PTO Active Message Displayed In Cluster, PTO Light On When PTO Switch Is Turned Off
TSB: Barksdale Leveling Valve, Leak Test
CBR: Programming Failure - Chassis With Cummins Engine And An Allison Transmission
Volvo Chassis - ( AMT, I-Shift ) - Transmission Grinding When Downshifting ; Range Synchronizer (Synchro) Timing Procedure - US07 And Newer
TSB-Charge Air Cooler t-clamp install.
Showing the 8 most recent of 65 technical service bulletins on file with NHTSA.
TL* THE CONTACT OWNS A 2008 VOLVO VNL. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN FOR AN INSPECTION WHERE IT WAS INFORMED THAT THE STEERING COLUMN WAS FRACTURED. THE VEHICLE WAS DIAGNOSED THAT THE
TL* THE CONTACT OWNS A 2008 VOLVO VNL. THE CONTACT STATED THAT THE FRONT DRIVERS SIDE DOOR FAILED TO OPEN FROM THE OUTSIDE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED
TL* THE CONTACT OWNS A 2008 VOLVO VNL. THE CONTACT STATED THAT WHILE PARKED ON AN INCLINE AND APPLING THE PARKING BRAKE, THE VEHICLE UNEXPECTEDLY ROLLED AWAY. THE FAILURE RECURRED THREE TIMES. THE VEH
