2008 Volvo VHD Service and Repair Manual

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Covers all 2008 VHD trims — Base Straight Truck - Long Conventional, Base Tractor Truck - Long Conventional ·
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2008 Volvo VHD 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
  • 12.8L 780Cu. In. 6 DIESEL

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
NHTSA #13V26800026/06/2013Component: POWER TRAIN:CLUTCH ASSEMBLY

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

Consequence

Without a signal to disengage the clutch when the brakes are applied, the distance required to stop

Remedy

Volvo Trucks will notify owners and dealers will inspect and repair the vehicles if necessary. The

NHTSA #09V17300021/05/2009Component: VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR

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.

Consequence

IF THIS HAPPENS A SHORT CIRCUIT MAY OCCUR, WHICH OVER TIME COULD POSSIBLY LEAD TO A VEHICLE FIRE.

Remedy

VOLVO WILL REPLACE THE WIPER MOTOR FREE OF CHARGE. SINCE THIS RECALL INVOLVES A LARGE NUMBER OF VE

NHTSA #10V49200012/10/2010Component: EQUIPMENT:OTHER:LABELS

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

Consequence

THE MISINFORMATION ON THESE LABELS COULD LEAD TO A VEHICLE OVERLOADING THAT CAN INCREASE RISK OF A C

Remedy

DEALERS WILL INSPECT AND REPLACE THE LABELS FREE OF CHARGE. THE SAFETY RECALL BEGAN ON FEBRUARY 25,

TSB #11030472

CBR - Z Spring Bracket Wear. Volvo Chassis

TSB #11021307

CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.

TSB #11018822

Inactive Code P25AE00 Being Generated After A Hard Pull And A Momentary Drop In Engine Oil Pressure (Low Oil Pressure) (Possible Related Codes - SPN4811 , SPN 100 , PID 100)

TSB #11017731

TSB - V-710-001 Engine Crossmember Loose Hardware.

TSB #11006949

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.

TSB #11002821

CBR - Accelerator Pedal: Inspection/Instructions

TSB #11000873

CBR - 11 Liter Engines - Fuel In Oil.

TSB #10251323

CBR - Active "Set Park Brake" Message On Drivers Information Display (DID)

Showing the 8 most recent of 137 technical service bulletins on file with NHTSA.

20090122Component: FUEL SYSTEM, DIESEL

REPAIRS ON A CLASS 8 OVER THE ROAD TRACTOR, TWO FUEL PUMP HAS BEING INSTALL WITH NO,RESORT THE THIRD ONE WILL BE INSTALL ON FRIDAY THE 23 OF JANUARY HOPING THAT WILL BE ENOUGH TO DO THE JOB. *TR

20080327Component: UNKNOWN OR OTHER

THIS IS A COMPLIANCE INVESTIGATION INSPECTION REQUEST FOR THE FOLLOWING PUBLIC TRANSPORTATION SYSTEMS: (1) HOUSTON - METRO BUS (2) SAN ANTONIO - VIA BUS. *TR

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