1997 Volvo WG Service and Repair Manual
1997 Volvo WG 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.
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VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH HALDEX MANIFOLD DASH VALVES (MDV) USED IN TRACTOR AND TRAILER PARKING BRAKES. THESE VALVES DO NOT MEET THE REQUIREMENTS OF FMVSS NO. 121, "AIR B
THE LOSS OF SERVICE BRAKES CAN OCCUR, INCREASING THE RISK OF A CRASH.
DEALERS WILL REPLACE THE SUSPECT VALVES.
WARNING LABELS IDENTIFYING THE CLIMBING SEQUENCE AND PROCESS WERE OMITTED.
PERSONS NOT USING THE SEQUENCE AND PROCESS DURING CAB ENTRY OR EXIT OR WHEN USING THE OPTIONAL BACK
VOLVO HEAVY TRUCK WILL BE PROVIDING WARNING LABELS TO BE INSTALLED BY OWNERS ON THEIR TRUCKS.
VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS BUILT WITH BENDIX AIR ABS WITH AN EC-17 1030R ELECTRONIC CONTROL UNIT (ECU), THERE HAVE BEEN REPORTS OF UNWANTED ABS ACTIVATION AT LOW SPEEDS CAUSED BY 1) CHAF
THIS CONDITION COULD CAUSE THE ABS ECU TO EXHAUST THE AIR AT THE AIR BRAKE MODULATORS FOR ONE OR MOR
DEALERS WILL REPLACE THE ABS ECU.
VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH AFTERMARKET ALUMINUM DUAL WHEELS, 22.5X8.25, ONE-PIECE, TUBELESS, SUPPLIED BY ACCURIDE/AKW. CERTAIN DESIGN REVISIONS COMBINED WITH PROCESS CONDIT
THIS CONDITION CAN CAUSE FAILURE OF THESE WHEELS.
ACCURIDE/AKW WILL REPLACE THESE WHEELS.
VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH A FAL 8.0 FRONT STEER AXLE. THE UPPER STEERING ARM CAN FAIL WITHOUT WARNING.
THIS CONDITION CAN RESULT IN THE LOSS OF STEERING CONTROL, INCREASING THE RISK OF A CRASH.
DEALERS WILL INSPECT THE UPPER STEERING ARM AND REPLACE IT, IF REQUIRED.
VEHICLE DESCRIPTION: CLASS 8 HEAVY DUTY TRUCKS. THE STEER AXLE WHEEL BEARING JAM NUT LOCK WASHER MAY NOT HAVE BEEN BENT OVER THE JAM NUT AFTER THE WHEEL BEARINGS WERE ADJUSTED.
IF THIS CONDITION EXISTS, THE JAM NUT AND WHEEL BEARING ADJUSTING NUT CAN BACK OFF THE SPINDLE ALLOW
DEALERS WILL INSPECT THE STEERING AXLE WHEEL BEARING JAM NUT LOCK WASHER TO DETERMINE IF IT IS BENT
VEHICLE DESCRIPTION: CLASS 8 HEAVY DUTY TRUCKS. THE AIR SUSPENSION CONTROL VALVE SUPPLY LINE WAS NOT PLUMBED THROUGH AN AIR PRESSURE PROTECTION VALVE. IN THE EVENT OF A FAILURE, THERE WOULD BE LOSS
THIS CONDITION WOULD RESULT IN INCREASED STOPPING DISTANCES.
DEALERS WILL INSTALL THE NECESSARY AIR PRESSURE PROTECTION VALVE.
CERTAIN HEAVY DUTY CLASS 8 TRUCKS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THE TWO TAIL LAMPS, BAC
IT MAY NOT ALLOW THE DRIVER OF A REARWARD APPROACHING VEHICLE TO HAVE FULL VIEW OF THE LAMPS.
DEALERS WILL ATTACH THE TWO TAIL LAMPS, BACK-UP LAMP, AND THE LICENSE TAP LAMP ON STIFFER BRACKETS.
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
NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions
(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 24 technical service bulletins on file with NHTSA.
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