1999 VOLVO WAH recalls

ON SOME HEAVY DUTY CLASS 8 VEHICLES EQUIPPED WITH ARVINMERITOR AXLE ASSEMBLIES WHICH MAY HAVE BEEN MANUFACTURED WITH TRW MODEL 20EDL BALL SOCKETS, THE TIE ROD BALL-SOCKET BEARINGS HAVE A BELOW SPECIFICATION CASE DEPTH AND/OR HARDNESS WHICH CAN LEAD TO PREMATURE WEAR OUT OF THE SOCKET IN SOME APPLICATIONS.

IF THIS CONDITION OCCURS, THE DRIVER CAN LOSE STEERING CONTROL, POSSIBLY RESULTING IN A VEHICLE CRASH.

DEALERS WILL REPLACE THE BALL SOCKET ASSEMBLIES. THIS CAMPAIGN SUPERSEDES NHTSA CAMPAIGN NOS. 01V-139.001 AND 02V-037.002. OWNER NOTIFICATION BEGAN JULY 25, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT VOLVO TRUCKS AT 1-800-528-6586.

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) CHAFED ABS WHEEL SPEED SENSOR WIRES ON ROTATING PARTS OR 2) A DAMAGED COMPONENT AT THE WHEEL END THAT GENERATES A CERTAIN TYPE OF ERRATIC SENSOR SIGNAL.

THIS CONDITION COULD CAUSE THE ABS ECU TO EXHAUST THE AIR AT THE AIR BRAKE MODULATORS FOR ONE OR MORE OF THE WHEELS. THIS COULD RESULT IN EXTENDED BRAKING DISTANCES AND A POSSIBLE CRASH.

DEALERS WILL REPLACE THE ABS ECU.

VEHICLE DESCRIPTION: HEAVY DUTY CLASS 8 TRUCKS. THE ANTILOCK BRAKE SYSTEM (ABS) WIRE IN THE TRAILER CABLE JUNCTION BOX AT THE END OF THE FRAME MAY NOT CONTAIN POWER FOR THE TRAILER ABS AS REQUIRED BY FMVSS NO. 121, "AIR BRAKE SYSTEMS."

UNDER A HEAVY BRAKE APPLICATION (LOCK UP), A NON-FUNCTIONING TRAILER ABS COULD ALLOW THE TRAILER TO SKID, INCREASING THE RISK OF A CRASH.

DEALERS WILL INSTALL THE ELECTRICAL CIRCUIT REQUIRED TO ACTIVATE THE CENTER PIN OF THE TRAILER CABLE CIRCUIT.

VEHICLE DESCRIPTION: HEAVY DUTY, CLASS 8, TRUCKS EQUIPPED WITH TIE ROD ASSEMBLIES CONTAINING 24-DL MODEL BALL SOCKETS AND MANUFACTURED BY TRW. CERTAIN OF THE TIE ROD BALL-SOCKET BEARINGS HAVE A BELOW-SPECIFICATION CASE DEPTH AND/OR HARDNESS, WHICH CAN LEAD TO PREMATURE WEAR OF THE SOCKET.

IF THIS CONDITION OCCURS, THE DRIVER CAN LOSE PARTIAL CONTROL OF THE RIGHT FRONT WHEEL, POSSIBLY RESULTING IN A CRASH.

DEALERS WILL REPLACE THE DEFECTIVE BALL SOCKETS AND/OR DRAG LINKS. OWNER NOTIFICATION BEGAN DURING MAY 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT VOLVO TRUCKS AT 1-800-528-6586.