VOLVO WCA 1994: SERVICE BRAKES, AIR
NHTSA Campaign ID Number: 96V095000
| Make | Model | Year |
|---|---|---|
| VOLVO | WCA | 1994 |
| Date Owners Notified | Date Received by ODI | Date Added to Database |
| 1996-04-23 | 1996-03-23 | 1996-06-11 |
Production Dates: 1994-08-01 - 1996-02-01
Manufacturers Involved: Volvo Trucks North America
Component: SERVICE BRAKES, AIR
Potential Number Of Units Affected: 771
Report Initiator: MFR MFR Report
THE TRACTION SOLENOID EXHAUST CAN BE OBSTRUCTED DUE TO INADEQUATE DRAINAGE AND A BUILD-UP OF ROAD CONTAMINATION BETWEEN THE MOUNTING BRACKET AND THE SOLENOID HOUSING. THE OBSTRUCTED EXHAUST PREVENTS THE RELAY VALVE CONTROL AIR PRESSURE FROM VENTING AFTER A DIFFERENTIAL BRAKING TRACTION EVENT.
THIS CONDITION WOULD KEEP THE REAR AXLE SERVICE BRAKES APPLIED WITHOUT ANY BRAKE PEDAL MOVEMENT BY THE DRIVER INCREASING THE RISK OF A VEHICLE ACCIDENT.
DEALERS WILL REMOVE THE SUSPECT VALVE AND INSTALL A NEW VALVE THAT HAS A MODIFIED SOLENOID HOUSING WHICH WILL ALLOW FOR SUFFICIENT DRAINAGE AND A NEW VALVE MOUNTING BRACKET WITH INCREASED HEIGHT TO REDUCE ENTRY OF CONTAMINATION.
SYSTEM: BRAKES; AIR SYSTEMS. VEHICLE DESCRIPTION: CLASS 8 HEAVY DUTY TRUCKS EQUIPPED WITH A BENDIX ATR TRACTION RELAY VALVE. NOTE: 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 GM HEAVY TRUCK AT 1-800-528-6586. ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.
