The defect
MACK IS RECALLING 66 MY 2009 GU TRUCKS EQUIPPED WITH BENDIX MV-3 DASH CONTROL VALVES. THE MOLDED VALVE BODY HAS AN INCORRECT CORE PIN IN THE INJECTION MOLD CAUSING THE VALVE BODY TO BE OVERSIZED IN THE DOUBLE CHECK VALVE AREA. THIS CONDITION CAN ALLOW THE RUBBER DOUBLE CHECK VALVE TO BECOME LODGED IN THE BODY OPENING UNDER CERTAIN CIRCUMSTANCES.
The risk
IF THE DOUBLE CHECK VALVE BECOMES LODGED, IN THE EVENT OF A PRIMARY RESERVOIR FAILURE, AIR PRESSURE CAN LEAK PAST THE LODGED DOUBLE CHECK VALVE THEREBY DEPLETING THE SECONDARY RESERVOIR, CAUSING REDUCED ABILITY FOR MODULATING THE SERVICE EMERGENCY BRAKES INCREASING THE RISK OF A CRASH.
The remedy
DEALERS WILL INSPECT THE MV-3 DASH VALVE FOR THE PRODUCTION DATE CODE. VALVES IN THE AFFECTED PRODUCTION LOTS WILL BE REPLACED FREE OF CHARGE. THE RECALL BEGAN ON MAY 9, 2008. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-528-6586.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack GU | 2009 |
Components: PARKING BRAKE:CONVENTIONAL:AIR
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Mack GU | 2009 | 1 | 7 |
Other parking brake recalls in 2008
7 of the 683 recall campaigns reported to NHTSA in 2008 concerned the parking brake; MACK TRUCKS, INC filed 74 campaigns in all.
| 08V687000 22 Dec 2008 | SPRINTER ENGINEERING & COMPLIANCE SUPPOR |
| 08V525000 8 Oct 2008 | CHRYSLER LLC |
| 08V159000 9 Apr 2008 | DAIMLER TRUCKS NORTH AMERICA |
| 08V128000 21 Mar 2008 | PACCAR INCORPORATED |
| 08V112000 12 Mar 2008 | CAPACITY OF TEXAS |
| 08V097000 29 Feb 2008 | INTERNATIONAL TRUCK & ENGINE CORPORATION |
NHTSA recalls (public domain) · all recalls of 2008