The defect
PACCAR IS RECALLING 1,043 MY 2008-2009 KENWORTH C500, T2000,T660, T800 AND W900 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. IN SUCH AN EVENT, THE OPERATOR SHOULD OBSERVE AN AIR LEAK, INDICATIONS OF LOW AIR PRESSURE VIA THE PRIMARY AND SECONDARY AIR GAUGES, AND AUDIBLE AND VISUAL LOW AIR PRESSURE WARNING ALARMS. A VEHICLE CRASH IS POSSIBLE IF THESE WARNINGS ARE NOT HEEDED.
The remedy
DEALERS WILL REPLACE THE BENDIX MV-3 DASH CONTROL VALVES FREE OF CHARGE. THE RECALL BEGAN ON APRIL 14, 2008. OWNERS MAY CONTACT KENWORTH AT 1-425-828-4196.
NHTSA's own wording · initiated by MFR
Vehicles covered
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 |
|---|---|---|---|
| Kenworth C500 | 2008 | 0 | 9 |
| Kenworth C500 | 2009 | 0 | 5 |
| Kenworth T2000 | 2008 | 2 | 14 |
| Kenworth T2000 | 2009 | 0 | 12 |
| Kenworth T660 | 2008 | 2 | 14 |
| Kenworth T660 | 2009 | 0 | 17 |
| Kenworth T800 | 2008 | 1 | 25 |
| Kenworth T800 | 2009 | 2 | 19 |
| Kenworth W900 | 2008 | 1 | 20 |
| Kenworth W900 | 2009 | 0 | 17 |
| Peterbilt 330 | 2009 | 0 | 4 |
| Peterbilt 335 | 2009 | 2 | 3 |
| Peterbilt 340 | 2009 | 0 | 4 |
| Peterbilt 365 | 2009 | 0 | 14 |
| Peterbilt 367 | 2009 | 0 | 13 |
| Peterbilt 384 | 2009 | 0 | 10 |
| Peterbilt 386 | 2009 | 1 | 10 |
| Peterbilt 388 | 2009 | 0 | 15 |
| Peterbilt 389 | 2009 | 0 | 12 |
| Peterbilt 389K | 2009 | 0 | 2 |
Other parking brake recalls in 2008
7 of the 683 recall campaigns reported to NHTSA in 2008 concerned the parking brake; PACCAR INCORPORATED filed 113 campaigns in all.
| 08V687000 22 Dec 2008 | SPRINTER ENGINEERING & COMPLIANCE SUPPOR |
| 08V525000 8 Oct 2008 | CHRYSLER LLC |
| 08V177000 17 Apr 2008 | MACK TRUCKS, INC |
| 08V159000 9 Apr 2008 | DAIMLER TRUCKS NORTH AMERICA |
| 08V112000 12 Mar 2008 | CAPACITY OF TEXAS |
| 08V097000 29 Feb 2008 | INTERNATIONAL TRUCK & ENGINE CORPORATION |
NHTSA recalls (public domain) · all recalls of 2008