The defect
DTNA IS RECALLING CERTAIN MODEL YEAR 2011-2012 WESTERN STAR 4900 VEHICLES MANUFACTURED FROM APRIL 1, 2010, THROUGH MAY 13, 2011, WITH STANDARD CAB HEIGHT AND A DD13 ENGINE. THE SUPPLY AND DELIVERY AIRLINES FOR THE FOOT VALVE MAY CONTACT THE AIR INTAKE ON THE ENGINE. RELATIVE MOTION BETWEEN THE CAB AND THE ENGINE MAY ALLOW THE DELIVERY AIRLINES TO CHAFE ON THE AIR INTAKE.
The risk
A HOLE IN THE DELIVERY AIR LINE MAY DEVELOP, EVENTUALLY LEADING TO REDUCED BRAKING CAPACITY TO THE FRONT OR REAR BRAKES, INCREASING THE RISK OF A CRASH.
The remedy
DEALERS WILL INSPECT THE AIR LINES AND REROUTE IF NECESSARY TO PROVIDE ADDITIONAL CLEARANCE TO THE ENGINE AIR INTAKE. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON DECEMBER 21, 2011. OWNERS MAY CONTACT DTNA AT 1-800-547-0712.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Western Star 4900 | 2011, 2012 |
Components: SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Western Star 4900 | 2011 | 1 | 14 |
| Western Star 4900 | 2012 | 1 | 8 |
Other service brakes, air recalls in 2011
28 of the 597 recall campaigns reported to NHTSA in 2011 concerned the service brakes, air; DAIMLER TRUCKS NORTH AMERICA filed 134 campaigns in all.
| 11V601000 28 Dec 2011 | ROSA TRAILER MFG |
| 11V587000 6 Dec 2011 | SPARTAN CHASSIS, INC. |
| 11V555000 10 Nov 2011 | MERTZ MANUFACTURING, LLC |
| 11V512000 13 Oct 2011 | GREAT LAKES MANUFACTURING INC. |
| 11V488000 3 Oct 2011 | TRANSCRAFT CORPORATION |
| 11V481000 22 Sept 2011 | WILSON TRAILER COMPANY |
| 11V479000 16 Sept 2011 | SILVER EAGLE MANUFACTURING |
| 11V412000 11 Aug 2011 | Spartan Motors, Inc. |
NHTSA recalls (public domain) · all recalls of 2011