The defect
AN INCORRECT FRONT AXLE BRAKE VALVE MAY HAVE BEEN INSTALLED.
The risk
BRAKING ABILITY OF THE VEHICLE WITHOUT A TRAILER COULDBE REDUCED WHICH COULD RESULT IN AN ACCIDENT.
The remedy
REPLACE THE LQ4 VALVE WITH A QR1 QUICK RELEASE VALVE.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Kenworth | 1987, 1988 |
Components: SERVICE BRAKES, AIR:CONTROLS, PEDALS AND LINKAGES
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 | 1987 | 1 | 3 |
| Kenworth | 1988 | 1 | 5 |
Other service brakes, air recalls in 1988
9 of the 197 recall campaigns reported to NHTSA in 1988 concerned the service brakes, air; PACCAR, INCORPORATED filed 199 campaigns in all.
| 88V179000 18 Nov 1988 | LANDOLL CORPORATION |
| 88V171000 1 Nov 1988 | E-ONE, INC. |
| 88V151000 16 Sept 1988 | FONTAINE MODIFICATION CO. |
| 88V137000 16 Aug 1988 | GENERAL MOTORS CORP. |
| 88V126000 28 Jul 1988 | MACK TRUCKS, INCORPORATED |
| 88V075000 2 May 1988 | THOMAS BUILT BUSES, INC. |
| 88V067000 19 Apr 1988 | GENERAL MOTORS CORP. |
| 88V062000 14 Apr 1988 | ISUZU MOTORS LIMITED |
NHTSA recalls (public domain) · all recalls of 1988