The defect
CONTROL VALVES MAY NOT ALLOW FULL PRESSURE RELEASE AFTER BRAKE PEDAL HAS BEEN RELEASED BY OPERATOR.
The remedy
DEALER WILL REMOVE THE PLUGS FROM THE EXHAUST PORTS ON THE SERVICE SUPPLY AND EMERGENCY SUPPLY CONTROL VALVES, AND INSTALL A TUBE AND FITTING IN ITS PLACE.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Kenworth Chassis | 1983, 1984 |
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 Chassis | 1983 | 0 | 1 |
| Kenworth Chassis | 1984 | 0 | 1 |
Other service brakes, air recalls in 1984
10 of the 164 recall campaigns reported to NHTSA in 1984 concerned the service brakes, air; PACCAR, INCORPORATED filed 199 campaigns in all.
| 84V126000 11 Oct 1984 | PACCAR, INCORPORATED |
| 84V120000 2 Oct 1984 | GENERAL MOTORS CORP. |
| 84V114000 25 Sept 1984 | FREIGHTLINER CORP. |
| 84V117000 24 Sept 1984 | CHRYSLER CORPORATION |
| 84V081000 9 Jul 1984 | FREIGHTLINER CORP. |
| 84V061000 18 May 1984 | GENERAL MOTORS CORP. |
| 84V035000 23 Mar 1984 | MACK TRUCKS, INCORPORATED |
| 84V032000 22 Mar 1984 | MACK TRUCKS, INCORPORATED |
NHTSA recalls (public domain) · all recalls of 1984