NHTSA recall 87V088000
Service brakes, air › Controls › Foot control/valve
Kenworth Mid Ranger and 1 more
The defect
Single check air system valve may malfunction due to corrosion.
The risk
Air could transfer between circuits of dual air brakesystem in event of failure of one or the other circuit, which could causedepletion of the entire air system.
The remedy
Replace check valves, as necessary.