OFFICIAL NHTSA RECALL
78V146000
Service Brakes, Air:supply:check Valve
Reported Jun 21, 1978 · FREIGHTLINER CORP.
Summary
THE CHECK VALVE, LOCATED ON THE INLET SIDE OF THE PRIMARY AND SECONDARY AIR TANKS MAY CRACK IN THE FEMALE FITTING AREA AND CAUSE A SLOW LOSS OF AIR. A LEAKING VALVE WILL REDUCE AIR PRESSURE AND PARTIAL OR COMPLETE LOSS OF BRAKES ON THOSE AXLES THAT DEPEND UPON THAT PART OF THE SYSTEM COULD OCCUR.
Consequence
Not supplied in the source record.
Remedy
THE DEALER WILL INSPECT AND, IF NECESSARY, INSTALL NEW AIR CHECK VALVES.
Notes
VEHICLE DESCRIPTION: HEAVY TRUCKS.SYSTEM: SERVICE BRAKES; AIR CHECK VALVE.CONSEQUENCES OF DEFECT: PARTIAL OR COMPLETE LOSS OF BRAKING CAPABILITY COULDRESULT IN LOSS OF VEHICLE CONTROL AND AN ACCIDENT. UNDER SOME CONDITIONS, THEEMERGENCY BRAKES MAY AUTOMATICALLY ACTIVATE, POSSIBLY ALLOWING THE DRIVERSUFFICIENT TIME TO SELECT A SAFE PLACE TO PULL OFF THE HIGHWAY.NOTE: EACH CHECK VALVE SHOULD IMMEDIATELY BE INSPECTED FOR A LEAK. IF ONE ISFOUND, THE DEALER SHOULD BE CONTACTED IMMEDIATELY.
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Vehicle entries in this campaign
This is model-level recall history. It does not confirm whether a particular VIN is affected or has received the repair. Check with NHTSA ↗