Ford Recall 90V121000: Service Brakes, Air, Controls, Pedals And Linkages

NHTSA recall 90V121000 · announced June 25, 1990 · filed by Ford Motor Company · 15,260 units affected

The problem

SECONDARY SERVICE RESERVOIR AIR CHECK VALVES MAY NOT SEAT PROPERLY DUE TO A MECHANICAL INTERFERENCE CONDITION BETWEEN A CIRCULAR BRASS GUIDE AND THE WALL OF A CYLINDRICAL FERRULE IN WHICH THE BRASS GUIDE IS INTENDED TO MOVE FREELY.

The risk

IN THE EVENT OF PRESSURE LOSS IN THE SUPPLY RESERVOIR,A DEFECTIVE CHECK VALVE WOULD ALLOW PRESSURE EQUALIZATION BETWEEN PRIMARY ANDSECONDARY SERVICE RESERVOIRS, PRESENTING THE POTENTIAL FOR LOSS OR ABSENCE OFFRONT BRAKING ABILITY, WHICH COULD CAUSE LOSS OF CONTROL AND AN ACCIDENT.

What to do

INSTALL REVISED DESIGN SECONDARY SERVICE RESERVOIR CHECK VALVE COMPONENTS.

Official NHTSA recall notice →

Notes

SYSTEM: AIR PRESSURE CHECK VALVES.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS AND CHASSIS CABS.

Vehicles covered by this recall

Source: National Highway Traffic Safety Administration public recall data. This page reports official records and is not legal, medical, or repair advice.