Recall 79V-077: 1975–1979 Ford B Series, 1975–1979 Ford C Series and 4 more
FORD MOTOR COMPANY recall for service brakes, air, reported to NHTSA on Mar 29, 1979, covering about 65,000 vehicles.
The problem
Certain air brake anti-lock modulators could malfunction during operation of the anti-lock system. A nylon piston within the modulator air valve system can swell from exposure to system contaminants. Continued exposure may cause the piston to swell to the extent that interference with the cylinder wall will result, causing momentary sticking or a permanent jam. This can result in temporary or permanent loss of braking for the affected axle.
The fix
The pistons in the valve portion of the modulators will be replaced with pistons that do not swell when exposed to air brake system contaminants.
Notes
Vehicle description: heavy trucks equipped with anti-lock air brakecontrollers.system: service brakes; control assembly.
Recall details
| Manufacturer | FORD MOTOR COMPANY |
|---|---|
| Component | Service Brakes, Air › Antilock › Control Unit/Module |
| Recall started by | the manufacturer |
| NHTSA campaign number | 79V077000 |
Vehicles in this recall
| Vehicle | Model years | |
|---|---|---|
| Ford B Series | 1975, 1976, 1977, 1978, 1979 | All years |
| Ford C Series | 1975, 1976, 1977, 1978, 1979 | All years |
| Ford CL Series | 1975, 1976, 1977, 1978, 1979 | All years |
| Ford F Series | 1975, 1976, 1977, 1978, 1979 | All years |
| Ford L Series | 1975, 1976, 1977, 1978, 1979 | All years |
| Ford W Series | 1975, 1976, 1977, 1978, 1979 | All years |
Not every vehicle of these model years is included. Enter your VIN at nhtsa.gov/recalls ↗ or ask a dealer.
Frequently asked questions
What is recall 79V-077?
Certain air brake anti-lock modulators could malfunction during operation of the anti-lock system. A nylon piston within the modulator air valve system can swell from exposure to system contaminants. Continued exposure may cause the piston to swell to the extent that interference with the cylinder wall will result, causing momentary sticking or a permanent jam. This can result in temporary or permanent loss of braking for the affected axle.
How is recall 79V-077 fixed?
The pistons in the valve portion of the modulators will be replaced with pistons that do not swell when exposed to air brake system contaminants.
Is the recall repair free?
Yes. Safety recall repairs are free at authorized dealers. Check whether your vehicle is included with its VIN at nhtsa.gov/recalls.