The problem
Vehicle description: heavy duty trucks equipped with optional wabco air dryer. The air brake system was plumbed so that the systems did not provide air reservoir isolation. This does not comply with the requirements of FMVSS no. 121, "air brake systems."
The risk
The air brake reservoir pressure could be depleted, activating the emergency spring brake. With the emergency spring brake deployed, the vehicle would stop and could not be moved until the brake air system was repaired.
The fix
Dealers will repair the air line plumbing to install a check valve.
Recall details
| NHTSA campaign | 99V-050 (99V050000) |
|---|---|
| Manufacturer number | 99S05 |
| Manufacturer | Ford Motor Company |
| Component | Service brakes, air |
| Report date | March 15, 1999 |
| Owners notified | May 5, 1999 |
| Vehicles affected | 1,687 |
| Initiated by | Manufacturer |
Vehicles covered
Owner complaints about the brakes
Frequently asked questions
Is the recall 99V-050 repair free?
Yes. Ford dealers will fix the problem at no cost: Dealers will repair the air line plumbing to install a check valve.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 1,687 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.