The 1999 Ford Mustang has 3 recalls, the most serious affecting SVT models where a rear suspension ball joint can shift out of position and crack the surrounding casting, potentially causing a sudden loss of rear suspension control.
This risk is most likely to occur during hard acceleration from a stop, and a fractured knuckle casting could leave a rear wheel with severely compromised movement or stability. On the safety equipment side, certain seatbelt retractors contain a pin shaft that was formed incorrectly, which can cause the locking mechanism to stop switching between its two modes and prevent the belt from pulling out of the retractor normally, making it difficult to buckle in. The third recall applies to Mustang GT models with the 4.6-liter two-valve engine, where the transmission wiring harness can rub against the exhaust gas recirculation tube, wearing through the protective covering and damaging the wires underneath. That wiring damage can trigger the check engine light, prevent the engine from starting, or cause the transmission to stay stuck in a lower gear and refuse to shift up.