All Investigations » Investigation EA95018

Defect Investigation of Separation Of Master Cylinder

Subject:	Separation of master cylinder
Components covered:	Service brakes, hydraulic
Investigations Summary:	This investigation was opened on Jun. 19, 1995. It was closed on Apr. 2, 1996. Note: this investigation has resulted in a vehicle safety recall. Stress corrosion cracking (scc) occurs in studs used to secure brake master cyinder to power brake booster. Due to scc, the studs fracture and master cylinder separates from booster. This results in sudden, unforeseen, and complete loss of braking.
Vehicles Affected by this investigation:	1991 Ford Explorer 1992 Ford Explorer 1993 Ford Explorer 1994 Ford Explorer 1991 Ford Ranger 1992 Ford Ranger 1993 Ford Ranger 1994 Ford Ranger 1991 Mazda B Series 1992 Mazda B Series 1993 Mazda B Series 1994 Mazda B Series 1991 Mazda B-series Truck 1992 Mazda B-series Truck 1993 Mazda B-series Truck 1994 Mazda B-series Truck 1991 Mazda Navajo 1992 Mazda Navajo 1993 Mazda Navajo 1994 Mazda Navajo