NHTSA Campaign Id 91V081000; Date: Apr. 26, 1991
Release of the parking brakes while the vehicle isunattended or without warning could result in a vehicle accident.
Recalled Vehicles:1988 White Gmc WCA; 1989 White Gmc WCA; 1990 White Gmc WCA; 1988 White Gmc WCL; 1989 White Gmc WCL; 1990 White Gmc WCL; 1988 White Gmc WCM; 1989 White Gmc WCM; 1990 White Gmc WCM; 1988 White Gmc Wcmg; 1989 White Gmc Wcmg; 1990 White Gmc Wcmg
Component: Parking Brake:driveline:air
Manufactured by: Volvo Gm Heavy Truck Corp
Affected Units:: 53
Recall Summary:The bendix mv-2 parking control valve installed in vehicles without a desiccant style air dryer may experience a seal failure. This failure may allow the valve to move from the park position to the release position, allowing the parking brakes to release.
How to Fix:Rebuild the bendix mv-2 parking control valve.
Recall Notes:System: parking control valve. Vehicle description: heavy trucks 33,000 lbs. Gvwr and greater.
Date Owners notified by Manufacturer: May 2, 1991
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