Service brakes, hydraulic › Foundation components › Master cylinder
International Harvester 3900FC
Reported Oct 1, 19934 vehicles affectedNAVISTAR INTL CORP.Built Jul 1, 1992 – May 1, 1993
The defect
A gap between the master cylinder and remote brake fluid reservoir adapter, caused by an out-of-specification condition of the adapter, results in brake fluid loss during brake application.
The risk
Brake fluid loss results in loss of pressure causingpartial loss of braking ability, which may lead to an accident.
System: brakes; master cylinder.equipment description: alliedsignal inc. Braje master cylinders supplied tooem's of school bus, motorhome and shuttle bus chassis.notes: alliedsignal inc. Initiated this campaign.if you have problems exchanging the fluid reservoir adapters you can obtainassistance by following the procedure described in the owner assistance guidesection in your owner's manual. Also, contact the national highway trafficsafety administration's auto safety hotline at 1-800-424-9393.