GMC B7T042 1997 car safety problem was reported on Sept 03, 1996.GMC B7T042 1997, manufactured by GENERAL MOTORS CORP. had a problem with SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS . THE GRAVEL ROAD CAUSED THE BRAKE LINE TO BREAK AND MASTER CYLINDER TO LOOSE BRAKE FLUID. YH.Gmc B7t042 1997 problem was reported in LAMAR, CO. Original Owner. Vehicle was purchased on 19960311. Vehicle was not using Cruise Control. Gmc B7t042 1997 drive type:RWD. Gmc B7t042 1997 TRANSMISSION TYPE: AUTO. Report Your Car ProblemGo Top