Vacuum: hoses, lines/piping, and fittingsRecall 71V-037 · Chevrolet and GMC vehicles
GENERAL MOTORS CORP. recall 71V-037 covers 9,600 Chevrolet and GMC vehicles for a vacuum: hoses, lines/piping, and fittings problem, reported to NHTSA on March 24, 1971.
Source: NHTSA recall 71V037000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
The fix
The remedy has not been described yet.
CHEVROLET BULLETIN NO 71-C-7.GMC BULLETIN NO 71-C-4 AND 71-C -4A.TRUCKS ANDSCHOOL BUSSES WITH BENDIX VACUUM HYDRAULIC BR AKES, TRUCKS WITH VACUUM BOOSTEDBRAKES.POSSIBILITY THAT SIN GLE BENDIX VACUUM HYDRAULIC BRAKE SYSTEM MAY HAVEEND CAP HEXHEAD FITTING ASSEMBLY WHICH DOES NOT MAKE PROPER CONTACT WITHENDOFBOOSTER SLAVE CYLINDER.THIS COULD CAUSE BRAKE FLUID TOLEAK FROM END OFBOOSTER SLAVE CYLINDER.LOSS OF BRAKE FLUIDWOULD RESULT IN LOW BRAKE PEDALAND CAUSE COMPLETE LOSS OF BR AKING ACTION.(CORRECT BY REPLACING WITH NEWIMPROVED NUT.)
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.