Foundation components: master cylinderRecall 69V-039 · Chevrolet and GMC vehicles
GENERAL MOTORS CORP. recall 69V-039 covers 163,493 Chevrolet and GMC vehicles for a foundation components: master cylinder problem, reported to NHTSA on April 8, 1969.
Source: NHTSA recall 69V039000 and manufacturer quarterly reports. Started by an NHTSA defect investigation.
The problem
The fix
The remedy has not been described yet.
POSSIBILITY THAT SEAL ON PISTON IN MASTER BRAKE CYLINDER MAY, AFTER EXTENDEDUSAGE, ALLOW BRAKE FLUID TO PASS SEAL PERMITTING BRAKE PEDAL TO BE PUSHED TOFLOOR IN A SLOW GRADUAL STOP OR UPON THE FIRST AP- PLICATION OF BRAKES AFTERVEHICLE HAS BEEN STANDING FOR A PERIOD OF TIME.IS ALSO A POSSIBILITY THATINNER LINER OF VACUUM HOSE WHICH CONNECTS TO BRAKE VACUUM BOOSTER MAY COLLAPSE,CAUSING LOSS OF POWER BRAKE ASSIST.(CORRECT BY INSTALLING NEW PARTS IN BRAKEMASTER CYLINDER AND MODIFYING VACUUM HOSE ROUT- ING.)
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.