Power assist: vacuumRecall 78V-178 · 1977–1978 Peugeot 504
PEUGEOT, INC. recall 78V-178 covers 10,000 1977–1978 Peugeot 504 for a power assist: vacuum problem, reported to NHTSA on August 16, 1978.
Source: NHTSA recall 78V178000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
WATER COULD ACCUMULATE BETWEEN THE MOUNTING SURFACE OF THE BRAKE POWER BOOSTER UNIT AND THE FRONT SURFACE OF THE PEDAL SUPPORT BRACKET TO WHICH IT IS ATTACHED. AFTER A PERIOD OF TIME, THE WATER COULD CAUSE CORROSION, WHICH WOULD HINDER THE FREE MOVEMENT OF THE POWER BOOSTER PISTON IN ITS GUIDE CHANNEL.
The fix
DEALER WILL INSPECT AND, IF NECESSARY, REPLACE THE BRAKE POWER BOOSTER WITHOUT CHARGE TO OWNER.
VEHICLE DESCRIPTION: PASSENGER VEHICLES.SYSTEM: SERVICE BRAKES; POWER BOOSTER.CONSEQUENCES OF DEFECT: WATER ACCUMULATION COULD INTERFERE WITH ENGINE POWER.THE REAR BRAKE LIGHTS MAT REMAIN LIT, AND BRAKE PADS AND LININGS MAY OVERHEAT.LOSS OF POWER ASSISTANCE TO THE BRAKING SYSTEM COULD CAUSE LOSS OF VEHICLECONTROL AND AN ACCIDENT.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.