MERCURY ZEPHYR 1978: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)

 
Make : MERCURY Model : ZEPHYR Year : 1978
Build Dates : 1977-08-01 - 1978-04-01
NHTSA CAMPAIGN ID Number : 78V203000
Date Owner's Notified: 1978-11-17 Date Received by ODI: 1978-09-21 Date Added to Database: 1979-10-12
Manufacturers Involved: FORD MOTOR COMPANY
Manufacturer's Responsible for the Recall: FORD MOTOR COMPANY
Manufacturer Campaign Number:
Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)
Potential Number Of Units Affected : 218500
Summary:
      THE INVOLVED VEHICLES CONTAIN EMISSION CONTROL SYSTEMS THAT UTILIZE A PULSE AIR REED VALVE TO PERMIT AIR FLOW FROM THE AIR CLEANER TO THE EXHAUST MANIFOLD ON NEGATIVE PRESSURE PULSATIONS. THESE REED VALVES MAY FAIL UNDER COLD WEATHER CONDITIONS, CAUSING A BACKFLOW OF EXHAUST GAS INTO THE AIR CLEANER AND FUEL INDUCTION SYSTEM ON POSITIVE EXHAUST PULSES. THIS CAUSES AN OVERLY RICH AIR/FUEL MIXTURE, REDUCED FUEL ECONOMY AND REDUCED ENGINE PERFORMANCE. CONTINUED VEHICLE OPERATION MAY RESULT IN ENGINE STALLING OR OVERHEATING OF THE EXHAUST SYSTEM.
Consequence:
     
Remedy:
      THE DEALER WILL REPLACE THE PULSE AIR SYSTEM REED VALVE AND SILENCER WITHOUT CHARGE.
Report Initiator: ODI V Report
Regulation Part Number: Federal Motor Vehicle Safety Standard Number:
Notes:
      VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH 200 CID ENGINES,AUTOMATIC TRANSMISSIONS AND THERMACTOR PULSE AIR SUPPLY SYSTEMS.SYSTEM: EXHAUST; EMISSIONS SYSTEM.CONSEQUENCES OF DEFECT: OVERHEATING OF THE EXHAUST SYSTEM MAY LEAD TO SCORCHEDREAR SEATS AND CARPETS AND ASSOCIATED FUMES. ENGINE STALLING WOULD POSE ASAFETY HAZARD IN TRAFFIC, WHICH COULD LEAD TO A VEHICLE ACCIDENT.