Recalls

Recalls Bulletins

Recall data for: 1978 MERCURY ZEPHYR

NHTSA Campaign Number: 78V203000

Manufacturer Campaign Number:

Make: MERCURY

Model: ZEPHYR

Year: 1978

Component:
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)

Manufacturers Involved: FORD MOTOR COMPANY

Begin Date Of Manufacturing: 19770801

End Date Of Manufacturing: 19780401

Recall Type: V

Potential Number Of Units Affected: 218500

Date Owner Notified By Manufacturer: 19781117

Recall Initiator: ODI

Manufacturer Responsible For Recall: Ford Motor Company

Date Report Received By ODI: 19780921

Date Added To File: 19791012

Regulation Part Number:

Federal Motor Vehicle Safety Standard Number:

Defect 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 Summary:

Corrective Action:
THE DEALER WILL REPLACE THE PULSE AIR SYSTEM REED VALVE AND SILENCER WITHOUT CHARGE.