| Make : MERCURY | Model : ZEPHYR | Year : 1978 |
| Build Dates : 19770801 - 19780401 | ||
| NHTSA Campaign ID Number : 78V203000 | ||
| Date Owners Notified: 19781117 | Date Received by ODI: 19780921 | Date Added to Database: 19791012 |
| Manufacturer(s) 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 | ||
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Summary of the Safety Concern:
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. |
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Consequence:
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Remedy:
THE DEALER WILL REPLACE THE PULSE AIR SYSTEM REED VALVE AND SILENCER WITHOUT CHARGE. |
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| Report Initiator: ODI | Vehicles Report | |
| Regulation Part Number: | Federal Motor Vehicle Safety Standard Number: | |
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Notes:
CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236). |
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