NHTSA Recall 78V203000
NHTSA Campaign Id 78V203000; Date: Sep. 21, 1978
Recalled Vehicles:
1978 Ford Fairmont; 1978 Mercury Zephyr
Component: Engine And Engine Cooling:exhaust System:emission Control:crankcase (pcv)
Manufactured by: Ford Motor Company
Affected Units:: 218,500
Recall 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.
How to Fix:
The dealer will replace the pulse air system reed valve and silencer without charge.
Recall 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.
Date Owners notified by Manufacturer: Nov 17, 1978
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