Recall 78V-203: 1978 Ford Fairmont, 1978 Mercury Zephyr
FORD MOTOR COMPANY recall for engine and engine cooling, reported to NHTSA on Sep 21, 1978, covering about 218,500 vehicles.
The problem
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.
The fix
The dealer will replace the pulse air system reed valve and silencer without charge.
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.
Recall details
| Manufacturer | FORD MOTOR COMPANY |
|---|---|
| Component | Engine and Engine Cooling › Exhaust System › Emission Control › Crankcase (Pcv) |
| Recall started by | NHTSA (Office of Defects Investigation) |
| NHTSA campaign number | 78V203000 |
Vehicles in this recall
Not every vehicle of these model years is included. Enter your VIN at nhtsa.gov/recalls ↗ or ask a dealer.
Frequently asked questions
What is recall 78V-203?
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 is recall 78V-203 fixed?
The dealer will replace the pulse air system reed valve and silencer without charge.
Is the recall repair free?
Yes. Safety recall repairs are free at authorized dealers. Check whether your vehicle is included with its VIN at nhtsa.gov/recalls.