Exhaust/crankcase emission control:check valve
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.
Corrective Action
The dealer will replace the pulse air system reed valve and silencer without charge.
Similar Recalls
Other recalls from Ford Motor Company or involving Engine And Engine Cooling.
FAQ: Recall 78V203000
Your rights, the repair process, and what each field on this page means.
What is recall 78V203000?
NHTSA recall 78V203000 was issued by Ford Motor Company on September 21, 1978. It addresses: Exhaust/crankcase emission control:check valve. The recall affects approximately 218,500 vehicles, with the defect involving the Engine And Engine Cooling component.
How do I get this recall repaired?
Contact any authorized Ford Motor Company dealer and reference NHTSA recall ID 78V203000 or the manufacturer campaign number NR (Not Reported). Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.