P1142 Fuel Restriction Condition (Diesel)
What does P1142 mean on a Ford?
P1142 — Fuel Restriction Condition (Diesel). This Ford-enhanced code applies to F-250/F-350 Super Duty with Power Stroke diesel.
Common causes of P1142
- Clogged fuel filter
- Gelling fuel in cold weather
- Collapsed suction line
- Tank pickup screen blocked
- Failing supply pump
How to fix P1142
- Replace the fuel filter immediately
- Treat the tank with anti-gel in winter
- Inspect suction lines for collapse
- Check pickup screen if restriction persists
- Test supply pump output volume