What does P1142 mean on a Ford?

P1142. Fuel Restriction Condition (Diesel). Applies to F-250/F-350 Super Duty with Power Stroke diesel.

What causes P1142 on a Ford?

Clogged fuel filter Gelling fuel in cold weather Collapsed suction line Tank pickup screen blocked Failing supply pump

How do I fix P1142 on a Ford?

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

Code

P1142

Fuel Restriction Condition (Diesel)

Category: Powertrain - Fuel/Air Metering
Severity: Check Engine Light
Applies to: F-250/F-350 Super Duty with Power Stroke diesel
Related: P0087 Fuel Rail/System Pressure - Too Low on OBD Codes List

Findings, check these first

Clogged fuel filter
Gelling fuel in cold weather
Collapsed suction line
Tank pickup screen blocked
Failing supply pump

Standard procedure

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

Code lookup

Type a code above, or start from a symptom or a common code.

Press / to jump to the box. Ford-enhanced powertrain, body, chassis and network codes. Generic P0xxx codes live on OBD Codes List.

Sources and review

Review: qualified. Read the source limits below.

OBDII.pro: P1142 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1142: Fuel Restriction Condition
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.

Last updated 2026-09-05.

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