Exhaust Pressure Control Valve Range/Performance
The POWERSTROKE-P0476 (Power Stroke) diesel fault code means: Exhaust Pressure Control Valve Range/Performance. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- intermediate
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What Are the Symptoms of POWERSTROKE-P0476?
- Check Engine Light on
- Slow warm-up in cold weather
- Possible reduced power
What Causes POWERSTROKE-P0476? (Most Likely First)
- Valve sticking from carbon buildup High
- Failed valve actuator or solenoid Moderate
- Exhaust pressure sensor reading incorrectly Moderate
Can I Still Drive with POWERSTROKE-P0476?
Short distances only. POWERSTROKE-P0476 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What does P0476 mean on a Power Stroke?
P0476 means Exhaust Pressure Control Valve Range/Performance. The exhaust pressure control valve is not producing the result the engine computer expects for its commands.
Is P0476 a Power Stroke-specific code?
No. P0476 is a generic OBD-II code defined by SAE J2012, so it means the same thing on any vehicle that sets it. The exact conditions Ford uses to set it on its diesels are in Ford service information.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose POWERSTROKE-P0476?
Command the valve with a scan tool and watch exhaust pressure respond.
Inspect the valve for carbon buildup and free movement.
Check the actuator circuit.
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines P0476 as a generic OBD-II code)
P0476 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:
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