AutoCodes – Ford – P0476 Ford

P0476 Ford Code - Exhaust Pressure Control Valve 'A' Range/Performance

Q: What does the OBDII code P0476 mean on a Ford vehicle?

P0476 indicates a problem with the Exhaust Pressure Control Valve 'A' not operating within the expected range or performance parameters.

Q: What are the common symptoms of code P0476 in a Ford?

Common symptoms include reduced engine performance, poor fuel efficiency, black smoke from the exhaust, and possibly the Check Engine Light being illuminated.

Q: What causes the P0476 code to appear in a Ford?

Possible causes include a faulty exhaust pressure control valve, clogged or restricted exhaust passages, damaged wiring or connectors, or a malfunctioning PCM (Powertrain Control Module).

Q: How can I diagnose the P0476 code on my Ford?

Diagnose by inspecting the exhaust pressure control valve for damage, checking for clogged exhaust passages, and testing the electrical connections and wiring for continuity or corrosion.

Q: Can I drive my Ford with the P0476 code?

Driving with the P0476 code is not recommended, as it can lead to reduced performance, increased emissions, and potential damage to other engine components.

Q: How do I fix the P0476 code on a Ford vehicle?

Repairs may include cleaning or replacing the exhaust pressure control valve, repairing damaged wiring or connectors, or, in rare cases, reprogramming or replacing the PCM.

Q: Is the P0476 code specific to Ford vehicles?

No, the P0476 code is a generic OBDII code that can appear on various vehicles, but the specific causes and repairs may vary by make and model.

Q: How much does it cost to repair the P0476 code on a Ford?

Repair costs can vary depending on the issue, ranging from $100–$300 for cleaning or replacing the valve, and higher if wiring or PCM replacement is required.

Q: Can a dirty EGR system cause the P0476 code on a Ford?

Yes, a clogged EGR (Exhaust Gas Recirculation) system or restricted exhaust passages can contribute to the P0476 code.

Q: Do I need special tools to fix a P0476 code on my Ford?

Basic tools like a multimeter and OBDII scanner can help diagnose the issue, but specialized tools may be needed for exhaust system repairs or valve replacement.

Quick Answer

Exhaust Back Pressure Regulator - Is a variable position valve that controls exhaust back pressure during cold ambient temperatures to increase cab heat and decrease the amount of time needed to defrost the windshield. Common causes include Faulty Exhaust Back Pressure Valve, Exhaust Back Pressure Valve harness is open or shorted, Exhaust Back Pressure Valve circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P0476 Ford indicates Exhaust Pressure Control Valve 'A' Range/Performance.
Common causes: Common causes include Faulty Exhaust Back Pressure Valve, Exhaust Back Pressure Valve harness is open or shorted, Exhaust Back Pressure Valve circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 28,508

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 24, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0476 Ford Description

Exhaust Back Pressure Regulator - Is a variable position valve that controls exhaust back pressure during cold ambient temperatures to increase cab heat and decrease the amount of time needed to defrost the windshield. The Engine Control Module (ECM) uses the measured exhaust back pressure, (ambient) intake air temperature, engine oil temperature and engine load to determine the desired exhaust back pressure. Valve position is controlled by switching the output signal circuit to 12 volts inside the ECM. On/off time is modulated from 0 to 99 % dependent upon the exhaust back pressure desired.
Upon each initial engine start-up, the ECM exercises the exhaust back pressure valve by commanding it to cycle on and off once. If upon start-up the temperature of intake air sensed by the Intake Air Temperature (IAT) sensor is < 37°F (5°C) and the oil temperature sensed by the Engine Oil Temperature (EOT) sensor is between 32°-140°F (0-60°C) it will continue to keep the back pressure valve partially closed. As the oil temperature rises during engine operation, the ECM will control the valve in response to the rising oil temperature.

OBDII Code P0476 Ford - Exhaust Pressure Control Valve 'A' Range/Performance - AutoCodes.com — P0476 Ford Code - Exhaust Pressure Control Valve 'A' Range/Performance

What does this mean?

What are the Possible Causes of the DTC P0476 Ford?

Faulty Exhaust Back Pressure Valve
Exhaust Back Pressure Valve harness is open or shorted
Exhaust Back Pressure Valve circuit poor electrical connection

How to Fix the DTC P0476 Ford?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

Check the Exhaust Back Pressure Valve (EBPV) butterfly valve is opening and closing freely and not sticking. If it seems to move freely you can then check the connector and circuit for the EBPV solenoid.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0476 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0476 Ford code?

Need more information on how to fix the P0476 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0476 Ford code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0476 Ford Code

What does the OBDII code P0476 mean on a Ford vehicle?

P0476 indicates a problem with the Exhaust Pressure Control Valve 'A' not operating within the expected range or performance parameters.

What are the common symptoms of code P0476 in a Ford?

Common symptoms include reduced engine performance, poor fuel efficiency, black smoke from the exhaust, and possibly the Check Engine Light being illuminated.

What causes the P0476 code to appear in a Ford?

Possible causes include a faulty exhaust pressure control valve, clogged or restricted exhaust passages, damaged wiring or connectors, or a malfunctioning PCM (Powertrain Control Module).

How can I diagnose the P0476 code on my Ford?

Diagnose by inspecting the exhaust pressure control valve for damage, checking for clogged exhaust passages, and testing the electrical connections and wiring for continuity or corrosion.

Can I drive my Ford with the P0476 code?

Driving with the P0476 code is not recommended, as it can lead to reduced performance, increased emissions, and potential damage to other engine components.

How do I fix the P0476 code on a Ford vehicle?

Repairs may include cleaning or replacing the exhaust pressure control valve, repairing damaged wiring or connectors, or, in rare cases, reprogramming or replacing the PCM.

Is the P0476 code specific to Ford vehicles?

No, the P0476 code is a generic OBDII code that can appear on various vehicles, but the specific causes and repairs may vary by make and model.

How much does it cost to repair the P0476 code on a Ford?

Repair costs can vary depending on the issue, ranging from $100–$300 for cleaning or replacing the valve, and higher if wiring or PCM replacement is required.

Can a dirty EGR system cause the P0476 code on a Ford?

Yes, a clogged EGR (Exhaust Gas Recirculation) system or restricted exhaust passages can contribute to the P0476 code.

Do I need special tools to fix a P0476 code on my Ford?

Basic tools like a multimeter and OBDII scanner can help diagnose the issue, but specialized tools may be needed for exhaust system repairs or valve replacement.