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Engine-Codes – Ford – P1443 1999 Ford F150

P1443 1999 Ford F150 Code - Evaporative Emission System Control Valve Low/No Flow

Quick Answer

The P1443 diagnostic trouble code (DTC) for a 1999 Ford F150 indicates a problem with the Evaporative Emission System Control Valve having low or no flow. Common causes include Faulty Evaporative Emission System Control Valve, Clogged or Damaged Evaporative Emission System Hose, Malfunctioning Purge Valve. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1443 1999 Ford F150 indicates Evaporative Emission System Control Valve Low/No Flow.
Common causes
Common causes include Faulty Evaporative Emission System Control Valve, Clogged or Damaged Evaporative Emission System Hose, Malfunctioning Purge Valve.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P1443 1999 Ford F150 Description

The P1443 diagnostic trouble code (DTC) for a 1999 Ford F150 indicates a problem with the Evaporative Emission System Control Valve having low or no flow. The evaporative emission system is responsible for capturing and storing fuel vapors from the fuel tank to prevent them from escaping into the atmosphere. The control valve regulates the flow of vapors into the engine for combustion.

OBDII Code P1443 1999 Ford F150 - Evaporative Emission System Control Valve Low/No Flow
P1443 1999 Ford F150 Code - Evaporative Emission System Control Valve Low/No Flow

Common Causes of P1443 1999 Ford F150

  1. Faulty Evaporative Emission System Control Valve
  2. Clogged or Damaged Evaporative Emission System Hose
  3. Malfunctioning Purge Valve
  4. Leak in the Evaporative Emission System
  5. Electrical Wiring or Connector Issues

Symptoms of P1443 1999 Ford F150

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Reduced Fuel Efficiency: A decrease in fuel efficiency may be noticed due to improper flow of fuel vapors through the system.
  3. Rough Idle: The engine may experience rough idling or hesitation during acceleration.
  4. Strong Fuel Odor: A strong smell of fuel vapors may be present inside or outside the vehicle.
  5. Failed Emissions Test: If the issue is not resolved, the vehicle may fail an emissions test due to increased emissions.

How to Fix P1443 1999 Ford F150

  1. Diagnose the Issue: Use a scan tool to retrieve the DTC and pinpoint the exact cause of the problem.
  2. Inspect Components: Check the control valve, hoses, purge valve, and system for any signs of damage or leaks.
  3. Replace Faulty Parts: Replace the control valve, hoses, purge valve, or any other components that are found to be faulty.
  4. Clear DTC: Clear the DTC from the vehicle's computer using the scan tool.
  5. Test Drive: Take the vehicle for a test drive to ensure that the issue has been resolved and that the check engine light does not reappear.

Cost to Fix P1443 1999 Ford F150

The typical repair costs for addressing a P1443 code on a 1999 Ford F150 can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. This estimate includes the cost of replacing components such as the control valve, hoses, or purge valve, as well as the diagnostic time and labor required for the repair. It's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle specifics.

What does this mean?

Tech Notes for P1443 1999 Ford F150

Check for blockages between the fuel tank, the EVAP Canister Purge Solenoid Valve, and the engine intake manifold. Check for obstructions in the EVAP Canister Purge Solenoid Valve diaphragm and ports.

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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 P1443 1999 Ford F150 Code

1. What are the common symptoms of OBDII code P1443 in a 1999 Ford F150?

- Common symptoms include the check engine light coming on, rough idle, decreased fuel efficiency, and a noticeable gasoline smell.

2. What does the OBDII code P1443 in a 1999 Ford F150 indicate?

- The code P1443 indicates a problem with the Evaporative Emission System Control Valve Low/No Flow.

3. What are the possible causes of OBDII code P1443 in a 1999 Ford F150?

- Possible causes include a faulty evaporative emission control valve, a broken or disconnected vacuum line, a malfunctioning charcoal canister, or a loose gas cap.

4. How can I diagnose the OBDII code P1443 in my 1999 Ford F150?

- Diagnosing the code involves checking the integrity of the vacuum lines, inspecting the evaporative emission control valve, and testing the charcoal canister for leaks.

5. Can I still drive my 1999 Ford F150 with OBDII code P1443?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to prevent further damage and reduce emissions.

6. How can I repair OBDII code P1443 in my 1999 Ford F150?

- Repairing the code may involve replacing the evaporative emission control valve, repairing or replacing damaged vacuum lines, checking and replacing the charcoal canister if necessary, and ensuring the gas cap is properly tightened.

7. Is it possible to reset the OBDII code P1443 in a 1999 Ford F150?

- Yes, the code can be reset using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes. However, it is important to address the underlying issue causing the code before resetting it.

8. How much does it cost to fix OBDII code P1443 in a 1999 Ford F150?

- The cost of fixing the code can vary depending on the specific issue, but it may range from $100 to $500 or more, including parts and labor.

9. Will OBDII code P1443 cause my 1999 Ford F150 to fail emissions testing?

- Yes, having this code present can cause your vehicle to fail emissions testing, as it indicates a problem with the evaporative emission control system.

10. How often does OBDII code P1443 occur in a 1999 Ford F150?

- This code can occur sporadically or more frequently depending on the condition of the vehicle's evaporative emission system. Regular maintenance can help prevent its occurrence.

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