Engine-CodesFord – P0664 Ford

P0664 Ford Code - Intake Manifold Tuning Valve Control Circuit Low Bank 2

Quick Answer

The P0664 diagnostic trouble code (DTC) for Ford vehicles indicates a problem with the intake manifold tuning valve control circuit on bank 2. Common causes include Wiring issues or shorts in the intake manifold tuning valve control circuit, Faulty intake manifold tuning valve, Defective control module. 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
P0664 Ford indicates Intake Manifold Tuning Valve Control Circuit Low Bank 2.
Common causes
Common causes include Wiring issues or shorts in the intake manifold tuning valve control circuit, Faulty intake manifold tuning valve, Defective control module.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P0664 Ford Description

The P0664 diagnostic trouble code (DTC) for Ford vehicles indicates a problem with the intake manifold tuning valve control circuit on bank 2. This code specifically points to a low voltage condition in the circuit that controls the intake manifold tuning valve, which is responsible for adjusting the length of the intake manifold runners to optimize air flow and improve engine performance.

OBDII Code P0664 Ford - Intake Manifold Tuning Valve Control Circuit Low Bank 2
P0664 Ford Code - Intake Manifold Tuning Valve Control Circuit Low Bank 2

Common Causes of P0664 Ford

  1. Wiring issues or shorts in the intake manifold tuning valve control circuit
  2. Faulty intake manifold tuning valve
  3. Defective control module
  4. Engine computer system malfunction
  5. Poor electrical connections

Symptoms of P0664 Ford

  1. Reduced engine power
  2. Decreased fuel efficiency
  3. Rough idling
  4. Hesitation during acceleration
  5. Engine stalling

How to Fix P0664 Ford

  1. Begin by conducting a thorough inspection of the intake manifold tuning valve control circuit and associated components to identify the root cause of the issue.
  2. Test the voltage and continuity of the wiring in the circuit to pinpoint any shorts or faults that may be present.
  3. Check the intake manifold tuning valve for proper operation and replace it if necessary.
  4. Inspect the control module and engine computer system for any malfunctions or errors, addressing any issues found.
  5. Clear the DTC from the vehicle's computer system and test drive the vehicle to ensure that the problem has been resolved.

Cost to Fix P0664 Ford

The typical repair costs for addressing the P0664 code on a Ford vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, parts for this repair may range from $100 to $300, while labor costs can range from $150 to $400. Keep in mind that these estimates are rough approximations and actual costs may vary based on the location, vehicle make and model, and engine type. It is recommended to consult with a qualified mechanic or auto repair shop to get a more accurate estimate based on your specific circumstances.

When is the Code Detected?

The Engine Control Module (ECM) has detected a low signal from the Intake Manifold Tuning Valve (IMTV)

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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.

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