AutoCodes – Ford – P0746 Ford

P0746 Ford Code - Pressure Control Solenoid Circuit

Quick Answer

The Pressure Control (PC) Solenoid Valve is an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty line pressure solenoid 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: P0746 Ford indicates Pressure Control Solenoid Circuit.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty line pressure solenoid 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.

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Code Popularity 7,067

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 30, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0746 Ford Description

The Pressure Control (PC) Solenoid Valve is an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. As current flow is increased, the magnetic field produced by the coil moves the solenoid’s plunger further away from the exhaust port. Opening the exhaust port decreases the output fluid pressure regulated by the PC solenoid valve, which ultimately decreases line pressure. The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM). The Diagnostic Trouble Code (DTC) will be set when the gear required by the Engine Control Module (ECM) does not match the actual gear when driving.

OBDII Code P0746 Ford - Pressure Control Solenoid Circuit - AutoCodes.com — P0746 Ford Code - Pressure Control Solenoid Circuit

What does this mean?

What are the Possible Causes of the DTC P0746 Ford?

Low transmission fluid level
Dirty transmission fluid
Faulty line pressure solenoid valve
Line pressure solenoid valve harness is open or shorted
Line pressure solenoid valve circuit poor electrical connection

How to Fix the DTC P0746 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

When a transmission solenoid is malfunctioned, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is dirty, it's recommended to change the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a mechanical transmission failure and that the transmission will need to be rebuilt or replaced.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0746 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.

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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 P0746 Ford Code

1. What are the common symptoms of OBDII code P0746 in a Ford vehicle?

- Common symptoms include harsh shifting, transmission slipping, decreased fuel efficiency, and illumination of the Check Engine Light.

2. What does the OBDII code P0746 Ford specifically indicate?

- This code specifically indicates a problem with the Pressure Control Solenoid Circuit in the transmission.

3. What are the possible causes of OBDII code P0746 in a Ford vehicle?

- Possible causes include a faulty pressure control solenoid, damaged wiring or connectors, low transmission fluid levels, or a malfunctioning transmission control module.

4. How can I diagnose the issue related to OBDII code P0746 in my Ford vehicle?

- Diagnosing the issue typically involves conducting a thorough inspection of the transmission system, checking the wiring and connectors, and using a scan tool to monitor the pressure control solenoid's operation.

5. Is it safe to continue driving with OBDII code P0746 present in my Ford vehicle?

- It is not advisable to continue driving with this code present, as it can lead to further damage to the transmission and potentially compromise the vehicle's drivability.

6. Can I repair OBDII code P0746 in my Ford vehicle on my own?

- Repairing this code may require advanced knowledge and tools, so it is recommended to consult a professional mechanic or transmission specialist for accurate diagnosis and repair.

7. How much does it typically cost to repair OBDII code P0746 in a Ford vehicle?

- The cost of repairing this code can vary depending on the specific cause of the issue, but it may range from $200 to $800 or more, including parts and labor.

8. Are there any preventive maintenance tips to avoid OBDII code P0746 in my Ford vehicle?

- Regularly servicing the transmission, checking and maintaining proper fluid levels, and addressing any unusual symptoms promptly can help prevent issues leading to this code.

9. Can resetting the Check Engine Light resolve OBDII code P0746 in a Ford vehicle?

- Resetting the light may temporarily remove the code, but if the underlying issue is not addressed, the code is likely to reappear once the problem persists.

10. How long does it take to repair OBDII code P0746 in a Ford vehicle?

- The repair time for this code can vary depending on the extent of the issue and the availability of parts, but it may take a few hours to a full day for a professional to diagnose and fix the problem.