how to fix P0750 code on Ford F-150 12th Generation (2009-2014)

Learn how to diagnose and fix P0750 transmission issues in Ford F-150 (2009-2014). Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Wiring/Connectors

• Tools Required: Socket set, wire connectors
• Remove any protective coverings to access the wiring harness.
• Inspect the wiring for frays or breaks and replace any damaged sections with quality wire connectors.
• Ensure all connectors are securely attached and free from corrosion.

3. Check and Replace Shift Solenoid A

• Tools Required: Socket set, torque wrench, transmission jack
• Raise the vehicle and securely support it with jack stands.
• Locate the shift solenoid A on the transmission.
• Remove the electrical connector from the solenoid.
• Unbolt the solenoid from the transmission, taking care to note the position of any mounting screws.
• Install the new solenoid by aligning it correctly and securing it with bolts to the manufacturer's torque specifications.
• Reconnect the electrical connector.

4. Inspect and Replace Transmission Range Sensor

• Tools Required: Socket set, screwdriver set
• Locate the transmission range sensor on the transmission.
• Disconnect the electrical connector and unbolt the sensor.
• Carefully remove the sensor, taking note of the alignment.
• Install the new sensor, ensuring it is aligned correctly, and reattach the mounting bolts.
• Reconnect the electrical connector.

5. Refill Transmission Fluid

• Tools Required: Funnel, transmission fluid (as specified in the owner's manual)
• Check the fluid level through the dipstick tube and add fluid as necessary, ensuring it meets the manufacturer's specifications.
• Start the engine and let it run for a few minutes, then check the fluid level again, topping off if needed.

6. Reconnect Battery and Test Drive

• Reconnect the negative battery terminal.
• Start the vehicle and allow it to reach operating temperature.
• Test drive the vehicle to ensure proper shifting and that the Check Engine light does not illuminate again.