how to fix P0174 code in Ford Explorer Sixth Generation (2020-present)

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, screwdrivers, fuel pressure gauge, cleaning solvent, multimeter.
• Disconnect the negative battery terminal to prevent electrical shorts during repairs.

2. Inspect and Repair Intake System

• Sub-steps:
  1. Visually inspect all intake hoses and ducting for signs of wear or damage.
  2. Replace any damaged hoses or clamps as necessary.
  3. Clean the MAF sensor using MAF cleaner; avoid touching the sensor with fingers or tools.

3. Test and Repair Fuel System

• Sub-steps:
  1. Connect the fuel pressure gauge to the fuel rail test port.
  2. Turn the ignition key to the "On" position (do not start the engine) to check the fuel pressure.
  3. Compare the reading to the manufacturer specifications (typically between 55-65 psi for most Ford vehicles).
  4. If pressure is low, check the fuel pump and filter for functionality and replace if necessary.

4. Check Exhaust System

• Sub-steps:
  1. Inspect exhaust manifold and pipes for leaks.
  2. Repair or replace any damaged gaskets or components.

5. Reassemble and Reconnect

• Reattach any removed components, ensuring all bolts and screws are tightened to the manufacturer's torque specifications.
• Reconnect the negative battery terminal.