how to diagnose power steering pump noise in Ford F-150 12th Generation (2009-2014)

Solution

1. Preparation

• Gather tools including a socket set, torque wrench, fluid catch pan, and a flashlight.
• Ensure the vehicle is on a level surface and the engine is off before starting work.

2. Replace Power Steering Fluid

• Sub-steps:
  1. Place a fluid catch pan under the power steering pump.
  2. Remove the power steering fluid reservoir cap.
  3. Use a turkey baster or suction pump to remove old fluid from the reservoir.
  4. Refill the reservoir with the recommended power steering fluid (check owner’s manual for specifications).

3. Inspect and Replace Power Steering Pump

• Sub-steps:
  1. Disconnect the negative battery terminal.
  2. Remove the serpentine belt from the power steering pump pulley (note the routing).
  3. Disconnect the power steering lines from the pump using a wrench; be prepared for fluid spillage.
  4. Unbolt the power steering pump from its mounting using the socket set.
  5. Replace the old pump with a new or remanufactured unit, ensuring it is properly seated.
  6. Reconnect the power steering lines and torque them to the specifications listed in the repair manual.
  7. Reinstall the serpentine belt, ensuring proper tension and alignment.

4. Bleed the Power Steering System

• Sub-steps:
  1. Refill the power steering fluid reservoir.
  2. Start the engine and turn the steering wheel from lock to lock several times to purge air.
  3. Check fluid level and top off as necessary.