how to fix Ford F-150 13th Generation (2015-2020) engine knocking noise

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the battery to ensure safety during repairs.

2. Change Engine Oil and Filter

• Sub-steps:
  1. Remove the oil drain plug and let the old oil drain completely into a catch pan.
  2. Replace the oil filter using an oil filter wrench, lubricating the rubber gasket on the new filter with fresh oil before installation.
  3. Reinstall the oil drain plug and torque to the manufacturer’s specifications (typically around 20-25 lb-ft).
  4. Fill the engine with the recommended oil type (typically 5W-20 or 5W-30) until it reaches the appropriate level on the dipstick.

3. Inspect and Replace Worn Components

• Sub-steps:
  1. If the knocking noise persists, inspect the timing chain or belt. Remove any necessary covers to access these components.
  2. Check for wear or slack in the timing components; replace if necessary.
  3. Inspect the valve lifters and rocker arms for signs of wear. Replace any damaged components.
  4. If internal engine wear is indicated (from compression test), consider replacing bearings or rebuilding the engine.

4. Reassemble and Test

• Sub-steps:
  1. Reinstall any covers or components removed during inspection.
  2. Reconnect the battery.
  3. Start the engine and listen for any remaining knocking or abnormal noises.
  4. Take the vehicle for a test drive to ensure normal operation and confirm the noise has been resolved.