my Ford Explorer makes a whining noise when I accelerate what could be wrong

Solution

1. Preparation

• Gather tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the battery to avoid electrical shorts.

2. Check and Replace Transmission Fluid

• Tools Required: Socket set, transmission funnel, fluid catch pan
• Sub-steps:
  1. Locate the transmission fluid dipstick and remove it.
  2. Check fluid level; if low, add the manufacturer-recommended fluid.
  3. If fluid is dark or has a burnt smell, consider a transmission fluid change.
  4. Drain the old fluid using a catch pan, then refill with new fluid per manufacturer specifications.

3. Inspect and Replace Serpentine Belt

• Tools Required: Belt tensioner tool
• Sub-steps:
  1. Locate the serpentine belt routing diagram, usually found on a sticker in the engine bay.
  2. Use the tensioner tool to relieve tension on the belt.
  3. Remove the old belt and inspect pulleys for damage.
  4. Install a new serpentine belt, ensuring proper routing and tension.

4. Examine and Replace Alternator or Power Steering Pump (if necessary)

• Tools Required: Socket set, multimeter
• Sub-steps:
  1. Disconnect any electrical connectors from the alternator or power steering pump.
  2. Remove mounting bolts and detach the component from the engine.
  3. Test the alternator output with a multimeter; it should be between 13.8 to 14.4 volts.
  4. If faulty, install a new alternator or power steering pump as needed.

5. Inspect Drive Axles

• Tools Required: Jack and jack stands, socket set
• Sub-steps:
  1. Lift the vehicle using a jack and secure it with jack stands.
  2. Inspect the drive axles for any visible damage or wear.
  3. If damaged, replace the affected axle.