my Ford Mustang S650 (2024-Present) won't start, just clicks, what's wrong

Solution

1. Preparation

• Ensure the vehicle is in park (for automatic) or neutral (for manual).
• Disconnect the negative battery terminal to prevent electrical shorts.
• Gather tools: multimeter, socket set, wrench set, battery terminal cleaner, and torque wrench.

2. Battery Inspection and Replacement

• Inspect Battery Terminals:

  • Clean any corrosion using a battery terminal cleaner.
  • Tighten loose connections.

• Battery Replacement (if necessary):

  1. Remove the battery hold-down bracket using a socket.
  2. Disconnect the positive terminal first, followed by the negative terminal.
  3. Remove the old battery from the compartment.
  4. Place the new battery in the compartment and connect the positive terminal first, then the negative terminal.
  5. Reinstall the hold-down bracket and torque to manufacturer specifications (usually around 10-15 ft-lbs).

3. Starter Motor Inspection and Replacement

• Inspect Starter Motor:

  1. Locate the starter motor (typically near the transmission bell housing).
  2. Check the electrical connections for tightness and signs of wear.
  3. Perform a voltage drop test across the starter terminals.

• Starter Motor Replacement (if necessary):

  1. Disconnect the battery again for safety.
  2. Remove the electrical connections from the starter motor.
  3. Unbolt the starter motor from its mounting (usually requires a socket).
  4. Install the new starter motor and torque bolts to manufacturer specifications (around 20-25 ft-lbs).
  5. Reconnect the electrical connections.