why does my Ford Explorer's engine overheat when sitting in traffic

Solution

1. Preparation

• Gather tools and materials: coolant, socket set, screwdriver set, and a thermometer.
• Ensure the engine is cool before beginning work to prevent burns.
• Disconnect the battery to ensure safety while working on electrical components.

2. Check and Replenish Coolant

• Locate the coolant reservoir and check the level.
• If low, add the appropriate type of coolant until it reaches the proper level.
• If the radiator is accessible, remove the cap and top off the radiator as well.

3. Inspect and Replace Thermostat

• Remove the thermostat housing using a socket set.
• Take out the old thermostat and inspect it for functionality. If it appears stuck or damaged, replace it with a new one.
• Reinstall the thermostat, ensuring the gasket is properly seated, and tighten to manufacturer specifications.

4. Test and Replace Cooling Fan

• Start the engine and let it reach operating temperature.
• Observe the cooling fan(s) for activation. If not operational, test the fan motor with a multimeter.
  • If the motor is faulty, remove the fan assembly and replace it with a new one.
• Reconnect the battery after repairs.

5. Flush the Cooling System

• Drain the existing coolant from the radiator and engine block.
• Flush the system with a cooling system cleaner, following the product instructions.
• Refill with a fresh mixture of coolant and distilled water according to manufacturer specifications.