my Ford F-150 14th Generation (2021-2024) has a rough idle when cold what can I do

Solution

1. Preparation

• Gather tools and parts needed.
• Disconnect the battery to prevent electrical shorts.
• Allow the engine to cool down before working on components.

2. Check and Replace Spark Plugs

• Remove the spark plug wires or ignition coil packs carefully.
• Use a spark plug socket to remove the spark plugs.
• Inspect the condition of the spark plugs; replace if worn or fouled.
• Install new spark plugs with the recommended gap (typically 0.030 inches for F-150).
• Reattach the ignition coils or spark plug wires.

3. Inspect and Replace Air Filter

• Locate the air filter housing and remove the clips or screws securing it.
• Remove the old air filter and check for obstructions or dirt buildup.
• Install a new air filter, ensuring it fits snugly and seals properly.

4. Clean the Throttle Body

• Disconnect the throttle body connector and remove the throttle body from the intake manifold.
• Clean the throttle body using throttle body cleaner and a soft cloth, especially around the throttle plate.
• Reinstall the throttle body, ensuring the gasket is intact.

5. Test and Replace Engine Coolant Temperature Sensor (if necessary)

• Unplug the coolant temperature sensor electrical connector.
• Use a multimeter to test the resistance of the sensor against manufacturer specifications.
• If faulty, replace the coolant temperature sensor and reconnect the wiring.