my Ford Explorer's engine shakes at idle what's causing it

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface, and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shock.

2. Check and Replace Spark Plugs

• Tools Required: Socket set, spark plug socket, torque wrench
• Remove the ignition coils by unplugging the electrical connectors and unbolting them.
• Use a spark plug socket to carefully unscrew the old spark plugs from the engine.
• Inspect the old plugs for wear; replace with new ones if necessary, ensuring the gap is set according to manufacturer specifications.
• Reinstall the spark plugs and ignition coils, torquing them to the manufacturer's specifications.

3. Inspect and Replace Engine Mounts

• Tools Required: Socket set, jack and jack stands
• Lift the front of the vehicle with a jack and secure it with jack stands.
• Locate the engine mounts and visually inspect for cracks, tears, or signs of failure.
• If damaged, remove the bolts securing the engine mount to the frame and engine.
• Replace with new engine mounts and securely fasten them according to manufacturer torque specifications.

4. Clean Throttle Body

• Tools Required: Throttle body cleaner, soft cloth, screwdriver
• Remove the air intake duct to access the throttle body.
• Spray throttle body cleaner onto a soft cloth and wipe the inside of the throttle body to remove carbon buildup.
• Ensure the throttle plate moves freely without obstruction.
• Reattach the air intake duct securely.

5. Inspect Fuel Injectors

• Tools Required: Fuel injector cleaning kit (if necessary), O-rings
• If the injectors are clogged, use a fuel injector cleaning kit to clean them or replace them if they are faulty.
• Ensure new O-rings are installed for proper sealing.