why does my Honda Accord idle rough when stopped

Solution

1. Preparation

• Gather tools and parts required for repair.
• Park the vehicle on a level surface and ensure the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Spark Plugs

• Tools Required: Socket set, torque wrench, spark plug socket, gap gauge
• Remove the ignition coil or spark plug wire to access the spark plugs.
• Use a socket wrench to remove the old spark plugs.
• Inspect the old plugs for wear and compare them with specifications.
• Install new spark plugs, ensuring the gap is set to manufacturer specifications (typically between 0.044 inches to 0.050 inches).
• Torque the new spark plugs to the manufacturer-recommended specifications (usually around 13-16 ft-lbs).

3. Clean or Replace Throttle Body

• Tools Required: Throttle body cleaner, soft cloth, socket set
• Remove the air intake duct to access the throttle body.
• Use throttle body cleaner and a soft cloth to remove carbon buildup from the throttle plate and body.
• Reassemble the air intake duct securely.

4. Check and Repair Vacuum Leaks

• Inspect all vacuum hoses connected to the intake manifold for cracks or disconnections.
• Replace any damaged hoses.
• If necessary, perform a smoke test to identify hard-to-find leaks.

5. Test and Replace Fuel Filter (if applicable)

• Tools Required: Fuel line disconnect tool, wrench set
• Locate and disconnect the fuel lines from the fuel filter.
• Remove the fuel filter and inspect for blockages.
• Install a new fuel filter, ensuring the flow direction is correct.