How to Replace the Spark Plugs in an Astro Van

A spark plug creates a spark inside an engine cylinder for the fuel to burn. Spark plugs should be changed according to the manufacturer's recommendations. Over time, spark plugs will burn out. Symptoms of bad spark plugs can range from hard starting to poor fuel economy. By following these steps, you will be able to change the spark plugs in your Astro van in an afternoon.

Things You'll Need

• Ratchet
• Spark plug socket
• Socket extension
• Replacement spark park

Instructions

1. Buy the replacement spark plugs at your local auto parts store.

2. Locate each spark plug wire. Replace each spark plug one at a time to avoid mixing plug wires.

3. Remove the plug wire by grasping the wire firmly and pulling. Remove the spark plug with a spark plug socket and ratchet.

4. Replace the spark plug. Attach the plug wire by pushing it onto the spark plug. You should be able to feel the wire seat onto the spark plug.

5. Continue until all spark plugs have been changed. Double check for any loose plug wires before starting the vehicle.

Tips & Warnings

• Be careful when inserting a new spark plug. Be sure not to cross thread the plug.

References

• Chevrolet Information: spark plug information