How to Repair a Spark Plug Wire

Changing spark plug wires can be done yourself.

Replacing a worn spark plug wire can be done yourself. Spark plug wires relay the spark from the distributor to the spark plug. These wires should be replaced during routine maintenance. Refer to your owners manual for replacement intervals. A worn spark plug will cause the engine to misfire. Elements within the engine compartment usually cause the spark plug to fail. A visual inspection can pinpoint a worn plug wire.

Things You'll Need

• Replacement spark plug wire
• Anti-seize

Instructions

1. Park the vehicle and allow the engine to cool. Open the hood by pulling the release lever located inside the vehicle.

2. Locate the spark plug wire. The wire connects to the distributor and the spark plug.

3. Remove the spark plug wire on the distributor side by grasping onto the end of the wire and pulling it off. The end of the spark plug wire is refereed to as the boot of the wire.

4. Remove the spark plug wire on the spark plug using the same technique.

5. Apply a small amount of anti-seize onto the spark plug tip before pressing the new spark plug wire onto the tip of spark plug with your hand.

6. Press the opposite end of the spark plug wire onto the distributor with your hands.

Tips & Warnings

• If you are replacing more than one spark plug wire, remove each wire one at a time to avoid confusion.

References

• Popular Mechanics: Replacing Spark Plug Wires