Repair 7

Basic Car Tune Up How to Remove Spark Plugs

The spark plug is a vital component in the operation of an internal combustion engine. As the name implies, the spark plug creates a spark that ignites gasoline inside a combustion chamber. This creates the energy to force the piston downward. The movement of the pistons gives the engine its power. To make sure that the engine operates as smoothly and efficiently as possible, it needs to be tuned up on a regular basis. An important part of that tune-up is removing and replacing the spark plugs, a process thats fairly straightforward.

Instructions

1

Make sure the engine is cool. The spark plugs are one of the hottest components of an engine.

2

Clean any dirt or debris from around the base of the plug to keep dirt from falling into the combustion chamber. Use compressed air to blow debris away if it is available.

3

Use your owners manual to find the spark plugs. Most engines have spark plugs wires that lead to the spark plugs. Newer engines may have individual ignition coils mounted over the spark plugs.

4

Remove the spark plug wire from the spark plug by pulling on the rubber boot. Do not pull on the wire itself. If equipped with ignition coils, remove the ignition coil mounting bolt to remove the coil and reveal the spark plug.

5

Install the spark plug socket on the socket wrench. You may need to use a swivel joint or a socket wrench extension to reach spark plugs in the back of the engine.

6

Place the socket over the spark plug and turn the socket wrench counterclockwise to loosen the spark plug. Use steady force to remove a stubborn plug. Too much force can shear off the top of a spark plug or strip the threads.

7

Continue to turn the wrench until the spark plug comes out of the hole. Once loosened, you should be able to remove it by hand.