Other vehicles will have large wires attached to the spark plugs. Although procedures for.

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Clean the area around the plug with compressed air or a wet dry vacuum.

How to pull spark plugs. The shiny thing sticking out of the engine block after you remove the wire from the spark plug is the terminal of the spark plug. Some cop systems have a detachable rubber boot and spring. On some vehicles you ll have to remove an ignition coil for access to each spark plug.

Video tech tip on how to remove a spark plug wire on an engine. Never yank on the wire itself you can damage the wiring. Video tutorial on how to remove seized or hard to remove spark plugs.

Use your owner s manual to locate your engine s spark plugs at the top of each cylinder. Pull wires one at a time from the spark plug while engine is running. This applied to all types of spark plug wires found on vehicles recreational vehicles small engines etc.

If you are experiencing engine problems taking a look at your spark plugs is a good place to start. If your spark plugs are fouled or damaged it can lead to a host of problems including reduced gas mileage slow acceleration engine misfires and trouble starting the engine. Then rock the connector off the coil.

If motor idle speed drops for each wire pulled then the spark plug is firing correctly. The penetrating oil should help loosen any buildup and rust that are causing the spark plug to seize. Disconnect the ignition coil electrical connector by depressing or pulling up on the locking tab.

Next remove the coil hold down bolt and pull out the entire coil and boot assembly. The spark plugs are located near the top of the engine. Depending on your driving style or how your vehicle runs this can affect how much carbon build up is in the combustion chamber.

Spark plug troubleshooting test. Spray penetrating oil down the barrel of the spark plug so the oil creates a good coating around the plug. Grasp the wire by the boot rotate it and pull it off.

A collection of spark plug wires always pull from the boot not the wire. Look for any dirt buildup around the base of the wire. 1 gently grasp a spark plug wire by the boot the place where it connects to the spark plug twist it and pull it straight out.