Introdução
Changing the Spark Plugs and Ignition Coils is fairly easy process and can save you a lot of money doing it yourself.
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First you’ll need the spark plugs. I recommend searching Auto Zone or Amazon for the right plugs. You can get them cheap on Amazon. A set of 4 should cost you around $50.
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If you want to replace the ignition coils as well, you can find some on Amazon for around $50.
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You’ll need a deep 16mm spark plug magnetic socket to 3/8 drive. They’re between $10-$20.
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3/8 rachet, extensions, and a metric socket set. Pliers and metric wrench set.
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Have a small flat head screwdriver on hand
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3/8 torque wrench if you want to tighten the spark plugs correctly
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Open the hood and remove the dust cover on top of the engine.
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Remove the 4 grounding wires w/ nuts from each. Should be 10mm. You may need a wrench or needle nose pliers to hold the nut below the wire and use the socket to remove the top nut.
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Look all around the ignition coils wiring and find the tiny connectors that branch off. Disconnect all of them. There should be about 3.
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Some have a gray lock tab you have to pull like in the photo and then it slides right out. Others may need a screw driver to pry the black tab on the side gently till you hear a click and then slide off. Be very careful.
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Removing the wiring harness can be a pain, but it’s very straightforward. You have to press in the tabs till you hear it click. Then carefully jiggle the 4 connections out. There should be enough slack in the wire to pull them out.
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Once you have all 4 loose, you can move around the wiring while you remove ignition coils. Don’t bend the wire back as you may kink the wire resulting in a short.
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Take your 10 mm wrench or socket and remove the bolts holding the ignition coils in. Should be 4 of them.
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Pull out the ignition coils. They should just slide out easily. It’s just a rubber boot with a metal coil inside.
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Look down the hole and you’ll see the spark plug way down in there. Take your deep socket with an extension and slide it down in there and loosen the plug with the rachet.
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Note when removing the spark plug, you’re exposing the inside of the cylinder to the elements so don’t let anything fall in that hole. Immediately put in the new plug. You may want to put a little grease on the threads.
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Note spark plugs get corroded, that’s okay.
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Use the torque wrench to torque down the spark plug to 25 Nm.
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To reassemble your device, follow these instructions in reverse order.
