Honda Accord 2.4L spark plug replacement at CARiD.com
If you hear a constant miss, it's time to replace the spark plugs.The spark plugs and wires on your Honda Accord need to be replaced.
Changing the spark plugs at the recommended 105,000 mileage interval is the best practice, however, if your engine codes are indicating misfire, check the plugs regardless of the mileage.The spark plugs are an important part of the engine.You may not see an improvement in gas mileage, but you can expect performance to increase and error codes to diminish.Changing out old plugs for new ones is the subject of this article.
The fix varies by engine.The distributor has wires leading to the plugs.V6 versions may have covers over the plugs, which have individual coils per plug, versus "distributing" the spark individually from a distributor.
Find the spark plugs by raising the hood.They are under the engine covers.The covers need to be removed from the engine.The covers are fastened with tabs.Don't break the tabs when disengaging them.
Remove the bolts from the ignition coil and the wiring harness.Remove the coils from the plugs.
The plug wires are located at the end of the engine block.Remove the covers and pull the plug wire from the boot.Don't pull by the wire.It might take some effort to break the seal on the boot.
The procedure is the same now that the plugs are accessible.The plug is from the engine block.If objects are in the way, use the extension to reach the plugs.You need a way to grasp the plug.This is handled by an insert in most sockets.If you have a bare sockets, insert a rolled up piece of paper near the top as shown in Figure 4.
Before you remove the spark plug, you should use a shop-vacuum or compressed air.The dirt cannot fall into the engine cylinder.
The plug gapping tool can be used to check and set the gap.The owner's manual has the gap specifications on it.The parts person can look at it for you.
Place the plugs into the spark plug sockets.The threads need to be protected first.The plug should be tightened to the recommended specification.You may damage the plug, the engine, or both if you tighten too much.If the engine sees a lot of road salt or dirt, use anti-seize and boot grease.
When you tighten the plugs, apply steady pressure.The plug's ceramic will break if you get off center or lever extremely hard.
The spark plugs for V6 models need to be replaced.Push them down until they sit.Use the bolts to tighten them down.
Push the boot over the plug and you will be able to seat the wires.You should be able to feel it.
Start the engine while the covers are off.No error codes are present if it is running smoothly.Check the connections if the engine isn't running well.Make sure the plug has the correct wire on it.Shut the car off if the engine is running well.You're good to go if you replace the covers.
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