Possible wrong heat range of plug. Make sure you have the right plugs for the vehicle.
they could be bad spark plugs as in not a very good brand. or maybe you didn't put the wires back on the right spark plug.
try changing the spark plugs
no, change your spark plugs
NGK platinum plugs
Obviously- the spark plugs were not the issue :)
Yes, fouled spark plugs can cause engine shaking, and loss or power. I'm not sure about knocking but I'd guess that too.
It could be caused by not getting the spark plug boot on quite right after replacing the plug wires.
Only if there's something wrong with your old spark plugs.
Changing your spark plugs could theoretically make your car faster but not enough to make a noticeable difference. Changing your spark plugs when they are worn will increase your fuel mileage slightly.
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Changing spark plugs can be an easy task. Disconnect the battery and the spark plug cables, remove the old spark plugs, replace with the new spark plugs, connect the spark plug cables and the battery.
Changing spark plugs is an important task. To do this, disconnect the battery and spark plug cables, and remove the old spark plugs. Next put in the new spark plugs, and reconnect the spark plug cables and then the battery.