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There is an article with video on how to change spark plugs at ; http://www.carbasics.co.uk Look in their 'how to' section.
Change the Spark plugs, if not bin it
remove the spark plug wires one at a time and unscrew the plugs
Remove the spark plugs wire and remove the plugs wit a spaerk plug wrench or socket.
Spark plugs are easy to change. One disconnects the batter and spark plug cables, and removes the old spark plugs. Next a person puts in the new spark plugs, then reconnects spark plug cables and the battery.
Where are the spark plugs on a 1996 Nissan maxima?"
platinum plugs 75,000 miles. resistor plugs 30,000.
How can I change the wiring and spark plugs on my 1996 Cadillac Sedan Deville Concours?
Could be as simple as fouled spark plugs.
With a spark plug socket and socket wrenches and extensions.
Take the engine cover off, and there are three plugs in the front of the engine and three in the back. They are not that difficult to get to. The hardest part can be getting the boots off - be careful not to rip them or you will have to replace the wires as well.
Remove your front tires and look up under the fender cowel and you sill see the sparks plugs. I have to change mine and when I changed my Ball Joints I notice that that will be the easiest way to get to them. That and a long extension