I have a 1990 Lumina Euro, 3.1 and there are 2 ways to change the plugs. The first is what some mechanics do, by rotating the engine forward and blocking it that way while they change the plugs, which is the way they changed mine the other day. The other way is the way I change them, which is to remove the alternator and then you can get to the back plugs fairly easily without having to go through the hassle of rotating the engine forward. I prefer this way myself and I usually chane my own plugs, but I had to have some other work done on mine so I let them change the plugs and wires since I need it worked on while I was working. The front plugs and wires are easy to get to. Use sparkplug pliers to get the wires off the plugs. Hope this helps.
Spark Plugs on a LuminaSee the related questions to the right. HOW DO YOU CHANGE THE SPARKS PLUGS ON A 1993 CHEVY LUMINA APV 3.8L 231-V6 ENGINE (an van)
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The engine can be moved forward slightly.
you dont rotate it you have to pull the altnator off to change them
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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.
you are not getting spark. this could be from a bad alternator, bad spark plugs, bad spark plug wires, or bad engine coils. The spark plugs and wires are the cheapest so try putting in new ones of those first.