removing the lid (module tower): remove the bolts and pull up gently to separate the spark plug boots,(boots are connected and a part of the module) from the plugs below. Remove the four plugs below with a standard spark plug socket with a long extention and ratchet. probably should use 1/2 " drive.
When putting the tower back over the plugs, be carefull that you possition the boots evenly(making sure they slide on the plugs straight), while pushing down on the module.
Looking at the top of the valve cover there is a cover in the center. The spark plugs are right below that cover.
Four
6 spark plugs 1 spark plug to every cylinder.
The spark plugs are on the front and back of a V6 (back ones are tough to get to) L4 right in front. Turn the engine off and take off the spark wires unscrew the plugs
when do you change spark plugs
Their is no 1993 olds alero the first year is the 1999 sorry.
It is located over the cylinder head.
either wrong spark plugs or sparkplug gap or you have to plug wires on wrong plugs
To change the spark plugs in a 1997 astro van do I have to change the spark plugs from the bottom of the engine/
on my 2002 alero I havw the 2.2 4cylinder ecotec engine, on the intake there is a cover that says 2.2, remove the four bolts and the plugs are down in the little cylinder holes mine require a 5/8 spark plug socket and you will also need an extension.
How to change the spark plugs
how to change spark plugs on a 2001 expedition