2001 Toyota Corolla, with just over 100K miles. I keep it maintained, and it will last another 100K, for sure.
But, it's ready for spark plugs (the oil change place showed me the plugs, and they are getting dirty).
I am fairly handy with fixing things -- not afraid of power tools and getting dirty... but need kind of STEP by STEP instructions.
What tools do I need?
Recommend brands of plugs?
Hints for getting them out, inserted and set correctly?
I was advised to unplug the cap, so that I can draw them out straight. To work on a cold engine if possible. And, most important, to be careful not to cross the threads - either in or out.
But, how difficult is it to set (is it called gapping?) them correctly so that the currently smooth-running engine, keeps running smoothly?
And, last, if I do something wrong, how do I trouble shoot?