I cannot find the spark plugs on my 2002 galant.

Look more closely at the 1 and 4 coil, also, check for trigger signal to these coils. I mostly suspect the trigger unit.

you have to check spark from the plug....step1 pull out one of the plug wire step2 put one spark plug into the plug wire. step3- clip the plug body with jumper cable and the other to the negative(-)terminal step4 start the car and see if there is strong spark on the tip of the plug

ignition controller (computer) - easy to check. hook up one or two of the old coils with old spark plugs. make sure plugs are touching metal on the motor (for grounding), have someone crank starter while you CAREFULLY observe plugs, you should see spark at plugs. if spart, i'd check for timing sensor problems, if no spark then problem is in ignition computer.

Sounds like you need to replace the valve cover gasket. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Sounds like ignition module may have gone out. No test for this.

Did you check the main electronic component, the ECU, to see if it's functioning as it should?

Unbolt them with a long extension on a socket wrench and a spark plug socket. Best not to try attaching multiple extenders to reach because a pain to get off the new plugs after tightening

most new cars will go a long way without change.. on that car 60K miles and you need to change

it could be the spark plugs, at least that is what it was for mine, if you have over 50k miles without a spark plug change i highly suggest one, also a oil /transmission change would be great for your car too if you haven't done those reciently. I would also suggest using a higher grade gas, sometimes this fixes the trick too.
If you try all those and still experiencing hard transitions please let me know and i'll try a more indepth analysis on your car.
Thanks jyotsna.

Has it overheated lately?
My wife overheated our Galant and it just stopped working, it cranks but that's it.
I pulled the sparkplugs and found them wrapped in a gewey jelly like substance. Like an oil/antifreeze combo.
I am going to replace the entire motor for $1000 as taking it to the mechanics to theorize and practice may cost more.