I am attempting to change spark plugs on my 2001 ford focus. however the plugs are not really visible but rather down in a narrow shaft. What now?

spark plugs good

Te first thing to do is to locate the noise source. You can do it with a long screw driver touching the tip on the engine and the holder at your ear. A needle stethoscope can do the job better. The noise might be a overhead cam tick, crank shaft knock, bad bearing or anything else.Hope this will help to narrow the problem.

oil filter-engine oil-air filter-spark plugs is the typical 8-10.000km service.

Replace spark plugs first then look for white arcing marks around coils and ignition leads, replace if any arcing marks are showing.Could run car at night and look for any electrcal tracking around coils and leads much more visible in dark condition.

had the same thing with my crown vic on the #8 cylinder. changed plugs and wires. still missing. wound up replacing the coil pack. you can check resistence of the coil between companion spark plug towers. ford marks each tower with 2 cylinder #'s. resisistence should be around 10-12 ohms

lol, I never knew they made a sohc focus, 99% of these are zetecs DOHC. so they have the spark plugs down the middle of the cyliderhead.

check you put the same rated plugs in as there are a few different types they are rated from a cold plug to a hot plug which basically means the run better at the set temp

Can you explain more so I can help. What do you mean still wont turn on, engines doesn't start or starter motor doesn't turn. Have u taken out a spark plug and connected it to the cable put the end of the spark plug to a ground and make someone turn on the engine for a few seconds you should see some blue sparks. Carefully use gloves. If no sparks, spark plug is bad next thing to check instead of putting the spark plug in the cable put Philips screwdirver put the screwdriver near a ground not touching about one inch make someone turn the engine for a couple of second you should see the spark jumping from the screwdriver to the ground, If there are no sparks ignition coil or spark plug cables are not good. But u say u changed ignition coil so maybe your cables are not good. There is a connector near the ignition coil disconnect it and turn ignition switch on measure the voltage you should have in between 12vdc + or - .5 vdc if no voltage present there is a blown fuse, Check for it

2.0L SOHC (single overhead cam) AGSF34EE plugs gap 0.054
2.0L DOHC (dual overhead cam) AZFS32FE plugs gap 0.050

The plug numbers are the motordraft numbers

check the pick up sensor