Simple job. You should have coil on plug, just un plug, take off the coil, and put the new one on. If you have the coil pack , just remove and put the new one on.
Sometimes changing a heater core can be a very big job. It is not changing the core that is hard, rather getting to it. Good luck.
On the top of the head underneath the coil-pack. Remove the coil pack {1 screw}and you will see the plug in the tube. Not a fun job when you get to the back plugs, better plan on a whole day.
There is no coil pack on these. Each cylinder has it's own coil which is mounted at the spark plug. It's a time consuming job and not just a simple tune up to do. If you have any mechanical skills it can be done.....it just takes time and patience.
The heater CORE is a big job. Get a manual on your car to do the job correctly.
Go to autozone.com then check out the repair guide. You probably will not like doing that job.
Just did this job on 2009 aveo grab the plastic engine cover on right side and pull up this will expose coil pack, unplug coil pack on right side it has a retaining clip which must be removed first then remove two allen bolts on coil pack, lift coil pack straight up which now exposes the spark plugs, remove old plugs put anti seize on new plugs, gap is .044 torque plugs to 18 ft lbs reinstall coil pack put allen bolts back in, plug coil pack in with retaining clip, snap plastic cover back on,you're done very easy job 20mins start to finish, by the way same engine in 2009and up g3 and suzuki swift so same instructions apply.
The coil packs are located behind the engin your will have to Jake up the car and get under it there is a mounting bracket on the back of the motor where the coil packs are mounted to the ignition control modual. there are 2 7/32 screws in each coil pack. or you can remove the whole bracket by 3 13mm bolts but this isent an easy job all of the screws and bolts are hard to get at you will need a couple different sized extentions and a swivle head to take them off and the job will take you about 2 to 3 hours to do.
Changing ignition coil on a Subaru consists of removing four capscrews, four sparkplug wires, and one clip-on electrical connector then putting the new coil in, attaching the wires and tightening the screws. No mystery here and the job is easier than changing wiper blades. Much easier. --Ken
BIG JOB Get a manual on your car from DISCOUNTAUTOREPAIRMANUALS/COM and it will have pictures and everything.
It's a big job! Get a manual on your car to do it right.
If I remember right. You should have coil packs covering the plugs. Look for screws holding the packs on. That should help to get you started.. There will be four 1/2 inch bolts mounted on the top of the coil pack. To tell you the truth it is easier if you take off the heater hoses from the top of the coil pack since they are in the way first. When you pull off the coil pack make sure to be aware that it does have an electrical connection that will not let you pull that coil pack to far from the spark plugs. Another recommendation is to replace your coil boots since you already did all the job. I really recommend for you to use champion spark plugs (regular resistor).