Just check this thread - it has pictures and a good description. http://www.scoobymods.com/forums/showthread.php?t=3017
Follow recommendations in your owner's manual.
6000 miles
Yes, you should replace the spark plugs in your Forester at the intervals recommended in your owner's manual.
New spark plugs and possibly plug wires.
You have a four-cylinder engine with one spark plug in each cylinder.
you dont
Generally, to replace spark plugs on a Subaru vehicle, the spark plug boot should be removed. Then, the old spark plugs should be removed using a socket wrench, and replaced with new ones.
use a bendy extension with your plug socket on the end. Available in a good socket set such as Teng-Tools. Dan,
Have a look at ; www.carbasics.co.uk
.0440
you have to remove the washer bottle and the battery and the air duct then remove the coil packs then spark plugs easy
the last time i changed the spark pluges in my 86 subaru gl wagon, i took the engine out. seriously, it needed a clutch at the time.