well depends on the year and if it's a sohc or dohc, the single over head cam ones aren't bad , on these,it help to remove airbox, and washer resevoir, that took me about an hour on my 98 legacy2.2. i just gave up on changing them in my 98 forester 2.5 dohc , but just read a thread online, saying it helps a great deal to undo front motor mount, one side at a time then with a small piece of wood on a jack, crank up motor a couple inches to clear the frame rail, will try it tomorrow, although they say it is possible without lifting motor if you have a 1and1/2 and a 3 inch extension
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.
Have a look at ; www.carbasics.co.uk
you have to remove the washer bottle and the battery and the air duct then remove the coil packs then spark plugs easy
Changing spark plugs on a Subaru is no different from changing spark plugs on any other car. You may have to remove parts of the air induction system to make access easier. Be sure to check the gap on the new ones and use anti-seize on the threads.
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.
when do you change spark plugs
GO TO LEGACY GT .COM FOR THE COMPLETE INSTRUCTIONS
Follow recommendations in your owner's manual.
It is important to know the location of the spark plugs while owning a car. In a 2002 Subaru Impreza WRX there are spark plugs near the bottom of the engine block on each side of the car.
To change the spark plugs on a 1997 Subaru Outback, first, ensure the engine is cool and disconnect the negative battery terminal. Remove the engine cover if necessary, then carefully disconnect the ignition wires or coils from the spark plugs. Use a spark plug socket and ratchet to unscrew the old plugs and replace them with new ones, ensuring they are properly gapped. Finally, reconnect the ignition wires or coils and the battery terminal.
two spark plugs are located to the right side of the engine and the other two spark plugs are located on the left side of the engine.