since the engine cylinders are horizontally placed, the spark plugs are also in a horizontal position. the best way to find where the spark plug is located you follow the plug wire. start from the coil and follow that one wire and you will see that it is hooked on to somthingat the other end, and that is where the spark plug is. to change it you will have to pull the wire so that the plug is visible or touchable. you will need one of the two special spark plug sockets depending on the size of your spark plug, an extension rod and a rachet. if it is 4 cylinder then there should be 2 plugs on both sides giving a total of 4. i hope this helps :DAnswerSpark plugs on the Legacy EJ22 engine are mounted at approx 45 degree angle, faced up towards you, 2 plugs on each side. Work only on a COLD engine-- not started for 8 hours or more. Stand beside the right (passenger) tire, and follow the plug wires down from the coil. Find the big red rubber boot, remove by pulling out and up, remove spark plug using a 5/8 inch spark plug socket and an extension, replace with new plug (use anti-sieze on the threads), tighten until gasket begins compressing (resistance to turning), tighten approx 1/3 turn more, remove socket, re-install red rubber boot until you feel it "click". Do the other plugs, and done. Note-- the left side looks impossible, but the extension does indeed go straight down to the plug without trouble. The challenging part is removing the red rubber boots on the left side without breaking plastic things-- try reaching in from the back of the engine. Note-- avoid standard Autolite spark plugs, they tend to mis-fire. Platinum Autolites seem OK, as do just about everybody else's plugs. Verify spark plug gap before installing.
I find that removing the windshield washer reservoir (two screws) lifting and placing it to one side permits much easier access to the spark plugs on the left hand (driver side)
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If you have no spark on the 1991 Subaru Legacy, you should check the spark plugs and spark plug wires for replacement. You should also check the battery and ignition for replacement.
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.
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.
The spark plug gap for a 1995 Subaru Legacy is .044"
Have a look at ; www.carbasics.co.uk
when do you change spark plugs
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.
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.
Follow recommendations in your owner's manual.
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