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There is one per cylinder. Most of the 2003's have a flat, opposing 4 cylinder engine. The plugs can be very hard to get to with the engine installed but with patience and a little ingenuity it can be done. You'll need to make good use of short extensions and wobbles (universals) but it can be done.
If you have the six it is easier. You'll know if you have the six cylinder because it is emblazzoned on the back of the car.
What else can I help you with?
How many spark plugs in a 2003 Subaru Forester xt?
You have a four-cylinder engine with one spark plug in each cylinder.
What is the spark plug gap on a 2003 Subaru Forester xs?
.0440
How many valves does the 2003 Subaru Forester have?
The 2003 Subaru Forester has 16 valves.
What size engine does the 2003 Subaru Forester have?
The 2003 Subaru Forester has a flat 4 engine.
What kind of transmission does the 2003 Subaru Forester have?
The 2003 Subaru Forester has a 5-speed manual.
Is the 2003 Subaru Forester electric or gas?
The 2003 Subaru Forester is a gas-powered vehicle.
Where are the spark plugs on a 2003 Subaru Imperza WRX?
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.
What is the curb weight of the 2003 Subaru Forester?
The curb weight of the 2003 Subaru Forester is 3090 lbs..
How long is the 2003 Subaru Forester?
The 2003 Subaru Forester is 14 ft. 7.2 in. (175.2 in.) long.
What is the cam type of the 2003 Subaru Forester?
The 2003 Subaru Forester has single overhead cam (SOHC).
What kind of fuel does the 2003 Subaru Forester use?
The 2003 Subaru Forester runs on regular unleaded.
What is the drag coefficient of the 2003 Subaru Forester?
The 2003 Subaru Forester has a drag coefficient of 0.35 Cd.
