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Subaru
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2003
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Impreza WRX, 4D Wagon, Automatic
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Repair and Diagnosis
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Engine Performance
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Ignition System
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Ignition System - DOHC/TC
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Spark Plug
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Removal
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RH Side
RH Side
Disconnect the ground terminal from battery.
Fig 1: Disconnecting Ground Terminal From Battery
Courtesy of SUBARU OF AMERICA, INC.
Remove the air cleaner lower case, see
REMOVAL
, Air Cleaner.
Disconnect the connector from ignition coil.
Fig 2: Disconnecting Connector From Ignition Coil
Courtesy of SUBARU OF AMERICA, INC.
Remove the ignition coil.
Fig 3: Removing Ignition Coil
Courtesy of SUBARU OF AMERICA, INC.
Remove the spark plugs with the spark plug sockets.
Fig 4: Removing Spark Plugs
Courtesy of SUBARU OF AMERICA, INC.