2004 - 2008 Acura TSX (CL9) Spark Plug Replacement

Step 1

Opening the hood

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• Locate the hood latch beside the driver's side door, right next to the left foot rest.
• Pull the latch, should here a pop noise to know the hood has unlatched.
• Walk in front of the car, reach your hand under the front of the hood to locate the latch.
• Prop the latch and locate the spark plug cover.

Step 2

Removing the cover

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• Remove the cover where the Spark Plugs are located
• Use a 10 mm hex driver or socket to remove the four screws that hold the spark plug cover in place
• Follow the Green circles

Step 3

Remove the Spark Plug Wires

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• Use a 10 mm hex driver or socket to remove the four screws that are holding the Spark Plug wires in place.
• Remove the spark plug wire by pinching the locking tabs on either side of it and pulling it out.

Step 4

Remove Clips From Ignition Coil

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• Once clips are removed,
• Pull the remove the Ignition Coil out and place them in order the way you have pulled them out.
• You should see 4 holes where the spark plugs are located.

Step 5

Remove Spark Plugs

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• Locate the spark plug at the bottom of the bore.
• Use a ratchet, extension, and 5/8 socket to remove the plug by turning counterclockwise until it's free.
• You can use a spark plug socket for an easier removal.

Step 6

Repair step

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• Pull the plug out of the bore.
• Use a ratchet, extension, and 5/8 socket to remove the plug by turning counterclockwise until it's free.

Step 7

Repair step

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• Determine if the spark plug needs to be replaced by examining the gap for the problems listed below:
• The gap is bridged by corrosion.
• The gap is too large.
• The area around the gap is black and dark.
• If the spark plug doesn't need to be replaced, return it to the spark plug bore. If it does need to be replaced, use a new one.
• Use a ratchet, extension, and 5/8 socket to tighten the spark plug by turning clockwise. Use your hand to tighten as well.

Step 8

Tip

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• If you don't want to purchase a spark plug socket.
• you can use a regular 16 hex mm socket.
• Have a magnetic extension pen to gently connect the spark plugs and remove it out the bore.

Step 9

Repair step

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• Repeat steps from 6-8 removing each plugs and checking if they are bad.
• Once you double check each spark plugs. Reverse steps and make sure bolts are tight and spark plug wires are snapped in perfectly.
• You have completed Spark plugs removal for Acura TSX.