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2002 Honda Civic

How to perform a Spark Plug Change

Estimated time to complete: 30 minutes

The following article describes the necessary tools, equipment and process to perform a spark plug replacement on a Honda Civic.

Items Needed	Tools Required
4 Spark Plugs (We use Bosch 4301 Platinum +2 because we're too lazy to gap the plugs) Antiseize Lubricant	Flat head Screwdriver 10 mm Socket or spanner Spark Plug socket 7" or 10" socket Extension Shop Towels Nitrile Gloves

Step 1: The Civic has a protective plastic cover over the top of the engine. It's held in place by two plastic fasteners. Undo these carefully by rotating them 90 degrees with the screwdriver. Set the cover aside.
Step 2: This model is has a specific ignition coil for each spark plug and they are directly connected to the spark plug. The coil is held down by a 10mm bolt.
Step 3: Remove the bolt with the socket wrench / spanner.
Step 4: The Civic also has a plastic snap fitting that connects the coil to the ignition harness. Carfully press down on the release tab (on the driver's side of the connector) and wiggle the plug to release it. You'll have to pop the coil loose of the spark plug to have enough clearance for removal. These plastic connectors become progressively more fragile with time, so always be careful.

Step 5: Use the spark plug socket, extension and rachet to loosen the plug. Then spin it loose by hand. It should only have tension on the first turn and then be easy to spin.

Step 6: Always check your spark plugs. The condition of the plug is indicative of the overall health of the motor. This plug is in relatively good condition, but shows wear. We opted (since we've already bought them) to replace the plugs.
Step 7: Put anti-sieze on the new plug and then thread it into the block. The rest of the process is simply the reverse of removal. From there, repeat the overall process for the remaining three spark plugs and you're finished.

You're done! double check your work and take the car for a test drive.

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Page Comments

Name:	Page Rating: 10	Date:11/2/2011 8:23:34 PM

Name: Ryan	Page Rating: 9	Date:9/29/2011 6:26:41 PM
Type of Plugs
We replaced the plugs 3 times within less than a year because of misfiring on all cylinders. Bought it with new plugs, replaced them to see if it would fix it, took it to a mechanic who did the same still the same problem. Gave the car to my dad who was told the only plugs for it were $20 a piece plugs, can't wait till the light comes back on when it's done running it's diagnostics.

Name: Lynn	Page Rating: 10	Date:9/25/2011 6:13:46 PM
Thank you
Excellent demo

Name: Lateisha	Page Rating: 8	Date:9/16/2011 6:59:09 AM
This is way more helpful than anytihng else I've looked at.
This is way more helpful than anytihng else I've looked at.

Name: Asbybay	Page Rating: 10	Date:8/5/2011 6:06:12 AM
Excellent Instructions
Very helpful indeed, wish all sites were this easy.

Name: Adrian	Page Rating: 10	Date:4/10/2011 6:07:20 PM
Usefull
Helpfull information and pics, thank you

Name: fred gehrke	Page Rating: 10	Date:11/27/2010 7:13:01 AM
Warning
Make sure your plug socket is firmly attached so when you pull the extension out that the socket comes with it.

Name:	Page Rating: 10	Date:10/17/2010 6:10:23 PM

Name: Charlie	Page Rating: 10	Date:8/2/2010 8:14:53 AM
Thanks
Great instructions for the weekend mechanic

Name: joe	Page Rating: 10	Date:6/19/2010 12:15:46 PM
jm83444@gmail.com
thank you, pics helped me do the job right the first time.

Name: Kelly Johnson	Page Rating: 10	Date:9/7/2009 9:17:56 PM

This was so help full now the spark plugs are changed

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