Replace the Spark Plugs in a 2003-2007 (7th Generation) V6 Honda Accord
2003, 3004, 2005, 2006, 2007 Honda Accord V6 Models
It seems like there’s a few people getting ripped at the stealership for what I consider a simple job, so I decided to make a writeup.
**note- I’m not responsible for any damage you inflict on your car**
Make sure the engine is off and cool to the touch when performing this DIY or you increase the risk of damaging your cylinder heads!
What you’ll need:
- 6mm allen wrench
- Spark plug socket, extender (I recommend you have one that’s ~5″ for the rear plugs) and socket wrench.
- Flathead screwdriver or coin
- 6 Iridium spark plugs
Start with removing the plastic engine cover-
Use the screwdriver or coin to turn the screws left 90 degrees. Don’t forget to unhook the o2 sensor wire.
Remove the ignition coils-
First, detach all the connectors by pressing on the tab shown. Then use the 6mm allen to unscrew the coils. Then, simply lift them out of the engine.
Remove the old plugs using the spark plug socket, extender and socket wrench.
To install the new plugs-
First, coat the threads with anti-seize. DO NOT GAP the plugs as the are pre-gapped, and you may damage the electrode.
Hand tighten the plugs as shown. Then, tighten the plugs to specs (will post exact specs soon, with the little washers it should be 1/2 to 2/3 a turn).
Re-install the coil packs and connectors.
Re-install the plastic cover and o2 sensor wire.