How to replace spark plugs of Honda Odyssey 2005, 2006, 2007, 2008, 2009, 2010. Honda recommends to replace spark plugs (spark plug tune up) at 100,000 miles.

Spark plugs provide ignition spark to the engine. with repeated use these car plugs can have carbon deposit on them that can result in a bad spark plug. Cost to replace spark plugs can be more than $500. This is detailed step-by step video with parts and tools needed for this easy DIY work.

PARTS NEEDED
OEM spark plugs, Part # 12290-R70-A01
NGK 7751 (ILZKR7B11) Laser Iridium
https://amzn.to/3Qhjkpr

Anti Seize Spark Plug thread lubricant
https://amzn.to/3TAIUsx

TOOLS & SUPPLIES:
* Spark Plug socket, https://amzn.to/3B8NhDS
* Extension Bar Set, https://amzn.to/3cHIAaQ
* Flex Head ratchet, https://amzn.to/3cOfEhg
* Home & Auto Tool set https://amzn.to/39VPfbG
Will use its: 10mm socket - to open coil pack nuts
Socket adapter with 10mm socket
3 inch socket extension for spark plug
flat head driver to remove engine cover
+ ratchet (socket wrench)
* OBD II code reader, https://amzn.to/3wQqM4d
* flat head screw driver
* Rags or kitchen paper towels
* Dish washer detergent to clean hands

TIME REQUIRED
About an hour

ERROR CODES / CHECK ENGINE LIGHT
In Honda Odyssey a delay in spark plug replacement can lead to bad spark plugs that cause Check Engine Light with error code P0301, P0302, P0303 or P0304. When this happens the vehicle will lose power, vibrate and shake!! The situation is caused by misfire in cylinder (one of the spark plugs not creating a spark) therefore vehicle does not have enough power. Typically happens at cruising speed of 60+ mph when other 2 cylinders have shut down and put load on first four.

WHAT TO DO IF VEHICLE SHAKES & CHECK ENGINE LIGHT COMES ON:
* Don't panic, lower the vehicle speed
* Turn off air conditioning and any load on engine
* Stop safely some place (ideally a gas station)
* Open hood, let the engine cool down for 10+ mins
* Wiggle, tap on the six coil pack wires
* Resume driving, don't go over 65 mph
* Be prepared for CEL & vibration to start again

THIS IS A KNOWN ISSUE RECOGNIZED BY HONDA
Honda Odyssey has a known issue with VCM (variable cylinder management) feature of its engine which shuts off 2 out of 6 cylinders at cruising speed to in increase fuel economy. Sounds good in theory, BUT it leads to first four out of six spark plugs to wear out faster and vehicle gets Check Engine Light with error code P0301, P0302, P0303 or P0304.

Honda issued service bulletin 13-080 (see in video) and offered to replace spark plugs and / or cylinders for free if vehicle was ten years old. Mine is past the free service so I did what is noted in service bulletin - change spark plugs.


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