Detailed Hummer H3 Spark Plug Change (also Chevy Colorado & GMC Canyon). Also, Air Filter Change.

Changing the spark plugs is an easy DIY project that can save you a significant amount of money over having a mechanic do it. It'll take less than 30 minutes and you'll spend under $40 even using premium extended-life iridium plugs. Compare that to a shop which typically runs $250 to $300!
ACDelco 41-103 Professional Iridium Spark Plugs: amzn.to/34YEDH3
Titan 3 Piece Magnetic Parts Tray Set: amzn.to/2SSBUcs
DeWalt impact wrench amzn.to/34eRLaG
Permatex Dielectric Grease: amzn.to/3dqTCgM

[@joannjohnson7241]

This will be a first for me on my H3. I do hope I don’t mess up. I’ll be doing it on my own. Times like this wish I had a man

[@genodinero]

YoU back on the road? how did it go?..

[@Snailmailtrucker]

You should have checked the Spark Plug hole for water or dirt and blew it out with compressed air if needed before removing the Spark Plug. I did mine yesterday and #1 plug was full of water.(P0301 code)
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[@USMC-Sniper-0137]

I would use dielectric grease on the plug before slipping into socket for ease of removal.

[@SystemCrasher113]

Thanks sir, I have same code.

[@SystemCrasher113]

My 06 H3 also has oil coming through the vacuum hose and I hope it is normal

[@JechtAruon]

Made me cringe a lil him using an impact drill for that one plug. You can easily bring your threads out with the plug.