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12-11-2007, 07:24 AM
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Spark plug Socket, Size?
Hey does anyone know what the socket size is for the Spark Plug socket on the H3?
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12-12-2007, 01:38 AM
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Hummer Veteran
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Join Date: Dec 2007
Location: somewhere
Posts: 164
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Re: Spark plug Socket, Size?
should be a standard 5/8 ..........
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12-12-2007, 03:07 AM
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Hummer Authority
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Join Date: Sep 2003
Location: Canada
Posts: 1,251
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Re: Spark plug Socket, Size?
Yup 5/8"
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12-12-2007, 06:54 AM
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Re: Spark plug Socket, Size?
Thanks.
I was in the market for some new tools, and didn't know if it was going to be metric. Seems like other items are on this truck.
Anyway, thank you for the info.
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12-12-2007, 02:24 PM
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Hummer Veteran
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Join Date: Dec 2007
Location: somewhere
Posts: 164
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Re: Spark plug Socket, Size?
get a hold of a snapon tool guy.. they have spark plug sockets for the Triton v8 that is about 8 inches long . can we say no more extensions.... they are about 40 bucks...and work great.......
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12-12-2007, 02:56 PM
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Hummer Guru
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Join Date: Sep 2005
Location: fort salonga ny
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Re: Spark plug Socket, Size?
What kind of plugs are you putting in ?
I thought the plugs were good for 100,000 miles ?
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H3 gray adventure,brushguard,hood handles,sunroof,steps,crossbows,smokers package,window/sunroof visor,Airbrushed spare tire cover,mudflaps,K&N filter,SS Hummer insert,Hummer rubber mats,cargo rubber mat + shade,12 volt airhorn,eclipse nav/dvd/rear camera/mini remote,autostart,12 volt fridge,high beam garage remote,underhood air compressor, taillight bezels ,clinometer ,trailer brake and hitch.
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12-12-2007, 03:51 PM
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Hummer Veteran
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Join Date: Dec 2007
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Re: Spark plug Socket, Size?
100k is bad mojo for plugs.. i hate to tell you how many heads i have to replace because when you wait that long the plugs have a tendency to remove some of the threads with them . at the dealership i used to work for we called it the 100 thousand mile head replacement.. i do mine every 30 k regardless.... and some more info platinum plugs are a waste of money.. i have corrected thousands of misfire codes .. when a small piece of carbon breaks off and causes the plug not to fire .. the piece was small enough on a platinum plug it would not fire and if it was a normal plug it would continue to fire and just burn off. just my .02 worth .................................................. .............. rich
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12-13-2007, 10:11 AM
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Re: Spark plug Socket, Size?
I'm not changing plugs yet, but I read about the head being a problem if you wait for the 100,000 mile change out.
I just wanted to get a new, light tool kit made up to carry in the back, and felt that a nice new gap & feeler guage, as well as a plug socket would be a good addition.
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12-20-2007, 06:31 AM
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Hummer Professional
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Join Date: Feb 2006
Location: Out in the windy oil field
Posts: 358
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Re: Spark plug Socket, Size?
ok so I got to ask the Dumb question here. How in the hell to you get to the spark plugs on this engine.
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12-27-2007, 08:46 PM
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Hummer Guru
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Join Date: Jul 2006
Location: Stouts Creek
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Re: Spark plug Socket, Size?
The plugs are under the black plastic air handler on top of the engine... 
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12-27-2007, 09:28 PM
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Re: Spark plug Socket, Size?
you mean these things have spark plugs.....................
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12-28-2007, 01:30 AM
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Hummer Veteran
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Join Date: Dec 2007
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Re: Spark plug Socket, Size?
Quote:
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Originally Posted by wpage
The plugs are under the black plastic air handler on top of the engine... |
and then you have to remove the coil . its on top of the spark plug.. one for each clyinder .......
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11-25-2013, 05:33 AM
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Hummer Expert
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Join Date: May 2006
Location: Johnstown, PA.
Posts: 553
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Re: Spark plug Socket, Size?
Any idea of the proper gap size for these plugs? Are the AC Delco OEM replacements already gapped to size? Thanks!
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11-26-2013, 02:06 AM
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Hummer Guru
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Join Date: Jul 2006
Location: Stouts Creek
Posts: 4,192
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Re: Spark plug Socket, Size?
Quote:
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Originally Posted by H3.007
Any idea of the proper gap size for these plugs? Are the AC Delco OEM replacements already gapped to size? Thanks!
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1.08
__________________
"For God so loved the world he gave his only son that whoever believe in him would not perish but have everlasting life. "
(John 3:16)
2006 H3 Slate Blue,Header,Jacked,CAI,Toyo35's,HHO.
Priors...
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71 Vette
You Name it!
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05-01-2015, 12:14 AM
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Hummer Expert
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Join Date: Apr 2006
Location: cary nc
Posts: 765
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Re: Spark plug Socket, Size?
anyone running the bosch iridium plugs? Or any iridium plugs for that matter?
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