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Go Back   Hummer Forums by Elcova > Hummer H3 Discussion Forums > Technical Discussion and Customizing your H3

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  #1  
Old 12-11-2007, 06:24 AM
Lex_Ordo
 
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Default 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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  #2  
Old 12-12-2007, 12:38 AM
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Default Re: Spark plug Socket, Size?

should be a standard 5/8 ..........
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  #3  
Old 12-12-2007, 02:07 AM
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Default Re: Spark plug Socket, Size?

Yup 5/8"
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  #4  
Old 12-12-2007, 05:54 AM
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Default 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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  #5  
Old 12-12-2007, 01:24 PM
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Default 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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  #6  
Old 12-12-2007, 01:56 PM
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Default 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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  #7  
Old 12-12-2007, 02:51 PM
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Default 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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  #8  
Old 12-13-2007, 09:11 AM
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Default 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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  #9  
Old 12-20-2007, 05:31 AM
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Default 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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  #10  
Old 12-27-2007, 07:46 PM
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Default Re: Spark plug Socket, Size?

The plugs are under the black plastic air handler on top of the engine...
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  #11  
Old 12-27-2007, 08:28 PM
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Default Re: Spark plug Socket, Size?

you mean these things have spark plugs.....................
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  #12  
Old 12-28-2007, 12:30 AM
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Default Re: Spark plug Socket, Size?

Quote:
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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  #13  
Old 11-25-2013, 04:33 AM
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Default 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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  #14  
Old 11-26-2013, 01:06 AM
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Default Re: Spark plug Socket, Size?

Quote:
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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  #15  
Old 05-01-2015, 12:14 AM
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Default Re: Spark plug Socket, Size?

anyone running the bosch iridium plugs? Or any iridium plugs for that matter?
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