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Old 08-24-2015, 01:21 AM   #1
treveiger
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Anybody know what this plug is for?
Hey we recently bought a 2005 gmc Yukon. Yesterday I was going through it and noticed that the plug was just there and can't figure out where it goes. Any ideas would be great!
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Old 08-24-2015, 06:07 AM   #2
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Re: Anybody know what this plug is for?
optional heater control valve for rear system? I'm just guessing.

nice choice of a truck. All it needs now is a boat. Hey, I've got an idea
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Old 08-24-2015, 09:17 AM   #3
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Re: Anybody know what this plug is for?
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optional heater control valve for rear system? I'm just guessing.

nice choice of a truck. All it needs now is a boat. Hey, I've got an idea
Never let a good crisis go to waste.
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Old 08-24-2015, 11:17 AM   #4
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Re: Anybody know what this plug is for?
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Never let a good crisis go to waste.
Yeah, if he buys mine I can then get a real good start on my midlife crisis (Lund)
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Old 08-24-2015, 01:27 PM   #5
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Re: Anybody know what this plug is for?
Are they worth installing, if so where would someone get one? Thanks! We love it so far. Unfortunately my wife's not a big fan of boats but she's kinda interested in kayaks so we'll see. When you planning on getting your new boat? What kind?
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Old 08-24-2015, 02:13 PM   #6
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Re: Anybody know what this plug is for?
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Are they worth installing, if so where would someone get one? Thanks! We love it so far. Unfortunately my wife's not a big fan of boats but she's kinda interested in kayaks so we'll see. When you planning on getting your new boat? What kind?
I'll get the new one 2 days after you buy my old one

I wouldn't bother doing anything with that connector. Close the hood and enjoy life
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Old 08-24-2015, 06:08 PM   #7
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Re: Anybody know what this plug is for?
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I'll get the new one 2 days after you buy my old one

I wouldn't bother doing anything with that connector. Close the hood and enjoy life
Lol tempting, boats are addicting aren't they!
Sounds great, I'll ignore it.
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Old 08-24-2015, 06:33 PM   #8
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Re: Anybody know what this plug is for?
I have the same plug on my 06, never have known what it was for but I got the truck straight off the lot and it hasn't caused me any problems. Yet!
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Old 08-25-2015, 06:06 AM   #9
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Re: Anybody know what this plug is for?
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Lol tempting, boats are addicting aren't they!
Sounds great, I'll ignore it.
safe, legal version of drugs

and lastly
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Old 08-26-2015, 07:53 PM   #10
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Re: Anybody know what this plug is for?
B.O.A.T.

Bust Out Another Thousand



Here's mine I tow with my '06 K2500

Gary
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I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
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Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
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Old 08-27-2015, 01:13 AM   #11
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Re: Anybody know what this plug is for?
I believe that is for the old Air injection that used to sit in that corner on older models.
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Old 08-27-2015, 02:10 AM   #12
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Re: Anybody know what this plug is for?
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safe, legal version of drugs

and lastly
Lol I think drugs might be cheaper in long run. I'm excited to take the fishing boat out this summer hopefully soon.

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B.O.A.T.

Bust Out Another Thousand



Here's mine I tow with my '06 K2500

Gary
Wow that's a nice boat! What kinda power do those things have?
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Old 08-27-2015, 06:19 PM   #13
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Re: Anybody know what this plug is for?
There is a Merc 115 outboard and a Merc 9.9 kicker.

Sorry for the hijack OP!

Gary
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My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

Quote:
Originally Posted by LONGHAIR View Post
I would never rebuild a 305.
Quote:
Originally Posted by prostreetC-10 View Post
I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
Quote:
Originally Posted by Marv D View Post
Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
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Its cheaper to listen to advice given when you ask for help than it is to ignore everyone and wait for carnage.
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Old 08-27-2015, 06:42 PM   #14
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Re: Anybody know what this plug is for?
No worries! Love boats!
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Old 08-27-2015, 08:50 PM   #15
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Re: Anybody know what this plug is for?
Ive built a ton of those body style trucks and not one of them EVER had anything plugged into that plug. Jim
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Old 08-27-2015, 08:50 PM   #16
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Re: Anybody know what this plug is for?
And have had many stripped down all the way
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Old 08-28-2015, 02:34 AM   #17
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Re: Anybody know what this plug is for?
that's a plug for a 02sensor
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Old 08-28-2015, 06:56 PM   #18
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Re: Anybody know what this plug is for?
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No worries! Love boats!
Except mine. You'd rather see it sunk I assume
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Old 08-28-2015, 06:57 PM   #19
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Re: Anybody know what this plug is for?
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that's a plug for a 02sensor
Nope, 2 wire. O2 sensors are 4 wire
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Old 08-28-2015, 10:37 PM   #20
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Re: Anybody know what this plug is for?
Auxiliary Battery Relay Electrical Connector,
I have only seen the relay & Aux. Battery on gas trucks "Up-fitted" for Fire/Rescue/EMT/RV.
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Old 08-30-2015, 03:13 AM   #21
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Re: Anybody know what this plug is for?
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Except mine. You'd rather see it sunk I assume
Why's that Todd .
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Old 08-31-2015, 08:51 AM   #22
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Re: Anybody know what this plug is for?
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Why's that Todd .
That way I would stop trying to sell it to you.
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