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#1 |
Registered User
Join Date: Apr 2011
Location: Rapid City, SD
Posts: 104
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What is this Plug? Pics inside!
Can anyone tell me what this is? I have no wires running to it? It is on the passenger side firewall?
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#2 |
Registered User
![]() Join Date: Jul 2013
Location: Forestburg, Texas
Posts: 659
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Re: What is this Plug? Pics inside!
Compressor relay
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Mark Jesus is the Way! 2003 2500HD CCLB Duramax/Ali (Clifford) 2014 2SS/RS black on black Camaro (Betty) 2006 Pontiac SOLSTICE silver/black (Lula-Bell) 1970 C/10 Short Wide (Peggy) 1964 C/10 Short Step (Hambone) RIP Jimmy Hamilton Thank you for the trucks |
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#3 |
Registered User
Join Date: Apr 2011
Location: Rapid City, SD
Posts: 104
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Re: What is this Plug? Pics inside!
Compressor relay? So what was it used for on the original equipment? I have a new 383 installed now.
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#4 |
Registered User
Join Date: Jul 2012
Location: Ft Wayne Indiana
Posts: 1,204
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Re: What is this Plug? Pics inside!
It was for the A/C compressor.
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71 K20 64 GMC mud truck |
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#5 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Unless someone moved it to there it's not for the AC that I know of. The AC relay is inside on my 71 cab.
It maybe a relay for something at one time though. ![]() ![]()
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#6 |
Registered User
Join Date: Apr 2011
Location: Rapid City, SD
Posts: 104
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Re: What is this Plug? Pics inside!
If its for the AC Compressor, Should it be hooked up to it? I do have an updated Compressor that was put on, along with the new motor?
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#7 |
I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: What is this Plug? Pics inside!
I believe that's the relay that keeps it from Dieseling.I can't remember what it's actually called.
Maybe anti-dieseling relay?
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The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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#8 |
Registered User
Join Date: Jul 2013
Location: Winnsboro Texas
Posts: 367
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Re: What is this Plug? Pics inside!
Not sure if its the same relay but I have one on my non a/c '70 It goes to a vac solenoid on the intake. The vac lines go to the vac advance on the distributor. I figured it was some kind of California emissions or something? |
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#9 |
Registered User
Join Date: Sep 2005
Location: Canton North carolina
Posts: 3,079
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Re: What is this Plug? Pics inside!
It is not relay for a/c it is a relay for tcs ( transmission controlled spark) it was connected to trans and vac advance and pulled timing out when truck sent into high gear. It was early emission device and had a vac solenoid that was electric and vac. Operated. On intake.
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#10 | |
Registered User
![]() Join Date: May 2013
Location: Seattle, WA
Posts: 28
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Re: What is this Plug? Pics inside!
Quote:
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#11 |
Registered User
Join Date: Apr 2011
Location: Rapid City, SD
Posts: 104
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Re: What is this Plug? Pics inside!
Thanks Guys!!! Its getting removed and thrown in the trash!!!
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