Electrical Connector Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Astro-Balls · 05-29-2019, 09:04 PM

This connector is up behind the glove box on my '68.
is this for a glove box light?
Three wires, Yellow Green and Brown. It is partially melted..

firedemon · 05-29-2019, 09:11 PM

radio I believe

**HO455** · 05-29-2019, 09:33 PM

Is your truck an A/C truck?

Astro-Balls · 05-29-2019, 09:43 PM

Yes, AC truck, the connector is "L" shaped, the radio was missing when I bought the truck and there is no original flat radio connector.

**HO455** · 05-29-2019, 09:51 PM

I'm not 100% sure but that may be the lead to the blower control relay on an A/C truck. I am pretty sure it isn't the radio lead. I rewired my non-A/C truck and reinstalled the factory radio in my Burban. So the radio wiring I am familiar with the A/C not so much.
Do a search for A/C blower control relay or wiring.
Good Luck.

Andy4639 · 05-29-2019, 09:55 PM

It looks like the AC relay that mounts on the passenger side on the duct work under the dash.

Astro-Balls · 05-30-2019, 12:31 AM

I will look again tomorrow, I couldn't find where it attaches..

Astro-Balls · 05-30-2019, 09:28 PM

OK, so I found out that the brown wire was added by Bubba the Previous Owner.
The brown wire was stuffed in the connector and poked through the firewall and attached to the blower motor hot lead, Why?? I don't know..

brown wire removed.

all plugs in position on the AC relay,

so I am still looking for where the Green and Yellow connector went originally..

**dmjlambert** · 05-30-2019, 10:16 PM

From the service manual. Dark green and yellow wire to the compressor clutch switch. I don't know what the DBL/WS means added to the 16DG. The wire should not be both dark green and dark blue with a white stripe. They labeled the wire more plainly in the 1969 manual, just 14DG.

Astro-Balls · 05-30-2019, 10:28 PM

Hmmm, Now I have to locate where the compressor clutch switch is, .. Mine might be missing..

**dmjlambert** · 05-30-2019, 10:43 PM

In the bottom of the 2 pictures above, shown behind the A/C box under the dash. Somebody may be able to post an actual picture of it, instead of just the service manual page. Here is the service manual link: http://67-72chevytrucks.com/vboard/s...d.php?t=558016

Astro-Balls · 05-30-2019, 10:57 PM

Thanks very much, I know where to search now..

Astro-Balls · 05-31-2019, 02:33 PM

Thanks to Stocker, now I know what part to order and where it goes..
http://67-72chevytrucks.com/vboard/s...d.php?t=787771

.

**Stocker** · 05-31-2019, 07:02 PM

Sorry I didn't post in this thread earlier. I was confused by your brown wire and didn't see your post #8 last night. No telling why it was stuffed in there -- maybe as a way to power up the A/C compressor instead of replacing a bad switch? Anyway, glad you figured it out!

05-29-2019, 09:04 PM	#1
Astro-Balls Registered User Join Date: Feb 2019 Location: Nor Cal Posts: 822	Electrical Connector Question This connector is up behind the glove box on my '68. is this for a glove box light? Three wires, Yellow Green and Brown. It is partially melted.. __________________ 1968 C20 Fleetside 396 4sp PS PB AC CST . https://www.youtube.com/watch?v=RWK8GgWD4uA

05-29-2019, 09:11 PM	#2
firedemon Registered User Join Date: Jun 2015 Location: @ Posts: 890	Re: Electrical Connector Question radio I believe

05-29-2019, 09:33 PM	#3
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 11,224	Re: Electrical Connector Question Is your truck an A/C truck? __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377

05-29-2019, 09:43 PM	#4
Astro-Balls Registered User Join Date: Feb 2019 Location: Nor Cal Posts: 822	Re: Electrical Connector Question Yes, AC truck, the connector is "L" shaped, the radio was missing when I bought the truck and there is no original flat radio connector. __________________ 1968 C20 Fleetside 396 4sp PS PB AC CST . https://www.youtube.com/watch?v=RWK8GgWD4uA

05-29-2019, 09:51 PM	#5
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 11,224	Re: Electrical Connector Question I'm not 100% sure but that may be the lead to the blower control relay on an A/C truck. I am pretty sure it isn't the radio lead. I rewired my non-A/C truck and reinstalled the factory radio in my Burban. So the radio wiring I am familiar with the A/C not so much. Do a search for A/C blower control relay or wiring. Good Luck. __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377

05-29-2019, 09:55 PM	#6
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,943	Re: Electrical Connector Question It looks like the AC relay that mounts on the passenger side on the duct work under the dash. __________________ 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.

05-30-2019, 12:31 AM	#7
Astro-Balls Registered User Join Date: Feb 2019 Location: Nor Cal Posts: 822	Re: Electrical Connector Question I will look again tomorrow, I couldn't find where it attaches.. __________________ 1968 C20 Fleetside 396 4sp PS PB AC CST . https://www.youtube.com/watch?v=RWK8GgWD4uA

05-30-2019, 09:28 PM	#8
Astro-Balls Registered User Join Date: Feb 2019 Location: Nor Cal Posts: 822	Re: Electrical Connector Question OK, so I found out that the brown wire was added by Bubba the Previous Owner. The brown wire was stuffed in the connector and poked through the firewall and attached to the blower motor hot lead, Why?? I don't know.. brown wire removed. all plugs in position on the AC relay, so I am still looking for where the Green and Yellow connector went originally.. __________________ 1968 C20 Fleetside 396 4sp PS PB AC CST . https://www.youtube.com/watch?v=RWK8GgWD4uA

05-30-2019, 10:16 PM	#9
dmjlambert Senior Member Join Date: Apr 2016 Location: Cypress, TX Posts: 3,789	Re: Electrical Connector Question From the service manual. Dark green and yellow wire to the compressor clutch switch. I don't know what the DBL/WS means added to the 16DG. The wire should not be both dark green and dark blue with a white stripe. They labeled the wire more plainly in the 1969 manual, just 14DG. Attached Images

05-30-2019, 10:28 PM	#10
Astro-Balls Registered User Join Date: Feb 2019 Location: Nor Cal Posts: 822	Re: Electrical Connector Question Hmmm, Now I have to locate where the compressor clutch switch is, .. Mine might be missing.. __________________ 1968 C20 Fleetside 396 4sp PS PB AC CST . https://www.youtube.com/watch?v=RWK8GgWD4uA

05-30-2019, 10:43 PM	#11
dmjlambert Senior Member Join Date: Apr 2016 Location: Cypress, TX Posts: 3,789	Re: Electrical Connector Question In the bottom of the 2 pictures above, shown behind the A/C box under the dash. Somebody may be able to post an actual picture of it, instead of just the service manual page. Here is the service manual link: http://67-72chevytrucks.com/vboard/s...d.php?t=558016

05-30-2019, 10:57 PM	#12
Astro-Balls Registered User Join Date: Feb 2019 Location: Nor Cal Posts: 822	Re: Electrical Connector Question Thanks very much, I know where to search now.. __________________ 1968 C20 Fleetside 396 4sp PS PB AC CST . https://www.youtube.com/watch?v=RWK8GgWD4uA

05-31-2019, 02:33 PM	#13
Astro-Balls Registered User Join Date: Feb 2019 Location: Nor Cal Posts: 822	Re: Electrical Connector Question Thanks to Stocker, now I know what part to order and where it goes.. http://67-72chevytrucks.com/vboard/s...d.php?t=787771 . __________________ 1968 C20 Fleetside 396 4sp PS PB AC CST . https://www.youtube.com/watch?v=RWK8GgWD4uA

05-31-2019, 07:02 PM	#14
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,665	Re: Electrical Connector Question Sorry I didn't post in this thread earlier. I was confused by your brown wire and didn't see your post #8 last night. No telling why it was stuffed in there -- maybe as a way to power up the A/C compressor instead of replacing a bad switch? Anyway, glad you figured it out! __________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay



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