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03-16-2016, 07:48 PM
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#1 |
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Registered User
Join Date: Apr 2015
Location: Shenandoah Valley, Virginia
Posts: 332
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What is this connector?
I was cleaning my engine bay today getting all that nasty winter crap off of all my polished parts and found this. What is this connector for?
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85' GMC Sierra Classic Built 350; Weiand intake, Holley 600, Thumpr Cam Built 350 turbo with shift kit & 2500 Stall Thumpin' away |
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03-16-2016, 07:57 PM
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#2 |
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Registered User
Join Date: Aug 2005
Location: Louisiana
Posts: 711
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Re: What is this connector?
Should be a mate to it coming off the distributor. Your distributor may have been swapped to the old style which does not have this so, someone left that hanging out.
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03-16-2016, 08:09 PM
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#3 |
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Registered User
Join Date: Apr 2015
Location: Shenandoah Valley, Virginia
Posts: 332
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Re: What is this connector?
As far as I know it had the original 85' HEI dizzy, then I had a guy replace it with a MSD HEI couple months back.. I wonder if it connects up to the MSD, I didn't see any other wire though, what's the function?
I should add, the truck originally had a 305, now has a 350
__________________
85' GMC Sierra Classic Built 350; Weiand intake, Holley 600, Thumpr Cam Built 350 turbo with shift kit & 2500 Stall Thumpin' away |
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03-16-2016, 08:42 PM
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#4 |
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Registered User
Join Date: Aug 2005
Location: Louisiana
Posts: 711
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Re: What is this connector?
IF your current distributor does not have the mate to that plug coming out of it, a pre computer style distributor was installed. The computer has been bypassed for that part.
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03-16-2016, 08:44 PM
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#5 |
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Registered User
Join Date: Aug 2005
Location: Louisiana
Posts: 711
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Re: What is this connector?
Personally, you/your motor are/is better off with what you got now, in my opinion.
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03-16-2016, 08:57 PM
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#6 |
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Registered User
Join Date: Jul 2007
Location: Sims, NC
Posts: 531
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Re: What is this connector?
It was for the ESC (electronic spark control) module that those trucks came with (plugged into the distributor). It retarded spark advance based on a knock sensor that was on the lower passenger side of the block.
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All things Chevy truck: 1986 SWB "Jolene" boosted 5.3/4l80e project |
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03-16-2016, 09:06 PM
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#7 |
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Registered User
Join Date: Apr 2015
Location: Shenandoah Valley, Virginia
Posts: 332
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Re: What is this connector?
Thanks guys. I knew that connector wasn't there until recently lol
Just kind of scared me seeing an unplugged wire!
__________________
85' GMC Sierra Classic Built 350; Weiand intake, Holley 600, Thumpr Cam Built 350 turbo with shift kit & 2500 Stall Thumpin' away |
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03-16-2016, 10:59 PM
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#8 |
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Registered User
Join Date: Oct 2015
Location: Ottawa, Ontario, Canada
Posts: 766
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Re: What is this connector?
GM set up a lot of trucks with both set up's for the DIST.. As my 84 has duel set ups parts truck that I got all the wiring w/fuse box & front clip off for my 77.
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 1977 REG cab Long Bed with a 1984 Front Clip, 82 305 .60 over 9.0.1 flat top pistons, 4bbl, TH350, w/84 SS-intake & cam , w/ 1977 big block rad, 1975 gear box, 1984 master w/ metric fittings top & SAE fitting @ portion block, 1975 3.42 gear open diff. Duel 77-87 Factory air cleaner, duel inlet from rad support . Down sized 9' to new 8' Steel flat bedWas a 77 454 w/308 gear. Taken out 550 lbs. up front with motor clip change. |
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03-16-2016, 11:11 PM
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#9 |
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Registered User
Join Date: Apr 2015
Location: Shenandoah Valley, Virginia
Posts: 332
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Re: What is this connector?
That would explain it. Thanks you guys! Today was a good day, I've been having a pretty serious oil leak everywhere I'd go I had a puddle of oil left behind, well today was nice weather and I actually had time to look into it. Climbed under the truck and saw oil down the side of the engine, popped the hood and I could tighten the last valve cover bolt with my finger, tightened that up and no more oil leak! Thank the lord, it was driving me insane recently.
__________________
85' GMC Sierra Classic Built 350; Weiand intake, Holley 600, Thumpr Cam Built 350 turbo with shift kit & 2500 Stall Thumpin' away |
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