Author Topic: wire identification  (Read 4263 times)

Offline Irish_Alley

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wire identification
« on: March 03, 2017, 02:41:13 AM »
not mine and cant really help out on year. ill try to get the info but what so these wires do
If you canít tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline Stewart G Griffin

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Re: wire identification
« Reply #1 on: March 03, 2017, 07:23:04 AM »
Only guessing, but the two plugs may be fast idle solenoid and A/C.   Not sure about the ring.

Offline Captkaos

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Re: wire identification
« Reply #2 on: March 03, 2017, 07:32:42 AM »
what is the application?  Lockup switch and Starter power wire?
Who's is this and where is it coming from?

Offline Irish_Alley

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Re: wire identification
« Reply #3 on: March 03, 2017, 08:22:39 AM »
facebook local.
If you canít tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline harcorshe

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Re: wire identification
« Reply #4 on: March 03, 2017, 09:10:43 AM »
Based on the location, size, and color, it looks like the feed to the A/C blower relay, but it should have a Packard Series 56 connector instead of a ring. 
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Offline bd

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Re: wire identification
« Reply #5 on: March 03, 2017, 09:45:05 AM »


Looking at the red and purple starter wires laying on the framerail and running toward the battery instead of toward the firewall; wondering whether the green and red wires being held for display are freshly taped; seeing the battery cable laying loose on top of the framerail instead of securely anchored to the framerail with an Adele clamp (which is catastrophe waiting for opportunity), imply the wiring maybe a work in process.  The ring terminated red wire could be the B+ feed from the starter to the firewall junction block.  The green pair maybe A/C and idle solenoid, or converter lockup, as previously suggested.  Post the year/model information, a description of the situation and what the owner is trying to accomplish, and maybe some pics that provide a better overall for fewer guesses.
« Last Edit: March 04, 2017, 08:42:51 PM by bd »
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline Irish_Alley

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Re: wire identification
« Reply #6 on: March 03, 2017, 10:02:42 AM »
found out its a 86 k something that had a 305 now has a 350.
If you canít tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline Irish_Alley

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Re: wire identification
« Reply #7 on: March 03, 2017, 10:04:56 AM »
that was a typo last night also should of been "what do these wires do". i can see the b+ red wire going to the starter, the other ones i was thinking ac. but i was thinking the ac plugs are round
If you canít tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline Irish_Alley

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Re: wire identification
« Reply #8 on: March 03, 2017, 01:39:41 PM »

from the owner after i asked, does it start? "Yeah runs drives blower motor runs heat works"
If you canít tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline bd

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Re: wire identification
« Reply #9 on: March 03, 2017, 03:59:36 PM »
that was a typo last night also should of been "what do these wires do". i can see the b+ red wire going to the starter, the other ones i was thinking ac. but i was thinking the ac plugs are round

If the wires entering those two connectors are light green and light blue, they are for the lockup converter circuit on an MD8 (according to the 1986 Wiring Manual, page 15).  If that's true and the red wire is bundled in the same taped loom with the green & blue wires, then the red wire probably connects to the firewall junction block.  Is the charging system working?

Does the owner have a problem with his truck or _________?
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline Irish_Alley

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Re: wire identification
« Reply #10 on: March 03, 2017, 04:04:05 PM »
when i get home im going to give him a link to this page so im not being a middle man and he can give you better and correct info. also i thought he said it was and still is a manual
« Last Edit: March 04, 2017, 01:58:13 AM by Irish_Alley »
If you canít tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline Irish_Alley

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Re: wire identification
« Reply #11 on: March 04, 2017, 01:32:21 PM »
owner is working on getting registered
from him
They trace back to the wires directly to the right of the heater box truck is a ac truck
If you canít tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline Captkaos

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Re: wire identification
« Reply #12 on: March 05, 2017, 10:06:42 PM »
All have been approved, just need to activate.

Offline Matt_lngoerp

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Re: wire identification
« Reply #13 on: March 06, 2017, 06:12:04 AM »
Hello everyone sorry for the delay OK the truck is a 86 k10 was a 305 truck now has a 350 trans is a A-883 3speed overdrive stick shift it has ac non cruise truck these wires come out of fire wall directly to the left of the HVAC box it's not a starter wire almost certain will not reach truck runs and drives fine I drive everyday but who ever touch the wire harness was a hack and im just tying to get it back to how it's supposed to

Offline Matt_lngoerp

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Re: wire identification
« Reply #14 on: March 06, 2017, 06:42:19 AM »
They come out directly to the right of the HVAC not the left sorry about that