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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: SinisterC10 on December 13, 2016, 05:04:13 pm
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>:(
Safe to say I'm pissed.
I have a dilemma now as well. The wiring kit I putting in the truck is for up to a 1982. I just recieved a rebuilt floor shift column for this truck because I'm putting my auto shifter on the floor as well.
The problem is that in 1981 the wiper switch was on the dash. In 1984 the switch was on the turn signal lever on the column like the one I'm replacing is. I can't just send the rebuilt column back and reuse the old one because the wiring kit is different now. I didn't know any of this at the time as this is the first C10 I've owned.
Sooooo, my question is this: Since my truck has intermittent wipers, How do I use a intermittent wiper switch in the dash of this truck? There is nowhere to mount it as the dash design changed. Also, did these trucks have intermittent wipers in 1981? If they didn't I'm not sure if I'll be able to wire it to this American Autowire kit.
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Go to the pick and pull and find a up to 1983 and cut out the lower left dash surrounding the headlight switch and wiper switch leaving enough to securely rivet it to the cab you have. The dash bezel will cover it.
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Go to the pick and pull and find a up to 1983 and cut out the lower left dash surrounding the headlight switch and wiper switch leaving enough to securely rivet it to the cab you have. The dash bezel will cover it.
Well unfortunately no wrecking yard around here has anything in the right year.
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do your wipers work now?
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You should be able to just rewire if you have the old connectors.
Chris Lucas
73-87chevytrucks.com
squarebody.biz
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do your wipers work now?
They did but the entire truck is apart. I'm doing a frame-on resto. I have the AAW wiring kit I bought from this site partially installed already. That kit is for up to an 82.
The vin n this truck says it's in an 81' but the dash and column say it's an 84'. I talked to the last 2 previous owners and they too were under the assumption it was a 1981. On the registration it has 1981 AND 1984 as model years in two different boxes on the registration. I'm still waiting on the title. The bank owned the truck so it's an electronic title and could take up to 2 months to get.
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You should be able to just rewire if you have the old connectors.
Chris Lucas
73-87chevytrucks.com
squarebody.biz
Well, there lies the issue. In 1984 all the wiper wiring was in the column. Before that, it all ran to the dash switch.
If I can find an up to 1983 dash switch AND can find a place to mount it I should be able to wire it to my existing wiper system right? I though I read somewhere that I also need some type of factory module for the switch?
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Are you saying you have the stalk on the column, no provisions on the dash for a switch but a wiring harness made for an 81-83 wiper system? If so why not just wire it up like the 84? You should match the wiring to your needs, not the truck to your wiring harness. That doesn't make much sense to me.
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Are you saying you have the stalk on the column, no provisions on the dash for a switch but a wiring harness made for an 81-83 wiper system? If so why not just wire it up like the 84? You should match the wiring to your needs, not the truck to your wiring harness. That doesn't make much sense to me.
Because I already have a new rebuilt steering column for an 81'. If I returned it and exchanged it for an 84' I would be in it $$$ just in a steering column.
I think I'm going to buy an 80-83 dash bezel and mount it up and see if I can trace out a hole to mount the wiper switch.
If I put an 84 column back in then I don't even know if I could wire this harnress into a plug that would connect to the column.
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You will have to move the headlight switch some to make it right.
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Does anyone have wiper schematics for an 81' and an 84? Mine are the intermittent wipers.
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Does anyone have wiper schematics for an 81' and an 84? Mine are the intermittent wipers.
Yes. Look in the "My Bucket" link in my signature for the GM shop manuals and wiring diagrams.
BTW You'll need the 1985 wiring diagrams to show the full later model column switch. The 1984 wiring diagrams show the dash mounted wiper switch with a column mounted dimmer.
I'd use the wiper control and delay module on the column if you have it. It's less fragile than the dash mounted delay switch/control and you can go to the local parts store to buy replacements.
You can put your dimmer on the floor or the column fairly easily. Three wires. Pick your poison and get the proper connector... they both use the same Female Packard 56 terminals.
The floor dimmer uses Delphi Packard 56 Female connector # 8900855
The column dimmer uses Delphi Packard 56 Female connector # 8917693
Here's a thread with a few of my posts that contain a fair amount of detail on the subject of wiper and dimmer wiring on 78 & up dashes and columns. http://forum.73-87chevytrucks.com/smforum/index.php?topic=32195.0 (http://forum.73-87chevytrucks.com/smforum/index.php?topic=32195.0)
I may do an autopsy on the GM through hole circuit board 78-84.5 delay module.
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Does anyone have wiper schematics for an 81' and an 84? Mine are the intermittent wipers.
Yes. Look in the "My Bucket" link in my signature for the GM shop manuals and wiring diagrams.
BTW You'll need the 1985 wiring diagrams to show the full later model column switch. The 1984 wiring diagrams show the dash mounted wiper switch with a column mounted dimmer.
I'd use the wiper control and delay module on the column if you have it. It's less fragile than the dash mounted delay switch/control and you can go to the local parts store to buy replacements.
You can put your dimmer on the floor or the column fairly easily. Three wires. Pick your poison and get the proper connector... they both use the same Female Packard 56 terminals.
The floor dimmer uses Delphi Packard 56 Female connector # 8900855
The column dimmer uses Delphi Packard 56 Female connector # 8917693
Here's a thread with a few of my posts that contain a fair amount of detail on the subject of wiper and dimmer wiring on 78 & up dashes and columns. http://forum.73-87chevytrucks.com/smforum/index.php?topic=32195.0 (http://forum.73-87chevytrucks.com/smforum/index.php?topic=32195.0)
I may do an autopsy on the GM through hole circuit board 78-84.5 delay module.
So I should just use the 84' column? Also what's the dimmer that you keep talking about? If I used an 84 column wouldn't this dimmer (whatever that is) already be incorporated into the column along with the module?
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Does anyone have wiper schematics for an 81' and an 84? Mine are the intermittent wipers.
Yes. Look in the "My Bucket" link in my signature for the GM shop manuals and wiring diagrams.
BTW You'll need the 1985 wiring diagrams to show the full later model column switch. The 1984 wiring diagrams show the dash mounted wiper switch with a column mounted dimmer.
I'd use the wiper control and delay module on the column if you have it. It's less fragile than the dash mounted delay switch/control and you can go to the local parts store to buy replacements.
You can put your dimmer on the floor or the column fairly easily. Three wires. Pick your poison and get the proper connector... they both use the same Female Packard 56 terminals.
The floor dimmer uses Delphi Packard 56 Female connector # 8900855
The column dimmer uses Delphi Packard 56 Female connector # 8917693
Here's a thread with a few of my posts that contain a fair amount of detail on the subject of wiper and dimmer wiring on 78 & up dashes and columns. http://forum.73-87chevytrucks.com/smforum/index.php?topic=32195.0 (http://forum.73-87chevytrucks.com/smforum/index.php?topic=32195.0)
I may do an autopsy on the GM through hole circuit board 78-84.5 delay module.
So I should just use the 84' column? Also what's the dimmer that you keep talking about? If I used an 84 column wouldn't this dimmer (whatever that is) already be incorporated into the column along with the module?
It dims or brightens the headlights depending on how it's set. The 83 and prior trucks used a dimmer button on the floor. 84 and later used a dimmer switch on the column.
Judging from the people I meet on the road at night with their high beams on... I have to assume they don't know what the dimmer is either. LOL.
I'd use the 1984 column or even upgrade to the 1985 and later column.
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What's the difference between an 84 column and an 85 and up one?
Also if I do use the correct column (wether it's an 84 or 85) how hard do you think it will be to wire it up to this 82 and down AAW wiring harness? Do you know what differences there are in the harnesses?
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I wasn't aware of any differences between 84 and 85 in the column itself. What differs is that the windshield washer function on the 84 works off the wiper motor while the 85 on up has an electric pump in the washer bottle. That may differ the wiring some in that function but should only be the difference.
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Ok well I wouldn't want the 85 column then as then I would have to change out the pump.
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Ok well I wouldn't want the 85 column then as then I would have to change out the pump.
Not correct...
You can fit a 1978-1991 column. It depends on what you already have and how much you're willing to change. If I hadn't found a 1979 manual tilt for my 1976 I would've happily fitted a 1984 and up column and deleted the floor button and dash switch. You will need to match the stub end of the column or snag the, rag joint to column, intermediate shaft because some had a splined round end and some had two flats sometimes called a double D.
Electrically;
The harmonica plug pinout does not change across the whole 1978-1991 run... that's the 78-86 CK & 87-91 RV chassis.
The 78-83 will have ONLY turns on the column. These require the dimmer button on the floor, and wiper switch on the dash.
The 84-91 will have the multifunction turn signal stalk. If you have wipers on the dash and dimmer on the floor it's up to you whether you re-wire to use the stalk switch for these functions or just ignore the switches on the column stalk. It will bolt in and work without moving the wiring.
GM removed the Washer wires from the wiper motor and moved them to the washer bottle in 1985. The only difference is the washer pump plug and how long the engine bay wires needed to be. This is all in the Engine Bay wiring not inside the cab.
The washer switch connects the WASH wire to GROUND. The change makes ZERO difference in the cab wiring.
I wasn't aware of any differences between 84 and 85 in the column itself. What differs is that the windshield washer function on the 84 works off the wiper motor while the 85 on up has an electric pump in the washer bottle. That may differ the wiring some in that function but should only be the difference.
The 1984 GM Light Truck wiring diagrams show a dash switch for the wipers and a turnsignal stalk dimmer switch.
The F & G body cars, like my 1982 Cutlass Supreme G body, were already using the multifunction turn stalk with Wiper, Washer, Cruise, Dimmer, added to the Turn switches and buried in the column shrouds. It seems a little odd that GM would make the 1984 truck column an orphan by only moving the dimmer from the floor and not moving the wiper switch from the dash at the same time.
I've owned a 1982 & 1985 but not a 1984... I would remember an oddity like that.
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Ok well I wouldn't want the 85 column then as then I would have to change out the pump.
Not correct...
You can fit a 1978-1991 column. It depends on what you already have and how much you're willing to change. If I hadn't found a 1979 manual tilt for my 1976 I would've happily fitted a 1984 and up column and deleted the floor button and dash switch. You will need to match the stub end of the column or snag the, rag joint to column, intermediate shaft because some had a splined round end and some had two flats sometimes called a double D.
Electrically;
The harmonica plug pinout does not change across the whole 1978-1991 run... that's the 78-86 CK & 87-91 RV chassis.
The 78-83 will have ONLY turns on the column. These require the dimmer button on the floor, and wiper switch on the dash.
The 84-91 will have the multifunction turn signal stalk. If you have wipers on the dash and dimmer on the floor it's up to you whether you re-wire to use the stalk switch for these functions or just ignore the switches on the column stalk. It will bolt in and work without moving the wiring.
GM removed the Washer wires from the wiper motor and moved them to the washer bottle in 1985. The only difference is the washer pump plug and how long the engine bay wires needed to be. This is all in the Engine Bay wiring not inside the cab.
The washer switch connects the WASH wire to GROUND. The change makes ZERO difference in the cab wiring.
I wasn't aware of any differences between 84 and 85 in the column itself. What differs is that the windshield washer function on the 84 works off the wiper motor while the 85 on up has an electric pump in the washer bottle. That may differ the wiring some in that function but should only be the difference.
The 1984 GM Light Truck wiring diagrams show a dash switch for the wipers and a turnsignal stalk dimmer switch.
The F & G body cars, like my 1982 Cutlass Supreme G body, were already using the multifunction turn stalk with Wiper, Washer, Cruise, Dimmer, added to the Turn switches and buried in the column shrouds. It seems a little odd that GM would make the 1984 truck column an orphan by only moving the dimmer from the floor and not moving the wiper switch from the dash at the same time.
I've owned a 1982 & 1985 but not a 1984... I would remember an oddity like that.
But the 84 DID have the dimmer AND wiper switch on the turn signal lever, or at least the column that came in this truck has it along with cruise control. My nieces husband Has an 84 and it's the same.
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But the 84 DID have the dimmer AND wiper switch on the turn signal lever, or at least the column that came in this truck has it along with cruise control. My nieces husband Has an 84 and it's the same.
That makes more sense. The intern screwed up the wiring diagrams and management didn't notice.