Intermittent Wipers - The 1947 - Present Chevrolet & GMC Truck Message Board Network

OG lil E · 02-10-2005, 11:39 PM

It was finally nice enough to hit the junkyard today. A little muddy, but it felt good to get outdoors.

I came across a Blazer (I'm guessing it was an '86 or '87) that still had the intermittent wipers in it. I got the switch, as well as the little "brain" box from under the dash, and as much of the wiring harness I could reach (the part that stays in the truck). After I got it out, I walked around to see if there were any other trucks that had the same style plugs on the wiring harness.
There were two other styles of plugs that I could find. On one, there were 4 terminals side by side. On the others, there was an "L" shaped plug with 5 terminals but only 4 wires. By the time I got home tonight, it was dark and already getting cold, so I'll have to wait until tomorrow to see what style plug my truck has. I was wondering, will this work in my truck (79)? Will this be a plug in deal, or will I have to re-wire everything? Did I need to get the wiper motor too? Has anybody out there done this conversion to their truck? Sorry for all the questions, but I want to make sure this can be done before I get in over my head. Thanks for any help! Layta...............E

BTW, the Blazer looked to be one of the last of the 73-87 bodies. It had the grille with the big square headlights. But, it had the early door panels with the map pockets and the fancy aluminum trim, the later dash bezel with the silver finish, but the early dash pad. It also had the column mounted cruise control, but the wiper switch was on the dash. It was definitely a strange one! E

beaterC10 · 02-11-2005, 08:36 AM

I can help you some. You don't need to change the wiper motor, all you need is the wiper switch and the intermittent control box. On my 84 I was able to install the controll box between the factory wiper harness plugs.

It sounds like the donor is 83 or older. It appears 1983 was the last year the wiper switch was on the dash. My 84 has it on the column. Every 73-87 with factory cruise I have seen has the cruise control switch on the column. The square headlights mean the the truck is no older than 1980. Sounds like your wiper parts are 80-83 which should plug right into your 79.

784X4GUY · 02-11-2005, 10:54 AM

So the wiper motors never changed through out the years of these trucks?

beaterC10 · 02-11-2005, 11:08 AM

No, the wiper motors have changed, but you don't have to change the motors to incorporate intermittent wipers.

Truckstuff · 02-13-2005, 03:26 AM

Plug N Play 1978 - 1983

OG lil E · 02-13-2005, 10:02 PM

Yep, it was plug 'n' play! I pulled out my wiper switch, and the new one went right in! Super simple conversion. Took all of 10 minutes to install! Thanks for the help everyone!

E

1974gmc · 03-02-2005, 03:01 AM

did 74's every come with intermittent wipers?

02-10-2005, 11:39 PM	#1
OG lil E Registered User Join Date: Jul 2003 Location: The Mile High City Posts: 34	Intermittent Wipers It was finally nice enough to hit the junkyard today. A little muddy, but it felt good to get outdoors. I came across a Blazer (I'm guessing it was an '86 or '87) that still had the intermittent wipers in it. I got the switch, as well as the little "brain" box from under the dash, and as much of the wiring harness I could reach (the part that stays in the truck). After I got it out, I walked around to see if there were any other trucks that had the same style plugs on the wiring harness. There were two other styles of plugs that I could find. On one, there were 4 terminals side by side. On the others, there was an "L" shaped plug with 5 terminals but only 4 wires. By the time I got home tonight, it was dark and already getting cold, so I'll have to wait until tomorrow to see what style plug my truck has. I was wondering, will this work in my truck (79)? Will this be a plug in deal, or will I have to re-wire everything? Did I need to get the wiper motor too? Has anybody out there done this conversion to their truck? Sorry for all the questions, but I want to make sure this can be done before I get in over my head. Thanks for any help! Layta...............E BTW, the Blazer looked to be one of the last of the 73-87 bodies. It had the grille with the big square headlights. But, it had the early door panels with the map pockets and the fancy aluminum trim, the later dash bezel with the silver finish, but the early dash pad. It also had the column mounted cruise control, but the wiper switch was on the dash. It was definitely a strange one! E

02-11-2005, 10:54 AM	#3
784X4GUY Did someone say MUD? Join Date: Aug 2003 Location: Pullman,WA Posts: 1,089	So the wiper motors never changed through out the years of these trucks? __________________ Im in the market guys...so keep ya eyes peeled -------------------- Mini trucks are for guys who cant get it up!

02-13-2005, 03:26 AM	#5
Truckstuff Registered User Join Date: Dec 2003 Location: Cloverdale, British Columbia Canada Posts: 159	Plug N Play 1978 - 1983 __________________ Real Trucks are Built not Bought Building: 1981 GM SB LowRider 1985 GM K3500 3+3 1981 GM K2500 SSB 1980 GM K2500 X-BC Hydro 1979 GM K3500 3+3 1976 GM K5 Blazer 1970 Custom 10 http://bc4x4.com/

03-02-2005, 03:01 AM	#7
1974gmc In Progress Join Date: Feb 2005 Location: Kamloops, BC, Canada Posts: 312	did 74's every come with intermittent wipers? __________________ 1993 Chevrolet K2500 454 4L80E 1974 GMC 1/2t 2wd Stepside 305 auto sold 1985 Ford Mustang GT 5.0 5spd

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02-11-2005, 08:36 AM	#2
beaterC10 Senior Member Join Date: Jul 2003 Location: Indianapolis, IN Posts: 1,277	I can help you some. You don't need to change the wiper motor, all you need is the wiper switch and the intermittent control box. On my 84 I was able to install the controll box between the factory wiper harness plugs. It sounds like the donor is 83 or older. It appears 1983 was the last year the wiper switch was on the dash. My 84 has it on the column. Every 73-87 with factory cruise I have seen has the cruise control switch on the column. The square headlights mean the the truck is no older than 1980. Sounds like your wiper parts are 80-83 which should plug right into your 79.

02-11-2005, 11:08 AM	#4
beaterC10 Senior Member Join Date: Jul 2003 Location: Indianapolis, IN Posts: 1,277	No, the wiper motors have changed, but you don't have to change the motors to incorporate intermittent wipers.

02-13-2005, 10:02 PM	#6
OG lil E Registered User Join Date: Jul 2003 Location: The Mile High City Posts: 34	Yep, it was plug 'n' play! I pulled out my wiper switch, and the new one went right in! Super simple conversion. Took all of 10 minutes to install! Thanks for the help everyone! E



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