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02-09-2011, 08:10 PM | #1 |
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HOW TO: Manual locks and windows to power conversion
I have this posted on other forums, I figured posting here, those who come here regularly may benefit from it.
My '94 Suburban was not originally equipped with power windows, or locks. It was a cheyenne model. I used all (mostly) the OEM parts to do this conversion. I could have gone aftermaket, but I like OE. Since it is basically plug and play, This hits the highlights of the install, and show what's involved with getting the components and wiring into an Suburban/crewcab.The procedure is essentially the same for two door pickups, or Tahoe's To install the factory window/lock harness, the dash has to come out. The factory GM harness. This is a '95 harness. '95 and up uses positive trigger lock, and unlock. 88-94's are reverse polarity system with no relay. The harness runs across the firewall, at the base of the windshield.I have heard of some doing this conversion without removing the dash, and running the harness with the main dash harness. ...And runs down into the a pillar cavity. The lock relay clips into a hole on the right of the column support. The window relay clips on to the left side of the column support. Left side harness plugs into door harness in the kick panel/A pillar. And the right... The harness plugs into the convienence center/junction block on the left side firewall. all terminals on it are marked "pnk" "wht" "gry" "blk" "grn" etc. and refer to the color of the connector ends, not the wire color. It took me a few tries to get them plugged into the correct switched/unswitched terminals, a multimeter, or power probe helps here. Here's how my harness is connected, as long as the wires get the right power sources, (ign,acc, battery) it doesn't matter where you connect them. you could even go directly to the battery for power, and to the steering column for acc/ign. For anyone attempting this, I reccomend plugging the components in at this point and testing functionality. These are handy. If you do any glass/window regulator work, I reccomend getting some of these window holders. Original manual door card, drill out the rivets holding the regulator to the inner door. stripped out... I used these OE fit aftermarket Electric life power conversion regulators in the Front. They bolt right into the factory holes. In this case, I spliced the electric life motor harness to the original harness. The door lock actuators are mounted on the inner door behind the outside door handle (the mounting holes are already there). the post to connect the actuator to is on the lock rod of some trucks depending on the year, even if it does not have power locks, this is the best way I could get a pic of it. These are tough to mount, access, and connect the harness to but the mounting holes are already there. The power unit in the door. On to the rear... Harness clips into the B pillar. The original rear setup. To remove rear regulator, take out the 2 10mm bolts in the window guide,and separate it from the glass. As with the front, drill out the factory rivets and remove manual regulator, The rear uses different mounting holes for the power regulator, but they are punched out from the factory. Here's the rear door lock actuator, again, right behind the outside door handle. As viewed through the door handle hole. |
02-09-2011, 08:53 PM | #2 |
One day...
Join Date: Apr 2008
Location: Tuttle, Ok
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Re: HOW TO: Manual locks and windows to power conversion
Very cool thanks for sharing!
There is a FAQ area now too in the "sticky" ill copy this thread there too for for more good info threads. |
02-09-2011, 08:57 PM | #3 |
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Re: HOW TO: Manual locks and windows to power conversion
No problem. I have a couple more...
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"94 Suburban '89 Dually '00 Tahoe 88 shortbox |
02-09-2011, 09:17 PM | #4 |
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Re: HOW TO: Manual locks and windows to power conversion
Looks good man
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Brandon... "IT ONLY TAKES EVERYTHING YOU GOT!!" Semper Fi |
02-09-2011, 10:45 PM | #5 |
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Re: HOW TO: Manual locks and windows to power conversion
Well done. I have the various pieces required to convert mine. Now i have the photos too. Thanks for the post.
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www.67HEAVEN.com 2004 Z71 Tahoe 4x4 5.3L (factory white monochrome theme) 1989 Silverado K1500 4x4 5.7L sportside (white monochrome theme) 1967 Belair 2-door-post (project) 1967 Corvette 427/435 coupe (now 502/502 red road warrior) |
02-10-2011, 08:29 AM | #6 |
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Re: HOW TO: Manual locks and windows to power conversion
I don't see how you guys do it....taking pics during one of these projects. It's usually all I can do to maintain patience and concentration, I'm sure my camera would end up on the roof of my shop along with a couple of Harbor Freight crescent wrenches
Glad you posted 'em, though, I have a '97 crewcab that I'm converting to electric. I managed to score electric doors, so mine will be mostly the dash harness thing. I have a spare dash, the one in the truck is screwed up, so I'll get to mock everything up first. |
02-10-2011, 12:19 PM | #7 |
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Re: HOW TO: Manual locks and windows to power conversion
Well, One of the things I do at my job is write installation instructions for auto accessories (with photos) from scratch, so it's second nature to me.
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"94 Suburban '89 Dually '00 Tahoe 88 shortbox Last edited by BHBurban; 02-10-2011 at 12:20 PM. |
01-12-2012, 01:27 PM | #8 |
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Re: HOW TO: Manual locks and windows to power conversion
BHBurban,
Now that I have mine apart, in preparation for adding the power windows/locks harness, I'd like to ask a few more questions please. As you know, some of the components were very difficult to disconnect in the upper dash area behind the cluster. I basically removed screws, etc. by feel, rather than by sight. Any hints as to how to re-attach screws and harnesses you can't see when starting the reassembly? Re-attach in any particular order? One item of concern is the instrument cluster harness rear connector that snakes its way through the ductwork to get to the gauge assembly. Even now, I'm not sure I remember how it snaked through there as I was too busy muttering under my breath to remember much. There it is above the large number 5... Thanks again for this thread. It was very helpful.
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www.67HEAVEN.com 2004 Z71 Tahoe 4x4 5.3L (factory white monochrome theme) 1989 Silverado K1500 4x4 5.7L sportside (white monochrome theme) 1967 Belair 2-door-post (project) 1967 Corvette 427/435 coupe (now 502/502 red road warrior) |
01-14-2012, 12:12 PM | #9 |
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Re: HOW TO: Manual locks and windows to power conversion
Unfortunatley, re assembly is the reverse of the disassembly. Cursing and fighting included. I just removed another 88-94 dash over the holidays and as many times as i have done it, it's still a pain. Can't see anything over the column/cluster area, and you have to do it by feel. Poke and hope.
Only thing I can recommend is to actually stand in outside the truck as far forward in the door opening as you can and look through the windshield, and try to reach in, and get the mounting screws started. That's what I do. ...Hopefully you don't have short arms.
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"94 Suburban '89 Dually '00 Tahoe 88 shortbox Last edited by BHBurban; 01-14-2012 at 12:23 PM. |
01-21-2019, 12:29 AM | #10 |
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Re: HOW TO: Manual locks and windows to power conversion
Funny I want to make mine have manual doors
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( second times the charm) 71 gmc c15 307 sbc 373 rear gears positrac sm 465 trans. ( not listed on spid but is original ) 94 chevy k1500 350 tbi 373 rear gears 4l60e one wheel peel. Gutless 07 gmc sierra classic rcsb 4.3 lt 5 speed w/t 04 chevy Silverado 1500 ext cab 5.3 4l60e. 81 chevy Scottsdale k10 muncie sm465 Np208 10 bolt 8.2 ( Old Green) |
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