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#1 |
Registered User
Join Date: Aug 2009
Location: Greenville, SC
Posts: 10
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Power Windows just quit
Last night driving home from a football game, my power windows (both sides) just quit. No noise like they're trying to work, so I figure it's a blown fuse. Pulled and replaced the fuse today, and still nothing. I think the fuse was blown but I am not sure because it was in a little metal box and I can't see the element. Any ideas what to troubleshoot next? I don't think both switches failed simultaneously? That would be too big a coincidence?
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#2 |
Registered User
Join Date: Aug 2009
Location: Greenville, SC
Posts: 10
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Re: Power Windows just quit
Oh, yeah. '83 Jimmy.
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#3 |
Registered User
Join Date: Aug 2009
Location: Greenville, SC
Posts: 10
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Re: Power Windows just quit
OK--now I can open and close the passenger window using both switches, but neither window using only the switch for that window. Bad switch maybe on the driver's side?
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#4 |
Registered User
Join Date: Jan 2009
Location: South Bay, Ca
Posts: 36
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Re: Power Windows just quit
I would suspect the switch is going bad or the relay is going bad. Also check the ground, maybe it's pinched or corroded.
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#5 |
Registered User
Join Date: Aug 2009
Location: Greenville, SC
Posts: 10
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Re: Power Windows just quit
New switch (drivers side) from LMC came today. Swapped them out on my lunch break. Now the passenger window works using the passenger side switch, but still nothing on drivers side. Where is the relay located? Also gonna check the ground and follow the wiring to the motor to see if it all looks good first, I guess. Any other thoughts?
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#6 |
Robert Olson Transport
![]() Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,288
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Re: Power Windows just quit
make sure all the connections are good to the drivers switch they tend to get hot and the plastic melts so they dont make good contact with the prongs on the switch.. id also check the ground and go back at the wiring of the motor with a test light and see what happens there if you have power to one door its more than likely a wiring issue and not a relay... check all the connections and any areas that could rub against metal
__________________
Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
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#7 |
I really hate wet sanding!
![]() Join Date: Dec 2008
Location: Brookfield, MO
Posts: 601
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Re: Power Windows just quit
inside the rubber sleve on the drivers door between the door and the cab there is a ground wire, well actually several of them that are joined with a crimp on connector. As the door opens and closes it will bend the wires back and forth and cause the ground wires to snap, this will cause the windows and door locks to quit working, or sometimes they will work sometimes as you open and close the drivers door, you could try opening the door at different gaps and testing your switches. I have seen this happen on many trucks, it is a pain to fix, because of the cramped quarters, but I would check this area first to avoid buying stuff you don't need. Good luck!
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#8 |
Registered User
Join Date: Aug 2009
Location: Greenville, SC
Posts: 10
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Re: Power Windows just quit
Thanks everyone. Westofb had the closest answer. It was the red (power?) wire in the rubber sleeve that had a missing connector. Reconnected it and it works like a charm.
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#9 |
I really hate wet sanding!
![]() Join Date: Dec 2008
Location: Brookfield, MO
Posts: 601
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Re: Power Windows just quit
Blind sows even find an acorn now and then!
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Jeff, 68 C-10 75 C-20, now a C-10! 10 F-150 |
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#10 |
Registered User
![]() Join Date: Jul 2003
Location: Franklin, NE
Posts: 387
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Re: Power Windows just quit
Well, you could have my problem. Some genius has wired the windows so that they always have power to them, even when the ignition is off. Which is causing my battery to drain down.
Lots of little **** like this I need to fix to make it reliable. |
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#11 | |
Account Suspended
Join Date: Apr 2010
Location: Greenville, SC
Posts: 24
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Re: Power Windows just quit
Quote:
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#12 |
78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: Power Windows just quit
there is a clip to join the wire harness in the door to the inside of the truck,it's justinside thetruck up under the dash,unclip it,attach a fish wire, pull it back into the door (through the rubber)for inspection/repair.use fish wire to pull it back.........this happened with mine.......cracks IN the wires only found when removed it........For me i went to manuals
fish wire=coat hanger,stiff wire........
__________________
John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
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#13 |
Registered User
Join Date: Mar 2003
Location: wichita falls tx
Posts: 429
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Re: Power Windows just quit
1st off there are no relays on our trucks, all the power goes through the switches.
You can probably use a screw to reattatch them or use another rivet. I plan on using rivets. |
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#14 |
Registered User
![]() Join Date: Jul 2003
Location: Franklin, NE
Posts: 387
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Re: Power Windows just quit
77-80 use a relay under the dash for the power windows. Mine has been repaired, and I use that in the loosest of terms by a "master mechanic", butchered would be a more apt description. I am going to have to find a doner to get mine working.
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#15 |
Registered User
Join Date: Dec 2007
Location: Palmer, Alaska
Posts: 13,821
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Re: Power Windows just quit
the power windows never had relays in stock form, there is a relay for the power locks though under the dash to the right of the steering column....
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#16 |
Registered User
![]() Join Date: Jul 2003
Location: Franklin, NE
Posts: 387
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Re: Power Windows just quit
For 77-80 they have a relay. I have a Factory wiring diagram that shows it. The part number is 3996204, group 12.263, again from a factory parts manual. After 81 they don't to my knowledge.
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#17 | |
BMW & ASE Master Certified
Join Date: Feb 2004
Location: Houston, Texas
Posts: 1,262
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Re: Power Windows just quit
Quote:
havent done it yet, but its one of those things I plan on doing some day...
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1987 Silverado - L83 5.3 w/ 6L80e ,A/C,P/W,P/L,TILT, HID projectors, Wilwood C-10 Pro Spindles w/ 2018 silverado front brakes & C-5 Corvette Rear Disc Brakes 1999 BMW 528i - 5.7 LS1 w/ 4l60e, Ford 8.8 IRS w31 spline posi & FX-r projector retrofit New project: 2006 BMW x5 6cyl AWD to L83 6l80e 4wd to 2WD / RWD A poor man buy's it twice finally got my domain name back, 87chevy.com.... site rework in progress |
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#18 | |
Registered User
Join Date: Dec 2007
Location: Palmer, Alaska
Posts: 13,821
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Re: Power Windows just quit
Quote:
how does it show this wired? it is a SPST N.O. relay that is normally used as a horn relay... ![]() http://www.skycraftsurplus.com/12vdc...tactrelay.aspx
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![]() ![]() Last edited by joe231; 06-29-2010 at 12:04 AM. |
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#19 | |
Registered User
Join Date: Mar 2003
Location: wichita falls tx
Posts: 429
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Re: Power Windows just quit
Quote:
I have never had a 77-80 w/ power windows, so I'm not sure on that. |
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#20 | |
just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: Power Windows just quit
I don't recall ever running into relays on them either, but the wiring on these confuses most people quickly.
They have a "Double Pole Double Throw" (DPDT) switch and the motor is isolated from ground. When you push the switch one way it gives the motor power and ground, to run one direction. When you pull the switch the other way it is just the opposite. It sends the power to the terminal on the motor that got ground before, and power to the one that was grounded before. The necessary ground is actually at the switch.
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Tags |
electrical issues, fuses, power windows, windows |
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