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03-28-2011, 05:32 PM
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#1 |
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Registered User
Join Date: Mar 2011
Location: owatonna, minnesota
Posts: 58
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power window switch
Both windows in my 78 are stuck down!!! I have power to the switch on the drivers side but no go for the windows? Is my switch bad? if so where does a guy find the power window switch that has 5 prongs on the back? everyone ive found is 6! Please help!!!
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03-28-2011, 05:43 PM
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#2 |
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Registered User
Join Date: Apr 2010
Location: Swan River Manitoba Canada
Posts: 233
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Re: power window switch
it could be your window motor. im no expert though.
__________________
parts truck- 1982 suburban GMC Sierra Classic first project- 1985 GMC Sierra Classic first truck- 1988 GMC Sierra sle "New" Hot rod 1999 Chevy silverado 5.3L ^^^ Workin my way up the food chain 
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03-28-2011, 05:46 PM
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#3 |
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Registered User
Join Date: Sep 2010
Location: Ajax, Ontario
Posts: 214
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Re: power window switch
Check for power at the motor, while pushing the switch with the key turned. If you have power then your motor may be stuck. Just take the plug out of the motor
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03-28-2011, 05:57 PM
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#4 |
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Registered User
Join Date: Mar 2011
Location: owatonna, minnesota
Posts: 58
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Re: power window switch
I have power at the motors. But lose it when you push the switch! Both windows are stuck down as well!
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03-28-2011, 06:28 PM
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#5 |
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Registered User
Join Date: Sep 2010
Location: Ajax, Ontario
Posts: 214
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Re: power window switch
then you have a short in the switch. You should have + one way and - the other wire the switched when the switch is reversed. + where the - was and vice versa.
I'm still struggling with mine too. |
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03-28-2011, 06:54 PM
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#6 |
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Registered User
 Join Date: Jul 2003
Location: Franklin, NE
Posts: 387
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Re: power window switch
there is a relay under the dash on the 77-80 models you might need to check. Mine was bad and had been hacked around. If it is bad, do an eBay search for 3996804.
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03-28-2011, 07:08 PM
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#7 |
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Registered User
Join Date: Sep 2010
Location: Ajax, Ontario
Posts: 214
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Re: power window switch
isn't that relay for the locks only
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03-29-2011, 07:59 PM
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#8 |
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Registered User
Join Date: Mar 2011
Location: owatonna, minnesota
Posts: 58
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Re: power window switch
thats what I thought that relay was for! Im not sure though I just pulled it out of winter storage today so its time to do more investigating!
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03-29-2011, 08:16 PM
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#9 |
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Registered User
Join Date: Jul 2003
Location: Franklin, NE
Posts: 387
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Re: power window switch
Only the years 77-80 had the relay under the dash. I have a 78 which had a bad one that someone had hacked around.
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03-29-2011, 11:27 PM
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#10 |
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Registered User
Join Date: Mar 2011
Location: owatonna, minnesota
Posts: 58
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Re: power window switch
so what am I looking for under the dash?
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03-29-2011, 11:54 PM
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#11 |
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Registered User
Join Date: Jul 2003
Location: Franklin, NE
Posts: 387
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Re: power window switch
here is a picture of one from ebay
http://67-72chevytrucks.com/vboard/n...te=1&p=4587657 It has has a 3 wires going to it, one large red/white, a pink/black and a orange/black |
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03-30-2011, 11:42 AM
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#12 |
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Registered User
Join Date: Mar 2011
Location: owatonna, minnesota
Posts: 58
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Re: power window switch
where under the dash is it located? I must be blind!!
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03-31-2011, 09:31 AM
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#13 |
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Registered User
Join Date: Mar 2011
Location: owatonna, minnesota
Posts: 58
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Re: power window switch
well heres the update! Windows are up and it was a faulty relay under the dash!!! Now where am I gonna get one of those at? local parts stores looked at me funny! I have it hot wired so they go up and down for the time being! Thanks for the help guys!
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03-31-2011, 09:37 AM
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#14 |
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Arrived on a Pale Horse
Join Date: Mar 2007
Location: SnagTown Indiana
Posts: 2,524
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Re: power window switch
you could probably put a universal 12V relay in there if you can't find one.
__________________
Jason 87 V30 350TBI/400 White w/Boss V-plow 89 R3500 CC SRW |
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03-31-2011, 10:18 AM
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#15 |
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Registered User
Join Date: Jul 2003
Location: Franklin, NE
Posts: 387
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Re: power window switch
Here is the eBay link I wanted to post, but screwed up.
http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT |
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03-31-2011, 10:50 AM
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#16 |
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Registered User
Join Date: Mar 2011
Location: owatonna, minnesota
Posts: 58
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Re: power window switch
WOW! thanks for locating that! that relay was used for other purposes i see!
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03-31-2011, 10:55 AM
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#17 |
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Registered User
Join Date: Jul 2003
Location: Franklin, NE
Posts: 387
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Re: power window switch
I think that is the guy I purchased mine from. It came in the original box. You have probably figured out you have to bend yourself into a pretzel to get to the relay
 The mental giant who worked on my truck before I had it cut off the connector to put in an aftermarket relay so that is on my todo list. |
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03-31-2011, 01:55 PM
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#18 |
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Registered User
Join Date: Mar 2011
Location: owatonna, minnesota
Posts: 58
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Re: power window switch
and to think that all of the trucks I parted out that had power windows in them I never even thought of taking any of those relays from under the dash! This site is so very helpful! Now the next step is to get my cargo light to work again! Thanks again for all the help!!http://www.facebook.com/album.php?id...783531&theater
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