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05-25-2011, 09:53 PM | #1 |
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Join Date: Apr 2011
Location: Gilmer, TX
Posts: 29
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Problem W/ RH Power Window
My passenger side power window is not completely working. It doesn't work at all when using the driver's side switch. It only tries to go up using the passenger side switch. I have checked the motor with the battery and it works both ways. There must be a wiring issue somewhere? fuse? What else do I need to check and where would it be located?
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Bo '83 C10, LQ4, 4L80E |
05-26-2011, 12:22 PM | #2 |
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Join Date: Mar 2009
Location: MD
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Re: Problem W/ RH Power Window
I would take a circuit tester and see if you get power coming out of the driver side switch when pressed and them see if is getting power to the motor. If it's coming out of the switch but not at the motor the wire is messed up somewhere between. I don't think it could be the fuse if you have power to the switches. I'm far from a power window expert, but sometimes seeing where you do and don't have power can prevent one from just throwing switches and motors on that don't need replaced.
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2006 Silverado Crew Cab 1500 4x4 5.3L automatic 1986 M1008 CUCV 6.2L Detroit Diesel TH400 4.56 Detroit Locker rear NP208 1973 K20 "Silverado" 350ci, HEI, TH350, NP203 with 2wd conversion, A/C, power windows,tilt wheel, dual tanks. My '73ish K20 thread My 5yo son claims it as his. 1987 V20 Custom Deluxe 350 TH400 NP208 "farm truck" getting parted out. 2016 Nissan Altima grocery getter/commuter |
05-26-2011, 01:36 PM | #3 |
78K & 79C Jimmys
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Re: Problem W/ RH Power Window
wires crack and break inside that rubber tube to the door
may wana meter from the switchs to the plug around the e brake pull off one each on both sides
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
05-26-2011, 02:14 PM | #4 |
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Location: washington the state
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Re: Problem W/ RH Power Window
I belive the drivers 4 switch is like $20 yours is probly bad I just replace it before ripping wires
the switched build up corrosion and dont make good contact I've found its easier to start with new switches and cut that out of the equation
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my sports car rolls on six wheels only because I'm to fat to get in and out of new corvette http://hubgarage.s3.amazonaws.com/ph...ped_detail.JPG |
05-26-2011, 03:35 PM | #5 |
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Location: Tucson, AZ
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Re: Problem W/ RH Power Window
I agree with checking power before you buy anything. In my case, the harness connector which attaches to the switch prongs had frayed wires where it bends into the connector. It is very difficult to detect this, and the problem will likely be intermittent before it completely won't work, so pull the switch out of the door panel and wiggle the connector and its wires to see if the window will function. If wiggling it works, then you need a new harness with connector.
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05-26-2011, 10:16 PM | #6 |
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Location: Gilmer, TX
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Re: Problem W/ RH Power Window
Thanks for all the replies...
I have checked continuity of the wires from the switch to the inside through the door jamb and all check good, I even checked continuity from LH door to RH door of same wires, all check good. I have bought new switches for both sides, still doesn't work. I am going to go back and recheck all wires as far as power and continuity between connections to make sure I didn't miss anything... Is there anything under the dash that I should check?? How do the wires run from door to door once they make connection from the door jamb? Is it just a straight shot or anything else? I have a wiring diagram but it just show a straight shot... Maybe I just need someone to explain exactly how the switches work, electrically, because I am new to this.
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Bo '83 C10, LQ4, 4L80E |
05-27-2011, 11:43 AM | #7 |
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Re: Problem W/ RH Power Window
I suspect many switches and motors have been replaced when the problem was really in the connectors - that was my experience. You can have continuity until you put the switch back into the door panel and the wires at the connector move - if the wires are frayed they will not make good contact.
the connector wires at the switch are bent at a 90 degree angle - this makes them subject to wear and they fray or break off easily where they attach to the connector. Remove the switch from the door panel and look closely at the wires where they are stabbed into the connector, then wiggle the wires while operating the switch - there is a good chance that the switches will work at some point in the wiggling process because the wires will have enough integrity to transmit current to the switch. If new switches work for you that is great and a cheap fix. I have had only one bad switch on my truck - the other problems were all connectors. If you need a new harness and connector post back here and I can point you to a replacement. |
05-27-2011, 05:47 PM | #8 |
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Join Date: Apr 2011
Location: Gilmer, TX
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Re: Problem W/ RH Power Window
Thanks for everyone's help... It ended up being the LH switch, the tan and blue/white wires were not grounding so the RH window would never go down. All the connections look very good actually, no frayed wires...
Also, I knew nothing about switches until this little project, learned a lot!
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Bo '83 C10, LQ4, 4L80E |
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