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Power Windows Not Getting Constant Power
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Mike760
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PostPosted: Sat Feb 13, 2016 10:03 am    Post subject: Power Windows Not Getting Constant Power Reply with quote

Just started having an issue where my power windows appear to not be getting constant power with the engine running. Back lighting blinks on both driver and passenger side. When I roll them up or down... they move, stop, move, stop w/ the blinking.

With the key in, they work just fine. It is just once the van is running.

I've searched thru and have not found any loose wires. Could this be a relay issue?

Thank you very much!
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djkeev
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PostPosted: Sat Feb 13, 2016 11:52 am    Post subject: Re: Power Windows Not Getting Constant Power Reply with quote

It is most probably a ground issue.

Go through and make sure your ground points throughout the car are clean and firmly connected.

Dave
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Tom Powell
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PostPosted: Sat Feb 13, 2016 12:12 pm    Post subject: Re: Power Windows Not Getting Constant Power Reply with quote

Could be corrosion at terminal contacts in the switch. That's easy to clean. Does the problem occur at both idle and higher RPM?

Aloha
tp
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djkeev
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PostPosted: Sat Feb 13, 2016 3:10 pm    Post subject: Re: Power Windows Not Getting Constant Power Reply with quote

The wires in the door jamb feeding the door electrics will crack over time creating intermittent operation...... but I don't see that being affected by engine running or not.

When the engine is running it is drawing power (as well as creating it) the increased power draw often brings to light bad connections ..... + or -

What happens when you turn on the head lights and try the Windows?

Dave
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Mike760
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PostPosted: Sat Feb 13, 2016 4:47 pm    Post subject: Re: Power Windows Not Getting Constant Power Reply with quote

Thank you all for the help.

I had just cleaned the grounds and possible not gotten one 100% down. I went thru and cleaned them all up and it seems to have stopped. Fingers crossed it doesn't return.

Still have something funky going on. The passenger window is slow operating from the driver side. Works fine when operating from the passenger side. But I can live with that... Thank you!
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Tom Powell
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PostPosted: Sat Feb 13, 2016 7:10 pm    Post subject: Re: Power Windows Not Getting Constant Power Reply with quote

Mike760 wrote:
... The passenger window is slow operating from the driver side. Works fine when operating from the passenger side. ...


That might be due to the length of the wiring or corroded connections. Resistance = slow movement.

Aloha
tp
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Mike760
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PostPosted: Sat Feb 13, 2016 9:15 pm    Post subject: Re: Power Windows Not Getting Constant Power Reply with quote

Thanks Tom.

I'll have to remove the door panels and check all the wiring someday. The van has power windows, mirrors, dealer ac,... It's a mess of wires in the dash so I am avoiding messing with anything too much.
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Tom Powell
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PostPosted: Sat Feb 13, 2016 9:32 pm    Post subject: Re: Power Windows Not Getting Constant Power Reply with quote

Mike760 wrote:
... I'll have to remove the door panels and check all the wiring someday. ... I am avoiding messing with anything too much.


The switches will pop off without removing the panels. You can clean and/or exercise the connections. That solved my intermittent passenger power window problem.

Aloha
tp
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