Power Window Issues - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1987SierraClassic · 05-21-2005, 03:25 PM

I have an '89 Suburban and the right rear window works intermittently. When testing, I can hear the motor try to move the window up (already closed), but no action in the down position. I'm wondering if there are limit switches in there somewhere that stop the motor when the window is all the way down or up and perhaps the motor thinks that the window is all the way down.
Anyone got any thoughts? New motor time?

hotrodhomi · 05-23-2005, 07:17 PM

check the switch

Bob Gervais · 05-24-2005, 05:36 AM

There's no limit switch or anything, I would do as suggested above and start at the switch.

1987SierraClassic · 05-28-2005, 06:32 PM

I tried the door switch, no luck. The only thing I haven't tried is replacing the 4-position switch on the driver's door since there is a feed-through on that one. I'll try to pickup a used one for testing. I'm just trying to avoid the hassle of replacing the motor if I don't have to!

Thanks for the info!

05-21-2005, 03:25 PM	#1
1987SierraClassic Registered User Join Date: Sep 2004 Location: Buxton, ME Posts: 91	Power Window Issues I have an '89 Suburban and the right rear window works intermittently. When testing, I can hear the motor try to move the window up (already closed), but no action in the down position. I'm wondering if there are limit switches in there somewhere that stop the motor when the window is all the way down or up and perhaps the motor thinks that the window is all the way down. Anyone got any thoughts? New motor time?

05-24-2005, 05:36 AM	#3
Bob Gervais Truckless for the moment... Join Date: Jan 2005 Location: Cranston, RI Posts: 180	There's no limit switch or anything, I would do as suggested above and start at the switch. __________________ 1987 V1500 GMC Suburban, 350 TBI, Flowtech dual exhaust, Rough Country 2" spring lift, 56" 3/4 ton rear spring conversion, 33" BFG All Terrains, and the smokescreen engine mod -- Former truck, searching for another now...

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05-23-2005, 07:17 PM	#2
hotrodhomi Registered User Join Date: Apr 2004 Location: Sacramento Posts: 3,737	check the switch

05-28-2005, 06:32 PM	#4
1987SierraClassic Registered User Join Date: Sep 2004 Location: Buxton, ME Posts: 91	I tried the door switch, no luck. The only thing I haven't tried is replacing the 4-position switch on the driver's door since there is a feed-through on that one. I'll try to pickup a used one for testing. I'm just trying to avoid the hassle of replacing the motor if I don't have to! Thanks for the info!



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