87 ranger powerwindow problems?


keonif150

10+ Year Member

Joined
Jul 22, 2008
Messages
5
Points
3,001
Age
49
Vehicle Year
1987
Transmission
Manual
got a 87 supercab ranger and I cannot get the window motor to roll down. drivers side windows work and both driver and passenger switches can get the motor to work going down. Got power going all the way to the motor but nothing. I'm stumped. Any suggestions or thoughts?

Thanks,
keoni
 
It's probably one of the switches.
The switches not only supply power but ground too.

Looking at a 93 schematic, it could be either switch.
 
Last edited:
^ +1 Sometimes spraying inside the switches with electrical contact cleaner will fix a switch that's not letting ground pass through it.
 
I do not know the elect. Window wiring but if it was me I would take a multimeter set for 12 volts DC and start checking the wiring, write down your findings (pwr in, up signal, down signal, etc).
Check the connections for grounding, make sure they are clean to bare metal; rusting can cause major problems in any grounding system.
If it is a ground wire connection redo the ground and maybe even run a wire back to the battery.
 
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