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Window wont go down

Tiny
ZACO
  • MEMBER
  • 1990 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
Passenger side power window doesnt work. Have power at switch and when press switch have power at plug to motor. Have tried 3 new motors and even new switch but still nothing. Got good connection to motor. Got me puzzled. What else is there. Any ideas will help
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Sunday, July 24th, 2011 AT 3:05 AM

6 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Is the regulator seized?
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Sunday, July 24th, 2011 AT 6:49 AM
Tiny
S15RACERV8
  • MEMBER
  • 4 POSTS
I am having the same problem with my 1990 Blazer. I can hear it clicking when I press the up, so I switched the wires at the switch so when you pressed up the window would go down and it worked but window would not go back up when you pressed down, so I switched teh wires back, I have replaced both drivers and passenger window switchs and still doesn't work.
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Saturday, February 25th, 2012 AT 5:14 PM
Tiny
BRADYSYD88
  • MEMBER
  • 1 POST
  • 1988 CHEVROLET SILVERADO
  • 5.0L
  • V8
  • RWD
  • AUTOMATIC
  • 200,844 MILES
My passanger side window wont work. I have replaced the motor and I know that there is power going to the motor. The switch doesnt do anything on either side, passanger or driver side. But my power locks work on both sides. And my driver side window works fine. Also there is power to the switch.
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Saturday, May 23rd, 2020 AT 10:52 AM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
The motor requires both power AND GROUND to work and you need to test both. If it is missing ground, then it is going to get complicated and someone is going to have to follow a wiring diagram to find the problem.
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+1
Saturday, May 23rd, 2020 AT 10:52 AM (Merged)
Tiny
JERSEY1946
  • MEMBER
  • 1 POST
  • 1983 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 167,000 MILES
Both power windows on my chev. C-10 p/u stopped working at the same time. Is there a fuse that controls this function?
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Saturday, May 23rd, 2020 AT 10:52 AM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
No, they use a circuit breaker. Check the wiring harness at the door pillar. Constant bending sometimes breaks the wires. You could also have a bad master switch.
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Saturday, May 23rd, 2020 AT 10:52 AM (Merged)

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