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Front Passenger side window won't go up; only down

Tiny
SHOLDERMAN
  • MEMBER
  • 2002 FORD EXPLORER
  • 100,000 MILES
I have replaced the regulator and got the same result. I then replaced the master switch (I read somewhere if it's bad, neither switch will work and got the same result. The window only goes down (can't go down any further so you hear the motor come on briefly). I switched the front passenger switch with the rear passenger side switch since I knew it worked and got the same result, just to rule out that the front passenger switch is faulty. What's left? Wiring? I wouldn't think it's a fuse since the other 3 work fine. Please help. It's especially frustrating.
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Friday, April 6th, 2012 AT 3:59 PM

6 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Throwing parts at it isn't the way to find the problem. It needs to be troubleshooted using a wiring diagram. If you have the tools and know how to read one, I will supply it to you.
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Friday, April 6th, 2012 AT 4:07 PM
Tiny
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  • 4 POSTS
If I don't have the tools I'll buy them. Please send. Thanks!
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Friday, April 6th, 2012 AT 4:10 PM
Tiny
WRENCHTECH
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You need more than tools to do this but I'll post one.

I need the build date of the vehicle. It's on a sticker on the door/door pillar.
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Friday, April 6th, 2012 AT 4:13 PM
Tiny
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  • 4 POSTS
Okay. I'll have to look this evening when I'm home. All I know right now is that it's a 2002 Ford Explorer XLT. I'll reply again on Monday.
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Friday, April 6th, 2012 AT 4:17 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
I need to know if it was built before 3/02 or after. The diagrams change.
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Friday, April 6th, 2012 AT 4:22 PM
Tiny
SHOLDERMAN
  • MEMBER
  • 4 POSTS
Here's my thought: the ground wire in the driver's door harness is broke. You bend a wire hanger enough times and it breaks. I think it's the tan/blue wire. Can you confirm? I'm not sure, but I don't believe that would've changed after March.
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Friday, April 6th, 2012 AT 4:39 PM

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