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Old 09-27-2012, 09:33 AM   #1
RogueSVT
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Question Rear Defrost Not De-Frosting! :-?

My rear defroster on my 03 SVT is not working and with the cold months coming up, I need it too. I noticed that the dfrosting wire in the rear glass has spaces in it so the connectivety isnt complete. The fuses are alright as well as the switch. Im thinking a new rear window will solve the issue, and since I can get one super cheap from the local u-pull-it junk yard, im thinking I may just do that. Any input would be helpful. Thanks!


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Old 09-27-2012, 10:53 AM   #2
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Yeah, if the trace wires that are attached to the glass are damaged, the defroster won't work because of the open circuit.

Replacement glass should fix that problem.

I haven't swapped that glass so I have no pointers, but I agree with your approach.
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Old 10-08-2012, 12:14 AM   #3
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Quote:
Originally Posted by elsolo View Post
...

Replacement glass should fix that problem.

....
This!

My old 07 Taurus had the same issue. And after trying just about every option in the book I was ready to give up and bring the girl to a "specialized glass mechanic". It would have cost me $500ish. But I decided to check a scrap yard and bought a used rear wind shield. Cost me $50 if I remember right. I brought that and the Taurus to a mechanic friend. A couple hours later I had a "new" rear window and a working rear defrost.

This is what I reccomend. I bought a few different "rear defrost repair kits" at Canadian Tire, NAPA, and Walmart. None of them really done the job. But replacing the rear window done the trick. I know that this may seem extreme but it is seriously worth it!
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Old 09-27-2012, 07:03 PM   #4
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If the gaps are small, there are ways to fix it. For some reason I think I've heard that metallic nail polish works for it? That doesn't sound right now that I've typed it, but I'm positive that if the gaps are small it can be repaired. I'd research it and try that before getting into replacing glass.

In fact, if none of it is defrosting you might have a different problem. I think ordinarily when you get a break in the resistor grid, you just lose a section after the break because it's basically one big parallel circuit (with about a hundred legs) and each leg/line will work independently of the others.
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Old 09-27-2012, 08:28 PM   #5
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This might help: How to Repair Your Defroster Grids
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Old 09-28-2012, 11:51 AM   #6
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The car had tint on the rear window when I bought it which I removed, and alot of the metallic circuitry came with it. lol. I read that about the metallic nail polish working for small gaps, but if I did that, the whole window would be painted. haha. Looks like im gonna have to go ahead and replace the rear window. Any one know any tricks to removing the rear window? Thanks again.
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Old 09-28-2012, 06:19 PM   #7
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Wasn't aware of the extent of damage, best of luck dude. No clue on getting the window out.
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Old 09-28-2012, 06:55 PM   #8
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Quote:
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Wasn't aware of the extent of damage, best of luck dude. No clue on getting the window out.
Thanks. Maybe Ill go 'practice' at the junk yard first. haha
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Old 09-28-2012, 07:48 PM   #9
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well why not run some painters tape down in between each line? get it nece and even and go at it with the defroster grid repair.

that stuff is painted on anyway. ford actually sells (or sold) the stuff. it goes on like nail polish. check out permatex 15067

if you're not up for the work, a replacement window should work.
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Old 10-07-2012, 11:53 PM   #10
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Quote:
Originally Posted by mikebontoft View Post
well why not run some painters tape down in between each line? get it nece and even and go at it with the defroster grid repair.

that stuff is painted on anyway. ford actually sells (or sold) the stuff. it goes on like nail polish. check out permatex 15067

if you're not up for the work, a replacement window should work.
Ill def check that out, thanks so is/was it a dealer only product?
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