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Rear Defroster failure...

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Old Oct 3, 2004 | 12:49 AM
  #1  
bkerlee's Avatar
bkerlee
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From: Reynoldsburg Ohio
St. Jude Donor '05
Default Rear Defroster failure...

...it worked 3 times this evening coming home, but now the green light won't light up. Think I may have blown the fuse...I'm afraid to ask, but is the fuse panel that box tucked WAY up on the firewall, under the steering wheel?

If so, anyone have a manual handy who can tell me which fuse to pull and check? Can't really read the fuse panel...

Thanks for any advice...

bkerlee
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Old Oct 3, 2004 | 08:00 AM
  #2  
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Paul L
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From: Ontario
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Before you start pulling fuses I would mention that there is a timer in the defogger circuit. In other words it shuts itself off and has to be reset from the switch after X seconds. Try it again to see if it works now.
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Old Oct 3, 2004 | 10:29 AM
  #3  
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bkerlee
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From: Reynoldsburg Ohio
St. Jude Donor '05
Default Tried it again this morning...

...and it's still no good. Guess I either get to replace a fuse, or the little light burned out. (please be the fuse...please be the fuse...)

Thanks for any more help anyone can provide, and the advice so far.
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Old Oct 3, 2004 | 12:52 PM
  #4  
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78pacer
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From: 2010 C6 Grand Sport Convertible
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On my '78 the rear defroster timer\relay was located above the l\s kick panel under the dash. It was tucked into the steel body shell in a factory hole there. I had a purple and orange wire (I believe) running to it. Locating the placement is easier than locating the part. I had to go through GM vintage parts to get one. It was around $ 55.00
Happy hunting!
Mike
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Old Oct 3, 2004 | 01:41 PM
  #5  
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Paul L
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From: Ontario
Default

Here is the 1979 fusebox. I no longer have the factory shop manual but I suspect the defogger is running through one of the two 25-amp fuses at the top. Or the one on the bottom left.

http://temp.corvetteforum.net/c3/pau...usebox_001.jpg


Last edited by Paul L; Oct 3, 2004 at 01:47 PM.
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Old Oct 5, 2004 | 12:19 PM
  #6  
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tinar61
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Default Rear Defrost

On my 81 it's on the bottom right hand side. Its the thick orange wire.
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