Ladies/Gents,
With the cold weather coming, I thought it would be a good idea to get that rear defogger working on my 72 SB. After a quick search of this group, I was able to determine that all is in working order. The switch is good, the fuse is fine, the relay seems to work just fine and the little green light in the speedo lights up like it should.
Per Speedy's suggestion, I checked to make sure I am getting juice across the grid. 13V across the element in the back window. So it seems like everything is in working order.
However, the defogger is useless. I know it is working because there is no condensation on the grid when it is on. But the rest of the window is still fogged up. Almost seems like it isn't strong enough to clear the rear window. After 20 minutes, it cleared only 1 mm to each side of the grid. I still can't see out the rear window.
Any suggestions?
Thanks for always being there, Juan