Originally Posted by waide
How do the elements actually work? I took the cover off of my seat cushion and found the wires to it ok. What i did find was a wire that looked fried going around in a circle around to the opposite side from where the wires are glued in. Is this still a feed wire or part of the actual element? I'm not sure when I could get pics for you to see. Might take a while. IS photobucket free? is it hard to use and post from there?
That is the start of the heater element. Cut into the foam enough to get down to where the element wire isn't cooked and extend the connector wire (with a splice) to the freshly exposed wire. Pool some silicone around this area to support the connection you make because it will now be a weak point, and it needs to withstand the constant flexing of you getting on and off the seat. This stress is why the cushion elements tend to fail before the seat back, and it is why they always seem to fail right where it exits the area where is connects to the feeder wires. All that flexing causes wire strands to break. When enough strands break it thins the wire to the point where it burns out, which is why you see the little burn marks. The key is to understand the fraying causes the burning, which causes the failure. That helps you to understand you have to insulate the connector from that constant flexing.
2001 Bonneville SSEi (retired at 365,000 Kms.)
2014 Jeep Grand Cherokee Overland (yes, I know its not a GM)